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Big Cedar-SY 910821FLOODPLAIN ANALYSIS for a Portion of TRIBUTARY G -1 of GRAPEVINE CREEK City of Coppell, Dallas County, Texas Prepared For: Fred Joyce - Mary Myers Enterprises, Inc. and Matthews Investments Southwest, Inc. August, 1991 Prepared by GOODWIN I MARSHALL E CIVIL ENGINEERS - PLANNERS 6001 Bridge Street, Suite 100 Fort Worth, Texas 76112 ham= IM FLOODPLAIN ANALYSIS for TRIBUTARY G -1 of GRAPEVINE CREEK City of Coppell, Dallas County, Texas .. TABLE OF CONTENTS Page Number INTRODUCTTON ............................ ..............................1 Purpose................................. ..............................1 Project Location .......................... ..............................1 ENGINEERING METHODOLOGY ............. ............................... 2 General................................. ..............................2 Hydrologic Analysis ....................... ............................... 2 Methodology........................ ..............................3 Existing Conditions Model ............. ............................... 4 Hydraulic Analysis ......................... ..............................5 Existing Conditions .................. ............................... 5 Proposed Improved Conditions ......... ............................... 6 Floodway........................... ..............................8 DISCUSSION................................ ..............................8 SUMMARY................................. ..............................9 CONCLUSION............................... .............................10 TABLES TABLE ONE - Peak Discharges at the Confluence of Tributary G -1 and Grapevine Creek ........... ............................... 4 TABLE TWO - Existing & Proposed Improved Conditions 100 -Year Water Surface Elevations and Velocity Calculations .... ............................... 7 AWk TABLE OF CONTENTS (Continued) FIGURES Figure1 ............................... ....................... Location Map Figures 2 through 11 ..... ............................... Tributary G -1 Cross- Sections Figure 12 ...................... 100 -Year Water Surface Profiles for Existing Watershed Aft PLATES AM Plate 1 ... ............................... Watershed Area Map for Tributary G -1 Plate 2 ........................ Existing Conditions 100 -Year Floodplain Delineations Plate 3 ............... Proposed Improved Conditions 100 -Year Floodplain Delineations APPENDICES APPENDIX A ............................. Hydrologic Analysis for Existing Conditions Watershed; 10-, 50-, 100-, & 500 -Year Frequency Events APPENDIX B ......................... Existing Conditions Hydraulic Model & Results APPENDIX C ................. Proposed Improved Conditions Hydraulic Model & Results APPENDIX D . ............................... Floodway Hydraulic Model and Results APPENDIX E ...................... Floodway Model with Proposed Improved Conditions r .-3 .^. .. Floodplain Analysis for Tributary G -1 of Grapevine Creek City of Coppell, Dallas County, Texas INTRODUCTION PURPOSE The purpose of the report contained herein is two -fold in nature. The first goal is to introduce a hydrologic and hydraulic model for a portion of Tributary G -1 of Grapevine Creek within the City Aft of Coppell, Texas. The second goal is to provide sufficient documentation in support of a conditional Letter of Map Revision (LOMR) from the Federal Emergency Management Agency (FEMA) for a proposed reclamation plan adjacent to Tributary G -1. The property in question lies in an area currently shown as Zone B on the effective Flood Insurance Rate Map (FIRM) for the region. This AM- designation indicates that the property is not currently within the limits of the 100 -year floodplain as recognized by FEMA. FEMA is currently in the process of updating the effective FIRM for the City of Coppell. The City of Coppell is requesting that FEMA include a portion of the project within the limits of the 100 -year floodplain on the revised FIRM. The request is to include the property designated as within the limits of the floodplain based on a "non - detailed" study. This report documents the 10 -, 50 -, 100 -, and 500 -year water surface delineations for a portion of Tributary G -1 for existing conditions. The basis of the water surface profiles is a detailed hydrologic and hydraulic analysis as presented. In addition, a reclamation plan is proposed for a small portion of the impacted property. The proposed plan of improvements shall be shown to meet or exceed all City of Coppell and FEMA criteria. Ok PROJECT LOCATION W__J The property that is the subject of this floodplain analysis is located immediately west of Bethel School Road near its intersection with Bethel Road in the City of Coppell, Dallas County, Texas (see Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page I .. Ak Figure 1). The project is bounded on the north by the Coppell Village subdivision, which was constructed in the early to mid 1980's. A long narrow strip of the property extends in a westerly direction near the west boundary of the proposed development. This strip is destined to be a private or public green space due to its shape and configuration around Tributary G -1. The importance of this will be addressed further in other sections of this analysis. Tributary G -1 abuts the southern boundary of the proposed residential development. However, both sides of the creek throughout the entire region of proposed development are owned by a single property owner, who is a sponsor of this floodplain analysis and request for conditional LOMB. This fact, and the corresponding impact will also be discussed in detail later in the body of this report. AW ENGINEERING METHODOLOGY ^ GENERAL The initial flood prone area identification map of this regional Flood Hazard area was dated March 8, 1974. There have been several updates of the map, with the current effective Flood Insurance Rate Map (FIRM) dated February 15, 1984. As was previously discussed, FEMA is currently in the process of updating the effective FIRM for the City of Coppell. The City has requested that a portion of the subject property be shown within the boundary of the 100 -year floodplain and classified as a "non - detailed" study region. It is the purpose of this analysis to clearly identify the existing ^ conditions 100 -year floodplain. In addition to analyzing the existing conditions floodplain, a proposed plan of improvements for the project is introduced. The reclamation plan will be analyzed in relation to all technical regulations imposed by the City of Coppell and the Federal Emergency Management Agency for projects of this type. HYDROLOGIC ANALYSIS A hydrologic computer simulation model of the Tributary G -1 watershed was developed to reflect the existing state of urbanization within the basin. The basin configuration can be found displayed on Plate 1. The hydrologic model was created to determine the peak discharge resulting from the 10 -, 50 -, 100 -, and 500 year rainfall frequencies. The Corps of Engineers computer program HEGl was used to simulate the rainfall -runoff process. Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 2 .. Aft Methodology Point rainfall input into the watershed simulation model was taken from the National Weather Service Technical Paper 40 (TP -40) "Rainfall Frequency Atlas of the United States ", May, 1961, for rainfall durations of 2 to 12 hours. The National Oceanic and Atmospheric Administration's "Five to Sixty Minute Precipitation Frequency for the Eastern and Central United States ", June 1977, was used for rainfall durations of 5 to 60 minutes. A 12 hour duration synthetic storm was developed from a triangular depth - duration distribution of this rainfall data. The assumption of a "balanced" storm was made, whereby the greatest depth for a twelve hour duration would occur at the midpoint of the storm, or at hour six in this case. The TP-40 point rainfall values were converted from a partial to annual series duration, and the effective rainfall was adjusted based on the drainage area size by the formulas provided in TP-40. The watershed of Tributary G -1 was divided into 5 separate sub - areas, as shown on Plate 1. Snyder's unit hydrograph method was used to generate a flood hydrograph for each sub -area. The flood hydrographs for the first four areas were combined, and then routed through sub -area five. The modified Puls method of storage routing was used, with a storage - discharge relationship developed by a backwater model of the creek through this area. The hydrograph resulting from the storage routing of the four upstream sub -areas was combined with the flood hydrograph from sub -area 5 to yield the peak discharge at the confluence with Grapevine Creek. By subdividing the drainage area into 5 distinct sub - areas, the current level of development can be varied for each area, thereby providing a more accurate representation of the overall existing hydrologic condition. In each sub -area, Snyder's C PI or peaking coefficient, was taken as 0.72. This is a standard value widely used by the Fort Worth District Corps of Engineers to reflect drainage basin characteristics typical of the Dallas/Fort Worth area. Snyder's T or lag time, was taken from the "Blacidand Prairie Urbanization Curves ", developed by the Fort Worth District Corps of Engineers. These curves relate T to physical watershed characteristics such as slope, length of flow path, centroid of basin, and the estimated percentage of urbanization for clay soils. By measuring these physical parameters for each sub -area, a representative Lag Time can be generated Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 3 Existing Conditions Model The level of existing development was estimated from 1985 aerial photographs of the area. Field ., inspections indicate that there has been very little development in this basin since that time. Sub -areas 1,2, and 3 show only minor amounts of development, whereas sub -areas 4 and 5 evidence a much greater level of development. As discussed above, the T or Lag Time, was adjusted to reflect the level of development in each sub -area. In addition, the amount of impervious area was estimated as a percentage of the total area, and the amount of total rainfall abstraction was reduced based on this percentage. .► The Soil Conservation Services's Runoff Curve Number method was used to simulate the amount of runoff from the soil. A hydrologic soil condition of "D ", based on SCS soil maps of the area, was used to yield a CN of 80. This is consistent with the grassland/pasture nature of the undeveloped lak Fff1x If A summary of the peak discharges for the 10 -, 50-, 100 -, and 500 -year frequency events as calculated for Tributary G -1 is given in Table One. TABLE ONE Peak Discharges at the Confluence of Tributary G -1 and Grapevine Creek 10 -Year Discharge ... ............................... 1860 cfs 50 -Year Discharge ... ............................... 2735 cfs 100 -Year Discharge .. ............................... 3140 cfs 500 -Year Discharge .. ............................... 4210 cfs AM Hoodplain Analysis for Tributary G -1 of Grapevine Creek - Page 4 Am- Aft ., The HEC -1 printouts for the existing conditions 10 -, 50 -, 100 -, and 500 year rainfall event are compiled in Appendix A. HYDRAULIC ANALYSIS Existing Conditions The City of Coppell contracted for the entire City to be flown for aerial topography in 1985. The resulting topographic maps, which are on a two foot contour interval, were obtained for use in this -� study. This topographic mapping has been field checked, and has been proven to be quite accurate. However, in the vicinity of the actual creek area for Tributary G -1, the aerial topography lacks sufficient detail for an accurate hydraulic simulation. The main reason for this is the heavy tree cover in this vicinity. Because of this fact, G &M field surveyed approximately 20 cross - sections along the reach of Tributary G -1 of concern to this analysis. The field survey data was used to complement the existing topographic data, the result being a detailed topographic map of the region, including the creek itself. This is the first time that this level of detail has been obtained for this region. The resulting regional topographic map can be found in Plate 2. In addition, the location of a portion Oft of the field surveyed cross - sections are shown on Plate 2. These cross - sections were used to create a detailed existing conditions hydraulic model. The data file was established to be used in conjunction with HEC -2, the hydraulic computation model originally created by the U.S. Army Corps of Engineers. Besides the actual cross - sectional data discussed above, many other parameters are inherent to an accurate HEC -2 model. The starting water surface elevation at the confluence of Tributary G -1 and Grapevine Creek was determined based on the energy slope method, with the energy slope approximated to be parallel to the channel bottom slope of Tributary G -1 near the vicinity of the confluence. In addition, the reach lengths between sections were measured from the base map for existing conditions as displayed on Plate 2. The Manning's Roughness Coefficient "n" values were established during a detailed site inspection of the creek. .. Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 5 Aft LO The existing conditions data file and corresponding results can be found in Appendix B, as well as on Figure 12. Table Two provides a summary of the 100 -year and 500 -year water surface profile ., calculations and corresponding channel velocities. Cross - sectional views of the individual hydraulic sections important to this analysis are shown in Figures 2 through 11. Finally, Plate 2 indicates the existing conditions 100 -year and 500 -year water surface delineations. .. Proposed Improved Conditions G &M has analyzed a proposed plan of reclamation that coincides with a proposed residential development on the subject property. This proposed plan of reclamation can be found displayed on Ak Plate 3. The plan of improvements entails earthwork operations through filling activity alone. No modifications to the channel are anticipated as a function of these improvements. The total reclamation area as shown contains less than two acres. In addition, it can be seen on Plate 3 that very little of the proposed earthwork is actually in a flow path. The vast majority of the reclaimed area consists of approximately two to three feet of fill material, and is actually in an overbank dead zone as far as actual reduction in conveyance is concerned Table Two contains a summary of the results of the proposed plan of improvements. A comparison with the existing conditions indicates that the maximum rise in the calculated 100 -year frequency water surface elevation due to the proposed improvements is 0.56 feet. This value is well within the regulatory guidelines established by FEMA and the City of Coppell. In addition, the proposed improvements hydraulic data file and corresponding results can be found in Appendix C. The limits of the proposed reclamation area and corresponding floodplain delineations can be found on Plate 3. Finally, the calculated 100 -year water surface elevation is compared to existing conditions on Figure 12. IN- Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 6 .. TABLE TWO Aft .. AOk Aw ,. EAding Conditions and Proposed Improved Conditions 100 -year Water Surface Profiles and Veloeity Calculations Section Number Existing Conditions Proposed Improved Conditions Elevation Velocity (ft /sec) Elevation velocity (ftlsec) 1+20 484.38 7.82 484.38 7.82 2 +20 484.75 10.92 484.75 10.92 2 +30 483.61 16.95 483.61 16.95 2 +90 487.29 11.96 487.29 11.96 3 +40 489.81 5.00 489.81 5.00 5 +60 489.85 14.24 489.85 14.24 7 +70 493.58 3.20 493.58 3.20 9 +45 493.72 3.23 493.71 3.61 11 +20 493.89 2.84 493.94 2.81 12 +80 493.76 6.07 493.77 6.29 14 +50 494.39 5.70 494.44 5.66 17 +60 495.16 2.72 495.27 3.78 19 +60 494.64 9.43 495.20 8.44 21+35 496.46 2.95 496.63 2.84 26+15 497.23 6.19 497.30 6.11 31+25 499.50 7.12 499.50 7.10 35 +15 501.33 735 501.33 7.35 Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 7 Floodwav Because the technical analysis contained herein represents the initial detailed Flood Insurance Study (FIS) for the region, a floodway determination is necessary. This has been performed based on the existing conditions hydraulic model previously discussed and presented in Appendix B. It should be stressed that the same person owns all of the property on both sides of Tributary G -1 throughout the entire reach currently under evaluation. Therefore, the floodway analysis does not impact any adjacent landowners, other than those sponsoring this floodplain study. The floodway model and results can be found in Appendix D. The results of the floodway in conjunction with the proposed plan of improvements can be found in Appendix E. It should be noted that initiation of the floodway has very little impact throughout the reach with the exception of the region from section 17 +60 through section 21+35. It should also be stressed that the region upstream of section 21+35 is proposed to be a city park, therefore, should not be subject to any encroachments. Finally, the floodway delineation can be found displayed on Plate 2. DISCUSSION It has been discussed that the property of concern to this analysis currently lies in an area designated as Zone B on the effective Flood Insurance Rate Map for the region. It has also been discussed that the effective FIRM for the region is currently being updated During the process the City of Coppell has requested that the Federal Emergency Management Agency show a portion of the property to -- be included as within Zone A, based on a "non - detailed" study region. Goodwin and Marshall, Inc. has prepared the engineering documentation necessary to establish a detailed study area for a length of approximately 3,500 linear feet of Tributary G -1 upstream from its confluence with Grapevine Creek. The engineering documentation includes a detailed unit hydrograph based hydrologic model utilizing the HEC -1 program, as well as a detailed existing conditions hydraulic model utilizing the HEC -2 program. The hydraulic model is based on the results of extensive field surveys of the creek in conjunction with published regional topographic data obtained from the City of Coppell. Combined these items make up the necessary components of a detailed Flood Insurance Study for the region. F000dplain Analysis for Tributary G -1 of Grapevine Creek - Page 8 AW In addition to compiling the necessary data to establish the floodplain location, G &M has introduced a proposed plan of reclamation for an area of approximately 1.8 acres in size. The area is mostly an AM overbank flow region, with very little true conveyance area involved. The results of the proposed plan of improvements are shown to he well within City of Coppell and FEMA guidelines. It should be reemphasized that all property on both sides of Tributary G -1 throughout the region of concern to this analysis is owned by one party. Therefore, no adjacent landowners are involved, and no adjacent structure is impacted by the initial floodplain analysis and determination of a floodplain delineation, nor by the proposed plan of improvements. In closing the discussion on the proposed improvements it must be stressed, due to the project's proximity to existing residential development, that no existing structure is in any way impacted by the slight rise in water surface resulting from the reclamation plan introduced herein. As previously discussed, the existence of the long thin portion of the property adjacent to the Coppell Village acts to mitigate the impact of any rise in calculated water surface elevation associated with the plan of improvements. The actual rise is in all cases confined to areas owned by the sponsor of this request for a Floodplain Development Permit. All criteria as established by the City of Coppell and FEMA are strictly adhered to. SUMMARY IM It has been shown that the City of Coppell has requested the Federal Emergency Management Agency to include a portion of the property generally located at the northwest corner of the intersection of Bethel School Road and Bethel Road as a non - detailed floodplain area. It has also been shown that Goodwin and Marshall, Inc. has performed a detailed hydrologic and hydraulic analysis of the region. This analysis addresses the 10 -, 50-, 100- and 500 -year frequency storms for the Tributary G -1 watershed. Finally, G &M has presented a plan of improvement that has been shown to meet or exceed all City of Coppell and FEMA regulations regarding this type of development. All property impacted by the localized rise in water surface elevations that do result from the proposed development are owned by the sponsor of this project. It must be stressed that the impacts of the reclamation program are extremely localized. At the upstream boundary of the AM Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 9 .. subject property the proposed improved conditions water surface elevations correspond with the existing conditions elevations. CONCLUSION Aft It has been shown that a detailed flood study has been performed on Tributary G -1 of Grapevine Creek. The work represented herein represents the first time that sufficient information has been presented to accurately determine the 100 -year frequency water surface elevations through the region. In addition, a reclamation program is introduced which has been shown to meet all City of Coppell AM technical criteria, as well as all associated FEMA requirements. It has also been shown that no structures are effected by the plan of improvements and that all impacts are contained to the subject property. On behalf of the owners of the property in question, we respectfully request that the property be introduced into the City of Coppell Flood Insurance Rate Map as a detailed study area .r based on the analysis contained herein. In addition, a plan of reclamation for a small portion of the property has been proposed. Supporting documentation has been introduced to show that the reclamation plan meets or exceeds all FEMA and City of Coppell criteria for reclamation projects. Therefore, on behalf of the owners of the property we respectfully request that a conditional Letter of Map Revision be issued for the project. AS- Floodplain Analysis for Tributary G -1 of Grapevine Creek - Page 10 - r� VICINITY MAP J RIVER RD. d � a STEAIBMT OR. A wmm MOSS m N KM ff. KT.S. com BROOKS a� H LK PRO.�'CT LOCATIIOIV TRB rARY G-1 BIEIfIS ST. 3 BELT L!E ROAD EAST GATEWAY BLVD. G OODWIN $ HALL 9 CIVIL KNO WERE - PLANNERS - SURMORS 0001 NOD00 STMT. UOTf 10R Pow WON. TV" TOO! 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S v i v } r / 1 4 Q r �r v _ -..i I 1 C � \ �, ._ir�'ii:$ / � / / )CO ( ( 1 I >f %' (j \ r 1 \ � — 4 96 � a I f \ l ( \ r . ,_ -• ,�� AA ... _ / f J / 1 i _ - ._ ! 1 J I l V � ,..,,, -� i..- r / / i 1 t i - r V v �` v� v ' 56 0 Q ! lJ AA \ \\ v t + 98 ag ' ` . F- +/ ~ � t ' / 1 / / � -' '" '.. .... / _ \ ` ` \ \\ ��� � ` 492 — r / O � r / / ! I ' 0 508 i " l 1 r / / / �� - V A / AV` �V� � / // - - - / � 1450 \ �} �o \\ � � _ +\ j t / , /// -_ I\ \ \ \ ~� t \ \ \ \ \ \\ ~ _ - ` 482 /Ir \ r / \ \\ \ \ h 9 510 1 t.....� __ 1! I / - - - - -- v q rr v v � _ _476— t _ .v Avvy` y et ib 1121.7 5 \` 945 \ 770 \( g92 4 - -��ii , \\ \� \� t BE`T HEL ROA M vv v vv Cq Z \ �\� \ t t��� a +, 1 4111 . / �- - - 504 - , / I I V CTt� E �� Q17196, -rte -..�s7 S Q 0 506 ._ NOTE: Topographic information based on interpolation of field surveyed cross - sections and City of Coppell LEGEND two foot contour interval topographic maps. 1280 Cross - section Location Fioodplain Delineation 500 yr. Existing Conditions Floodplain Delineation 100 yr. Existing Conditions Reclamation Area NOTE: Under the proposed plan of improvements, the 100 yr, and 500 yr, delineations approximately coincide in the area of reclamation. Floodway for Proposed Improved Conditions shall remain the same as shown for Existing Conditions. t O z PLANNE Z, It ARSHALL u s ' 6 COPPELL, TEXAS U � \ t -- 510--- _ -- 508 — ' /' v r \ / / r J J i 506 p � I / r �f APPENDM A HYDROLOGIC ANALYSIS EXISTING CONDITIONS WATERSHED 10-, 50- 100-, and 500 -YEAR FREQUENCY EVENT ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/16/1991 TIME 21:49:50 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** X X xxxxx CR XXXXX X X X X % x xx R % X X X XXXXXXX XXXX X XXXXX X X X x X X 8 % X X X X X X XXXXXX% XXXXX %XX 1 1 *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC -1 KNOWN AS HEC1 (JAN 73), HECIGS, HECIDB, AND HECIKW. THE DEFINITIONS OF VARIABLES - RTIMP- AND - RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973 -STYLE INPUT STRUCTURE. THE DEFINITION OF - AMSKK- ON RM -CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS :READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM HEC -1 INPUT PAGE 1 * ** FREE * ** LINEID ....... 1 ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ..... ..7 ....... 8 ....... 9 ...... 10 *DIAGRAM 1 ID HEC1 - GRAPEVINE CREEK TRIBUTARY G 2 ID COPPEL, DALLAS COUNTY 3 ID EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 10 YR STORM * * GOODWIN AND MARSHALL, INC. JUNE 1991 * This model uses Snyder's unit hydrograph method with the Tp (lag * time) adjusted for urbanization by the Corps of Engineers * Black Land Praire urbanization curves. * * SCS runoff curve number are based on Hydrologic Soil Group "D" * and pasture /grassland. The percent impervious cover is an estimate * of the amount of existing developement. * 4 IT 10 0 0 73 5 IO 3 0 0 6 KK AREA41 * 7 KM SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD * 8 BA 0.196 * Rainfal for the 2, 5, 19, 25, 50, 100 & 500 year frequencies * 50. 0 .492 1.04 1.85 2.25 2.45 2.9 3.40 * 20. 0 .575 1.22 2.33 2.98 3.25 3.90 4.7 9 PH 10. 0 .637 1.36 2.67 3.5 3.9 4.7 5.45 * 4. 0 .73 1.556 3.151 4.2 4.6 5.5 6.5 * 2. 0 .802 1.71 3.53 4.65 5.15 6.2 7.4 * 1. 0 .88 1.90 3.92 5.24 5.73 7.00 8.35 * 0.2 0 1.2 3.10 5.18 6.30 7.10 8.50 10.48 10 LS 0 80 0 11 US 0.29 0.72 12 KK AREA - #2 * 13 KM SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD 14 BA 0.212 15 LS 0 80 10 16 US 0.20 0.72 17 KK AREA43 * 18 KM SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD * 19 BA 0.512 20 LS 0 80 5 21 US 0.535 0.72 22 KK AREA44 * 23 KM SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD * 24 BA 0.17 25 LS 0 80 40 ► HEC -1 INPUT PAGE 2 LINEID ....... 1 ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8.......9......10 26 US 0.15 0.72 27 KK COMBINE 28 KM COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC 4 30 KK ROUTEAREA #5 31 KM STORAGE ROUTING THROUGH AREA #5 32 RS 1 STOR -1 33 SV 0 11.73 27.23 42.12 59.03 77.07 102.47 34 SQ 0 500 1500 2500 3500 4800 7000 35 KK AREA - #5 36 KM SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK 37 BA 0.224 38 LS 0 80 45 39 US 0.30 0.72 40 KK COMBINETRIBUTARY "G" 41 HC 2 42 ZZ ► ) ) 1 1 1 1 ? ) 1 ) SCHEMATIC DIAGRAM OF STREAM NETWORK INPUT LINE (V) ROUTING ( - - - >) DIVERSION OR PUMP FLOW NO. (.) CONNECTOR ( < - - -) RETURN OF DIVERTED OR PUMPED FLOW 6 AREA - #1 12 AREA - #2 17 AREA - #3 22 AREA - #4 27 COMBINE ..... ............................... V V 30 ROUTE 35 AREA - #5 40 COMBINE............ ( * * *) RUNOFF ALSO COMPUTED AT THIS LOCATION ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/16/1991 TIME 21:49:50 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 ) 1 ) 1 1 l *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC1 - GRAPEVINE CREEK TRIBUTARY G COPPEL, DALLAS COUNTY EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 10 YR STORM 5 IO OUTPUT CONTROL VARIABLES IPRNT 3 IPLOT 0 QSCAL 0. IT HYDROGRAPH TIME DATA NMIN 10 IDATE 1 0 ITIME 0000 NQ 73 NDDATE 1 0 NDTIME 1200 ICENT 19 PRINT CONTROL PLOT CONTROL HYDROGRAPH PLOT SCALE MINUTES IN COMPUTATION INTERVAL STARTING DATE STARTING TIME NUMBER OF HYDROGRAPH ORDINATES ENDING DATE ENDING TIME CENTURY MARK COMPUTATION INTERVAL .17 HOURS TOTAL TIME BASE 12.00 HOURS ENGLISH UNITS DRAINAGE AREA PRECIPITATION DEPTH LENGTH, ELEVATION FLOW STORAGE VOLUME SURFACE AREA TEMPERATURE SQUARE MILES INCHES FEET CUBIC FEET PER SECOND ACRE -FEET ACRES DEGREES FAHRENHEIT * * 6 KK * AREA - #1 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD SUBBASIN RUNOFF DATA 8 BA SUBBASIN CHARACTERISTICS TAREA .20 SUBBASIN AREA PRECIPITATION DATA 1 ) l ) ) 1 1 1 ) 9 PH DEPTHS FOR 10- PERCENT HYPOTHETICAL STORM HYDRO -35 .. . TP -40 .... .. TP -49 ... ..... ...... ...... ...... ....... .. .... .... .. ...... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .64 1.36 2.67 3.50 3.90 4.70 5.45 .00 .00 .00 .00 .00 STORM AREA = .20 10 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP .00 PERCENT IMPERVIOUS AREA 11 US SNYDER UNITGRAPH TP .29 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .40 HR, R= .13 HR SNYDER TP= .29 HR, CP= .71 UNIT HYDROGRAPH 6 END -OF- PERIOD ORDINATES 109. 286. 249. 89. 21. 5. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA - #1 TOTAL RAINFALL = 5.39, TOTAL LOSS 2.15, TOTAL EXCESS = 3.24 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) 6 6 24 -HR 72 -HR 12.00 -HR - HR 33 (CFS) 65. 34. 34. 34. (INCHES) 3.071 3.203 3.203 3.203 (AC -FT) 32. 33. 33. 33. CUMULATIVE AREA - .20 SQ MI 1 * * * * * * * * * * * * ** * * 12 KK * AREA - #2 * * * * * * * * * * * * * * ** SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD SUBBASIN RUNOFF DATA 14 BA SUBBASIN CHARACTERISTICS TAREA .21 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 10- PERCENT HYPOTHETICAL STORM ... HYDRO -35 ... .. . TP -40 TP -49 ... . . . .. ...... ...... ....... ...... ...... .... ...... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .. .64 1.36 2.67 3.50 3.90 4.70 5.45 .00 .00 .00 .00 .00 STORM AREA .21 15 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 10.00 PERCENT IMPERVIOUS AREA 16 US SNYDER UNITGRAPH TP .20 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .31 HR, R= .08 HR SNYDER TP= .20 HR, CP= .70 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 230. * ** TOTAL RAINFALL = PEAK FLOW ( TIME (CFS 6 31 410. 180. HYDROGRAPH AT STATION AREA - #2 5.39, TOTAL LOSS = 1.94, TOTAL EXCESS = 3.45 MAXIMUM AVERAGE FLOW 6 -HR 24 -HR 72 -HR 12.00 -HR (CFS) 73. 39. 39. 39. (INCHES) 3.212 3.433 3.433 3.433 (AC -FT) 36. 39. 39. 39. CUMULATIVE AREA = .21 SQ MI ) * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 17 KK * AREA43 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD SUBBASIN RUNOFF DATA 19 BA SUBBASIN CHARACTERISTICS TAREA .51 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 10- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 22 KK * AREA44 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 10- PERCENT HYPOTHETICAL STORM ..... HYDR0-35 ...... ............... TP -40 ....... TP -49 ........... 5 -MIN 15 -MIN 60 -MIN 2 -FIR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .64 1.36 2.67 3.50 3.90 4.70 5.45 .00 .00 .00 .00 .00 STORM AREA .51 20 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 5.00 PERCENT IMPERVIOUS AREA 21 US SNYDER UNITGRAPH TP .54 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .70 HR, R= .33 HR SNYDER TP= .53 HR, CP= .73 UNIT HYDROGRAPH 13 END -OF- PERIOD ORDINATES 65. 223. 380. 434. 346. 214. 128. 77. 46. 28. 17. 10. 6. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA43 TOTAL RAINFALL = 5.39, TOTAL LOSS = 2.05, TOTAL EXCESS = 3.34 PEAK FLOW MAXIMUM AVERAGE FLOW (C 67 HR � ( TIME 24-HR 72-HR 12.00 -HR 6 OW (CFS) 17 (INCHES) 3.118 3.267 3.267 3.267 (AC -FT) 85. 89. 89. 89. CUMULATIVE AREA - .51 SQ MI * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 22 KK * AREA44 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 10- PERCENT HYPOTHETICAL STORM ..... HYDR0-35 ...... ............... TP -40 ....... TP -49 ........... 7 -DAY 10 -DAY .00 .00 * * * * * * * * * * * * ** * * 27 KK * COMBINE * * * * * * * * * * * * * * ** COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY .64 1.36 2.67 3.50 3.90 4.70 5.45 .00 .00 .00 STORM AREA .17 25 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 40.00 PERCENT IMPERVIOUS AREA 26 US SNYDER UNITGRAPH TP .15 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .22 HR, R= .08 HR SNYDER TP= .15 HR, CP= .55 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 272. 329. 57. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA44 TOTAL RAINFALL 5.39, TOTAL LOSS = 1.29, TOTAL EXCESS = 4.10 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 40�. 6.33 (CFS) 67. 37. 37. 37. (INCHES) 3.646 4.083 4.083 4.083 (AC -FT) 33. 37. 37. 37. CUMULATIVE AREA - .17 SQ MI 7 -DAY 10 -DAY .00 .00 * * * * * * * * * * * * ** * * 27 KK * COMBINE * * * * * * * * * * * * * * ** COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW ) ) ) ) ) ) ) ) ) ) ) (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 1666. 6.33 (CFS) 375. 200. 200. 200. (INCHES) 3.200 3.415 3.415 3.415 (AC -FT) 186. 199. 199. 199. CUMULATIVE AREA = 1.09 SQ MI * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** 77.1 102.5 4800. 7000. * * * * * * * * * * * * ** * * 35 KK * AREA45 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK * * * * * * * * * * * * ** * * 30 KK * ROUTE * AREA #5 * * * * * * * * * * * * * * ** STORAGE ROUTING THROUGH AREA #5 HYDROGRAPH ROUTING DATA 32 RS STORAGE ROUTING NSTPS 1 NUMBER OF SUBREACHES ITYP STOR TYPE OF INITIAL CONDITION RSVRIC -1.00 INITIAL CONDITION X .00 WORKING R AND D COEFFICIENT 33 SV STORAGE .0 11.7 27.2 42.1 59.0 34 SQ DISCHARGE 0. 500. 1500. 2500. 3500. * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION ROUTE PEAK FLOW TIME MAXIMUM AVERAGE FLOW ( 1403. J�p 6 -HR 24 -HR 72 -HR 12.00 -HR (CFS) 374. 199. 199. 199. (INCHES) 3.193 3.388 3.388 3.388 (AC -FT) 186. 197. 197. 197. PEAK STORAGE TIME MAXIMUM AVERAGE STORAGE (AC -FT) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 26. 6.50 8. 4. 4. 4. CUMULATIVE AREA - 1.09 SQ MI 77.1 102.5 4800. 7000. * * * * * * * * * * * * ** * * 35 KK * AREA45 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK SUBBASIN RUNOFF DATA 37 BA SUBBASIN CHARACTERISTICS TAREA .22 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 10- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... TP -40 ..... TP - .... ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY . 4 -DAY 7 -DAY 10 -DAY .64 1.36 2.67 3.50 3.90 4.70 5.45 .00 .00 .00 .00 .00 STORM AREA = .22 38 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 45.00 PERCENT IMPERVIOUS AREA 39 US SNYDER UNITGRAPH TP .30 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .45 HR, R- .11 HR SNYDER TP= .30 HR, CP= .71 UNIT HYDROGRAPH 5 END -OF- PERIOD ORDINATES 117. 316. 299. 115. 18. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA45 TOTAL RAINFALL = 5.39, TOTAL LOSS 1.19, TOTAL EXCESS = 4.21 PEAK FLOW MAXIMUM AVERAGE FLOW TIME (C 47 6 (CFS) (INCHES) (AC -FT) 68HR 3.708 44. 24-HR 72-HR 4.161 4.161 50. 50. 12.005HR 0. 4.161 50. CUMULATIVE AREA - .22 SQ MI * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 40 KK * COMBINE * TRIBUTARY "G" * * 41 HC HYDROGRAPH COMBINATION ICOMP 2 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAR LOW TIME MAXIMUM AVERAGE FLOW F (185. (HR) 2. 2 7249• 12.00-HR 6.50 (CPS) 462. 249. 2499. (INCHES) 3.271 3.520 3.520 3.520 (AC -FT) 229. 247. 247. 247. CUMULATIVE AREA = 1.31 SQ MI 1 ! OPERATION STATION HYDROGRAPH AT AREA - #1 HYDROGRAPH AT AREA - #2 HYDROGRAPH AT AREA - #3 HYDROGRAPH AT AREA - #4 4 COMBINED AT COMBINE ROUTED TO HOURS, AREA IN SQUARE MILES ROUTE HYDROGRAPH AT AREA - #5 2 COMBINED AT COMBINE * ** NORMAL END OF HEC -1 * ** RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAR TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAR 6 -HOUR 24 -HOUR 72 -HOUR AREA STAGE MAX STAGE 350. 6.33 65. 34. 34. .20 465. 6.33 73. 39. 39. .21 678. 6.67 172. 90. 90. .51 409. 6.33 67. 37. 37. .17 1666. 6.33 375. 200. 200. 1.09 1403. 6.50 374. 199. 199. 1.09 473. 6.33 89. 50. 50. .22 1858. 6.50 462. 249. 249. 1.31 * ** NORMAL END OF HEC -1 * ** ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/16/1991 TIME 21 :52:35 * * X X XXXXXXX XXXXX X % X X X X XX % % X X % XXXXXXX XXXX X XXXXX x B X X % X X X % X % % X X xxxxxxx xxxxx XXX *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC -1 KNOWN AS HEC1 (JAN 73), HECIGS, HECIDB, AND HECIKW. THE DEFINITIONS OF VARIABLES - RTIMP- AND - RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973 -STYLE INPUT STRUCTURE. THE DEFINITION OF - AMSKK- ON RM -CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM LINE * ** FREE * ** 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 HEC -1 INPUT PAGE 1 ID ....... 1.......2.. .....3.......4.......5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 *DIAGRAM ID HEC1 - GRAPEVINE CREEK TRIBUTARY G ID COPPEL, DALLAS COUNTY ID EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 50 YR STORM * * GOODWIN AND MARSHALL, INC. JUNE 1991 * This model uses Snyder's unit hydrograph method with the Tp (lag * time) adjusted for urbanization by the Corps of Engineers * Black Land Praire urbanization curves. * * SCS runoff curve number are based on Hydrologic Soil Group "D" * and pasture /grassland. The percent impervious cover is an estimate * of the amount of existing developement. * IT 10 0 0 73 IO 3 0 0 KK AREA - #1 * KM SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD * BA 0.196 * Rainfal for the 2, 5, 19, 25, 50, 100 & 500 year frequencies * 50. 0 .492 1.04 1.85 2.25 2.45 2.9 3.40 * 20. 0 .575 1.22 2.33 2.98 3.25 3.90 4.7 * 10. 0 .637 1.36 2.67 3.5 3.9 4.7 5.45 * 4. 0 .73 1.556 3.151 4.2 4.6 5.5 6.5 PH 2. 0 .802 1.71 3.53 4.65 5.15 6.2 7.4 * 1. 0 .88 1.90 3.92 5.24 5.73 7.00 8.35 * 0.2 0 1.2 3.10 5.18 6.30 7.10 8.50 10.48 LS 0 80 0 US 0.29 0.72 KK AREA - #2 * KM SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD BA 0.212 LS 0 80 10 US 0.20 0.72 KK AREA - #3 * KM SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD * BA 0.512 LS 0 80 5 US 0.535 0.72 KK AREA - #4 * KM SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD * BA 0.17 LS 0 80 40 3 HEC -1 INPUT PAGE 2 LINEID ....... 1 ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 26 US 0.15 0.72 27 KK COMBINE 28 KM COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC 4 30 KK ROUTEAREA #5 31 KM STORAGE ROUTING THROUGH AREA #5 32 RS 1 STOR -1 33 SV 0 11.73 27.23 42.12 59.03 77.07 102.47 34 SQ 0 500 1500 2500 3500 4800 7000 35 KK AREA - #5 36 KM SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK 37 BA 0.224 38 LS 0 80 45 39 US 0.30 0.72 40 KK COMBINETRIBUTARY "G" 41 HC 2 42 ZZ 3 SCHEMATIC DIAGRAM OF STREAM NETWORK INPUT LINE (V) ROUTING ( - - - >) DIVERSION OR PUMP FLOW NO. (.) CONNECTOR ( < - - -) RETURN OF DIVERTED OR PUMPED FLOW 6 AREA - #1 12 AREA - #2 17 AREA - #3 22 AREA - #4 27 COMBINE ..... ............................... V V 30 ROUTE 35 AREA - #5 40 COMBINE............ ( * * *) RUNOFF ALSO COMPUTED AT THIS LOCATION ) ) ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/16/1991 TIME 21:52:35 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC1 - GRAPEVINE CREEK TRIBUTARY G COPPEL, DALLAS COUNTY EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 50 YR STORM 5 IO OUTPUT CONTROL VARIABLES IRRNT 3 IPLOT 0 QSCAL 0. IT HYDROGRAPH TIME DATA NMIN 10 IDATE 1 0 ITIME 0000 NQ 73 NDDATE 1 0 NDTIME 1200 ICENT 19 PRINT CONTROL PLOT CONTROL HYDROGRAPH PLOT SCALE MINUTES IN COMPUTATION INTERVAL STARTING DATE STARTING TIME NUMBER OF HYDROGRAPH ORDINATES ENDING DATE ENDING TIME CENTURY MARK COMPUTATION INTERVAL .17 HOURS TOTAL TIME BASE 12.00 HOURS ENGLISH UNITS DRAINAGE AREA PRECIPITATION DEPTH LENGTH, ELEVATION FLT STORAGE VOLUME SURFACE AREA TEMPERATURE SQUARE MILES INCHES FEET CUBIC FEET PER SECOND ACRE -FEET ACRES DEGREES FAHRENHEIT * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 6 KK * AREA - #1 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD SUBBASIN RUNOFF DATA 8 BA SUBBASIN CHARACTERISTICS TAREA .20 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 .......... TP -49 . .. ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .80 1.71 3.53 4.65 5.15 6.20 7.40 .00 .00 .00 .00 .00 STORM AREA = .20 10 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP .00 PERCENT IMPERVIOUS AREA 11 US SNYDER UNITGRAPH TP .29 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .40 HR, R= .13 HR SNYDER TP= .29 HR, CP= .71 UNIT HYDROGRAPH 6 END -OF- PERIOD ORDINATES 109. 286. 249. 89. 21. 5. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA - #1 TOTAL RAINFALL = 7.40, TOTAL LOSS = 2.33, TOTAL EXCESS 5.06 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFSj (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 51 6.33 (CFS) 99. 53. 53. 53. (INCHES) 4.687 5.002 5.002 5.002 (AC -FT) 49. 52. 52. 52. CUMULATIVE AREA = .20 SQ MI * * * * * * * * * * * * ** * * 12 KK * AREA42 * * * * * * * * * * * * * * ** SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD SUBBASIN RUNOFF DATA 14 BA SUBBASIN CHARACTERISTICS TAREA .21 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM HYDRO -35 .. . TP -40 ... TP -49 ..... ...... ...... ...... ....... .... ...... .... ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .80 1.71 3.53 4.65 5.15 6.20 7.40 .00 .00 .00 .00 .00 STORM AREA = .21 15 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 10.00 PERCENT IMPERVIOUS AREA 16 US SNYDER UNITGRAPH TP .20 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .31 HR, R= .08 HR SNYDER TP= .20 HR, CP= .70 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * 17 KK * AREA43 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD SUBBASIN RUNOFF DATA 19 BA SUBBASIN CHARACTERISTICS TAREA .51 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... 230. 410. 180. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA42 TOTAL RAINFALL = 7.40, TOTAL LOSS = 2.10, TOTAL EXCESS = 5.30 PEAK TIME MAXIMUM AVERAGE FLOW FLOW (C HR 24-HR 72-HR 12.00-HR 661. 6 33 (INCHES) 4.828 5.259 5.259 5.259 (AC -FT) 55. 59. 59. 59. CUMULATIVE AREA = .21 SQ MI * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * 17 KK * AREA43 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD SUBBASIN RUNOFF DATA 19 BA SUBBASIN CHARACTERISTICS TAREA .51 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... 1 * * * * * * * * * * * * ** * * 22 KK * AREA44 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .80 1.71 3.53 4.65 5.15 6.20 7.40 .00 .00 .00 .00 .00 STORM AREA .51 20 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 5.00 PERCENT IMPERVIOUS AREA 21 US SNYDER UNITGRAPH TP .54 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC- .70 HR, R= .33 HR SNYDER TP= .53 HR, CP= .73 UNIT HYDROGRAPH 13 END -OF- PERIOD ORDINATES 65. 223. 380. 434. 346. 214. 128. 77. 46. 28. 17. 10. 6. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA43 TOTAL RAINFALL = 7.39, TOTAL LOSS = 2.22, TOTAL EXCESS = 5.18 PEAK LOW TIME MAXIMUM AVERAGE FLOW F 9 ( 100. (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR (CFS) 260. 139. 139. 139. (INCHES) 4.726 5.046 5.046 5.046 (AC -FT) 129. 138. 138. 138. CUMULATIVE AREA - .51 SQ MI 1 * * * * * * * * * * * * ** * * 22 KK * AREA44 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... * * * * * * * * * * * * ** * * 27 XX * COMBINE * * * * * * * * * * * * * * ** COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .80 1.71 3.53 4.65 5.15 6.20 7.40 .00 .00 .00 .00 .00 STORM AREA .17 25 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 40.00 PERCENT IMPERVIOUS AREA 26 US SNYDER UNITGRAPH TP .15 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC- .22 HR, R= .08 HR SNYDER TP= .15 HR, CP= .55 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 272. 329. 57. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA44 TOTAL RAINFALL 7.40, TOTAL LOSS 1.40, TOTAL EXCESS = 6.00 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 567. 6.33 (CFS) 96. 55. 55. 55. (INCHES) 5.246 5.966 5.966 5.966 (AC -FT) 48. 54. 54. 54. CUMULATIVE AREA = .17 SQ MI * * * * * * * * * * * * ** * * 27 XX * COMBINE * * * * * * * * * * * * * * ** COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 244b. 6.33 (CFS) 564. 306. 306. 306. (INCHES) 4.809 5.223 5.223 5.223 (AC -FT) 280. 304. 304. 304. CUMULATIVE 1.09 SQ MI 77.1 102.5 4800. 7000. * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 35 KK * AREA - #5 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK * * * * * * ** * * * * ** * * 30 KK * ROUTE * AREA #5 * * * * * * * * * * * * * * ** STORAGE ROUTING THROUGH AREA #5 HYDROGRAPH ROUTING DATA 32 RS STORAGE ROUTING NSTPS 1 NUMBER OF SUBREACHES ITYP STOR TYPE OF INITIAL CONDITION RSVRIC -1.00 INITIAL CONDITION X .00 WORKING R AND D COEFFICIENT 33 SV STORAGE .0 11.7 27.2 42.1 59.0 34 SQ DISCHARGE 0. 500. 1500. 2500. 3500. * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION ROUTE PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 2105. 6.50 (CFS) 563. 303. 303. 303. (INCHES) 4.802 5.177 5.177 5.177 (AC -FT) 279. 301. 301. 301. PEAK STORAGE TIME MAXIMUM AVERAGE STORAGE (AC -FT) HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 36. 1.50 11. 6. 6. 6. CUMULATIVE AREA - 1.09 SQ MI 77.1 102.5 4800. 7000. * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 35 KK * AREA - #5 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK SUBBASIN RUNOFF DATA 37 BA SUBBASIN CHARACTERISTICS TAREA .22 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 2- PERCENT HYPOTHETICAL STORM ... HYDRO -35 .. ... .. . TP -40 ......... TP -49 ... . . .... . .. ...... ...... ...... .... ... ..... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .80 1.71 3.53 4.65 5.15 6.20 7.40 .00 .00 .00 .00 .00 STORM AREA = .22 38 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 45.00 PERCENT IMPERVIOUS AREA 39 US SNYDER UNITGRAPH TP .30 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .45 HR, R= .11 HR SNYDER TP= .30 HR, CP= .71 UNIT HYDROGRAPH 5 END -OF- PERIOD ORDINATES 117. 316. 299. 115. 18. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA - #5 TOTAL RAINFALL 7.40, TOTAL LOSS = 1.28, TOTAL EXCESS = 6.11 PEAK LOW MAXIMUM AVERAGE FLOW ( TIME (CPS 24-HR 72-HR 12.00 -HR 6 651. (CFS) 128. (INCHES) 5.298 6.038 6.038 6.038 (AC -FT) 63. 72. 72. 72. CUMULATIVE AREA = .22 SQ MI 1 "l * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 40 KK * COMBINE * TRIBUTARY "G" * * * * * * * * * * * * * * ** 41 HC HYDROGRAPH COMBINATION ICOMP 2 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAR MAXIMUM AVERAGE FLOW FLOW ( 273�i. ) E (HR) 237 7 12.0 6 50 (CFS) 689 6. 37 6. 3 76. (INCHES) 4.877 5.324 5.324 5.324 (AC -FT) 342. 373. 373. 373. CUMULATIVE AREA = 1.31 SQ MI OPERATION ) STATION HYDROGRAPH AT AREA - #1 HYDROGRAPH AT AREA - #2 HYDROGRAPH AT AREA - #3 HYDROGRAPH AT AREA - #4 4 COMBINED AT COMBINE ROUTED TO HOURS, AREA ROUTE HYDROGRAPH AT AREA - #5 2 COMBINED AT COMBINE 1 ) 1 ) ) ) 1 1 RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAR TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAK 6 -HOUR 24 -HOUR 72 -HOUR AREA STAGE MAX STAGE 518. 6.33 99. 53. 53. .20 668. 6.33 110. 60. 60. .21 1009. 6.67 260. 139. 139. .51 567. 6.33 96. 55. 55. .17 2440. 6.33 564. 306. 306. 1.09 2105. 6.50 563. 303. 303. 1.09 655. 6.33 128. 73. 73. .22 2736. 6.50 689. 376. 376. 1.31 * ** NORMAL END OF HEC -1 * ** ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/16/1991 TIME 21:53 :22 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** X X XXXXXXX XXXXX X % X X X % XX X X X X x XXXXXXx XXXX X XXXXX X X X X $ x % % % X X X % X XXXXXXX XXXXX xxx *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC -1 KNOWN AS HEC1 (JAN 73), HECIGS, HECIDB, AND HECIKW. THE DEFINITIONS OF VARIABLES - RTIMP- AND - RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973 -STYLE INPUT STRUCTURE. THE DEFINITION OF - AMSKK- ON RM -CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAR OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM * ** FREE * ** LINE HEC -1 INPUT PAGE 1 ID....... I ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 *DIAGRAM 1 ID HEC1 - GRAPEVINE CREEK TRIBUTARY G 2 ID COPPEL, DALLAS COUNTY 3 ID EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 100 YR STORM * * GOODWIN AND MARSHALL, INC. JUNE 1991 * This model uses Snyder's unit hydrograph method with the Tp (lag * time) adjusted for urbanization by the Corps of Engineers * Black Land Praire urbanization curves. * * SCS runoff curve number are based on Hydrologic Soil Group "D" * and pasture /grassland. The percent impervious cover is an estimate * of the amount of existing developement. * 4 IT 10 0 0 73 5 IO 3 0 0 6 KK AREA - #1 * 7 KM SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD * 8 BA 0.196 * Rainfal for the 2, 5, 19, 25, 50, 100 & 500 year frequencies * 50. 0 .492 1.04 1.85 2.25 2.45 2.9 3.40 * 20. 0 .575 1.22 2.33 2.98 3.25 3.90 4.7 * 10. 0 .637 1.36 2.67 3.5 3.9 4.7 5.45 * 4. 0 .73 1.556 3.151 4.2 4.6 5.5 6.5 * 2. 0 .802 1.71 3.53 4.65 5.15 6.2 7.4 9 PH 1. 0 88 1.90 3.92 5.24 5.73 7.00 8.35 * 0.2 0 1.2 3.10 5.18 6.30 7.10 8.50 10.48 10 LS 0 80 0 11 US 0.29 0.72 12 KK AREA - #2 * 13 KM SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD 14 BA 0.212 15 LS 0 80 10 16 US 0.20 0.72 17 KK AREA - #3 * 18 KM SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD * 19 BA 0.512 20 IS 0 80 5 21 US 0.535 0.72 22 KK AREA - #4 * 23 KM SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD * 24 BA 0.17 25 IS 0 80 40 ) ) HEC -1 INPUT PAGE 2 LINEID ....... 3 ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 26 US 0.15 0.72 27 KK COMBINE 28 KM COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC 4 30 KK ROUTEAREA #5 31 KM STORAGE ROUTING THROUGH AREA #5 32 RS 1 STOR -1 33 SV 0 11.73 27.23 42.12 59.03 77.07 102.47 34 SQ 0 500 1500 2500 3500 4800 7000 35 KK AREA45 36 KM SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK 37 BA 0.224 38 LS 0 80 45 39 US 0.30 0.72 40 KK COMBINETRIBUTARY "G" 41 HC 2 42 ZZ ) SCHEMATIC DIAGRAM OF STREAM NETWORK INPUT LINE (V) ROUTING ( - - - >) DIVERSION OR PUMP FLOW NO. (.) CONNECTOR ( < - - -) RETURN OF DIVERTED OR PUMPED FLOW 6 AREA - #1 12 AREA42 17 AREA - #3 22 AREA - #4 27 COMBINE ..... ............................... V V 30 ROUTE 35 AREA - #5 40 COMBINE............ ( * * *) RUNOFF ALSO COMPUTED AT THIS LOCATION ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/16/1991 TIME 21:53:22 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC1 - GRAPEVINE CREEK TRIBUTARY G COPPEL, DALLAS COUNTY EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 100 YR STORM 5 IO OUTPUT CONTROL VARIABLES IPRNT 3 IPLOT 0 QSCAL 0. IT HYDROGRAPH TIME DATA NMIN 10 IDATE 1 0 ITIME 0000 NQ 73 NDDATE 1 0 NDTIME 1200 ICENT 19 PRINT CONTROL PLOT CONTROL HYDROGRAPH PLOT SCALE MINUTES IN COMPUTATION INTERVAL STARTING DATE STARTING TIME NUMBER OF HYDROGRAPH ORDINATES ENDING DATE ENDING TIME CENTURY MARK COMPUTATION INTERVAL .17 HOURS TOTAL TIME BASE 12.00 HOURS ENGLISH UNITS DRAINAGE AREA PRECIPITATION DEPTH LENGTH, ELEVATION FLOW STORAGE VOLUME SURFACE AREA TEMPERATURE SQUARE MILES INCHES FEET CUBIC FEET PER SECOND ACRE -FEET ACRES DEGREES FAHRENHEIT * * * * * * * * * * * * ** * * 6 KK * AREA - #1 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD SUBBASIN RUNOFF DATA 8 BA SUBBASIN CHARACTERISTICS TAREA .20 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 1- PERCENT HYPOTHETICAL STORM HYDRO -35 .. TP -40 .... TP -49 ... ..... ...... ...... ...... ....... ... ...... .... ..... ... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .88 1.90 3.92 5.24 5.73 7.00 8.35 .00 .00 .00 .00 .00 STORM AREA = .20 10 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP .00 PERCENT IMPERVIOUS AREA 11 US SNYDER UNITGRAPH TP .29 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .40 HR, R- .13 HR SNYDER TP= .29 HR, CP= .71 UNIT HYDROGRAPH 6 END -OF- PERIOD ORDINATES 109. 286. 249. 89. 21. 5. HYDROGRAPH AT STATION AREA - #1 TOTAL RAINFALL = 8.35, TOTAL LOSS = 2.40, TOTAL EXCESS = 5.95 PEAK FLOW TIME MAXIMUM AVERAGE FLAW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 597. 6.33 (CFS) 115. 62. 62. 62. (INCHES) 5.469 5.881 5.881 5.881 (AC -FT) 57. 61. 61. 61. CUMULATIVE AREA = .20 SQ MI * * * * * * * * * * * * ** * 12 KK * AREA42 * * SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD SUBBASIN RUNOFF DATA 14 BA SUBBASIN CHARACTERISTICS TAREA .21 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 1- PERCENT HYPOTHETICAL STORM ... HYDRO -35 .. . TP -40 TP -49 . . ...... ...... ...... ....... ...... ...... .... ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .88 1.90 3.92 5.24 5.73 7.00 8.35 .00 .00 .00 .00 .00 STORM AREA .21 15 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 10.00 PERCENT IMPERVIOUS AREA 16 US SNYDER UNITGRAPH TP .20 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .31 HR, R= .08 HR SNYDER TP= .20 HR, CP= .70 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 230. 410. 180. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA42 TOTAL RAINFALL = 8.35, TOTAL LOSS = 2.16, TOTAL EXCESS = 6.19 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR 6 -HR 24 -HR 72 -HR 12.00 -HR 764. 6.3 (INCHES) 51611 6.149 6.149 6.149 (AC -FT) 63. 70. 70. 70. CUMULATIVE AREA = .21 SQ MI 1 * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 17 KK * AREA43 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD SUBBASIN RUNOFF DATA 19 BA SUBBASIN CHARACTERISTICS TAREA .51 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 1- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... 1 * * * * * * * * * * * * ** * * 22 KK * AREA - #4 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 1- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ......... TP -49 ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .88 1.90 3.92 5.24 5.73 7.00 8.35 .00 .00 .00 .00 .00 STORM AREA .51 20 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 5.00 PERCENT IMPERVIOUS AREA 21 US SNYDER UNITGRAPH TP .54 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .70 HR, R= .33 HR SNYDER TP= .53 HR, CP= .73 UNIT HYDROGRAPH 13 END -OF- PERIOD ORDINATES 65. 223. 380. 434. 346. 214. 128. 77. 46. 28. 17. 10. 6. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA43 TOTAL RAINFALL = 8.34, TOTAL LOSS = 2.28, TOTAL EXCESS 6.07 PEAK FLOW TIME MAXIMUM AVERAGE FLOW ( 116j. 6-HR 24 -HR 72 -HR 12.00 -HR bHR) .67 (CFS) 303. 163. 163. 163. (INCHES) 5.507 5.919 5.919 5.919 (AC -FT) 150. 162. 162. 162. CUMULATIVE AREA - .51 SQ MI 1 * * * * * * * * * * * * ** * * 22 KK * AREA - #4 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 1- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ......... TP -49 ........... 7 -DAY 10 -DAY .00 .00 * * * * * * * * * * * * ** * * 27 KK * COMBINE * * * * * * * * * * * * * * ** COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE s ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW ) ) 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY .88 1.90 3.92 5.24 5.73 7.00 8.35 .00 .00 .00 STORM AREA = .17 25 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 40.00 PERCENT IMPERVIOUS AREA 26 US SNYDER UNITGRAPH TP .15 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .22 HR, R= .08 HR SNYDER TP= .15 HR, CP= .55 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 272. 329. 57. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA - #4 TOTAL RAINFALL 8.35, TOTAL LOSS = 1.44, TOTAL EXCESS 6.91 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 639. 6.33 (CFS) 110. 63. 63. 63. (INCHES) 6.033 6.876 6.876 6.876 (AC -FT) 55. 62. 62. 62. CUMULATIVE AREA = .17 SQ MI 7 -DAY 10 -DAY .00 .00 * * * * * * * * * * * * ** * * 27 KK * COMBINE * * * * * * * * * * * * * * ** COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE s ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** (CFSj (HR) 5. 2 7 358 12 0 358. 280 6.33 (CFS) 655. 358. (INCHES) 5.591 6.106 6.106 6.106 (AC -FT) 325. 355. 355. 355. CUMULATIVE AREA = 1.09 SQ MI * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** 77.1 102.5 4800. 7000. * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 35 KK * AREA - #5 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK * * * * * * * * * * * * ** * * 30 KK * ROUTE * AREA #5 * * * * * * * * * * * * * * ** STORAGE ROUTING THROUGH AREA #5 HYDROGRAPH ROUTING DATA 32 RS STORAGE ROUTING NSTPS 1 NUMBER OF SUBREACHES ITYP STOR TYPE OF INITIAL CONDITION RSVRIC -1.00 INITIAL CONDITION X .00 WORKING R AND D COEFFICIENT 33 SV STORAGE .0 11.7 27.2 42.1 59.0 34 SQ DISCHARGE 0. 500. 1500. 2500. 3500. * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION ROUTE PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 2427. 6.50 (CFS) 655. 355. 355. 355. (INCHES) 5.584 6.053 6.053 6.053 (AC -FT) 325. 352. 352. 352. PEAK STORAGE TIME MAXIMUM AVERAGE STORAGE (AC -FT) (HRI 6 -HR 24 -HR 72 -HR 12.00 -HR 41 6.5 13. 7. 7. 7. CUMULATIVE AREA = 1.09 SQ MI 77.1 102.5 4800. 7000. * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 35 KK * AREA - #5 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK 1 ) 1 ) ? ) ) ) 1 ) 1 SUBBASIN RUNOFF DATA 37 BA SUBBASIN CHARACTERISTICS TAREA .22 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 1- PERCENT HYPOTHETICAL STORM ..... ...... HYDRO -35 .. . ...... ....... ...... .. . .... ...... .. ... .. . TP -40 ... TP -49 ... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY .88 1.90 3.92 5.24 5.73 7.00 8.35 .00 .00 .00 .00 .00 STORM AREA = .22 38 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 45.00 PERCENT IMPERVIOUS AREA 39 US SNYDER UNITGRAPH TP .30 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .45 HR, R= .11 HR SNYDER TP= .30 HR, CP= .71 UNIT HYDROGRAPH 5 END -OF- PERIOD ORDINATES 117. 316. 299. 115. 18. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA45 TOTAL RAINFALL 8.35, TOTAL LOSS 1.32, TOTAL EXCESS = 7.03 PEAK FLOW T((IM)E MAXIMUM AVERAGE FLOW (C 24-HR 72-HR 12.008HR 741. 6 33 (CFS) 14HR 4. (INCHES) 6.083 6.943 6.943 6.943 (AC -FT) 73. 83. 83. 83. CUMULATIVE AREA - .22 SQ MI * * * * * * * * * * * * ** * * 40 KK * COMBINE * TRIBUTARY "G" * * * * * * * * * * * * * * ** 41 HC HYDROGRAPH COMBINATION ICOMP 2 NUMBER OF HYDROGRAPHS TO COMBINE * ** * ** * ** * ** * ** HYDROGRAPH AT STATION COMBINE PEAR TIM E MAXIMUM AVERAGE FLOW FLOW ( ( H R) 2 X 12 0438 3139. 6 50 ( CFS ) 800 0. . 438 . 4388.. (INCHES) 5.658 6.205 6.205 6.205 (AC -FT) 396. 435. 435. 435. CUMULATIVE AREA = 1.31 SQ MI 1 ) ) OPERATION STATION HYDROGRAPH AT AREA - #1 HYDROGRAPH AT AREA42 HYDROGRAPH AT AREA43 HYDROGRAPH AT AREA44 4 COMBINED AT COMBINE ROUTED TO PEAK ROUTE HYDROGRAPH AT AREA45 2 COMBINED AT COMBINE * ** NORMAL END OF HEC -1 * ** RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAK 6 -HOUR 24 -HOUR 72 -HOUR AREA STAGE MAX STAGE 597. 6.33 115. 62. 62. .20 764. 6.33 128. 70. 70. .21 1162. 6.67 303. 163. 163. .51 639. 6.33 110. 63. 63. .17 2803. 6.33 655. 358. 358. 1.09 2427. 6.50 655. 355. 355. 1.09 742. 6.33 147. 84. 84. .22 3139. 6.50 800. 438. 438. 1.31 * ** NORMAL END OF HEC -1 * ** ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/17/1991 TIME 22:57:58 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** X X XXXXXXX XXXXX X % X X % X XX X X % X X XXXXXXX XXXX X XXXXX X X X B X X X X X X X X X X XXXXXXX XXXXX XXX *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC -1 KNOWN AS HEC1 (JAN 73), HECIGS, HECIDB, AND HECIKW. THE DEFINITIONS OF VARIABLES - RTIMP- AND - RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973 -STYLE INPUT STRUCTURE. THE DEFINITION OF - AMSKK- ON RM -CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE :GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM HEC -1 INPUT PAGE 1 LINE * ** FREE * ** 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ID ....... 1 ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 *DIAGRAM ID HEC1 - GRAPEVINE CREEK TRIBUTARY G ID COPPEL, DALLAS COUNTY ID EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 500 YR STORM * * GOODWIN AND MARSHALL, INC. JUNE 1991 * This model uses Snyder's unit hydrograph method with the Tp (lag * time) adjusted for urbanization by the Corps of Engineers * Black Land Praire urbanization curves. * * SCS runoff curve number are based on Hydrologic Soil Group "D" * and pasture /grassland. The percent impervious cover is an estimate * of the amount of existing developement. * IT 10 0 0 73 IO 3 0 0 KK AREA - #1 * KM SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD * BA 0.196 * Rainfal for the 2, 5, 19, 25, 50, 100 & 500 year frequencies * 50. 0 .492 1.04 1.85 2.25 2.45 2.9 3.40 * 20. 0 .575 1.22 2.33 2.98 3.25 3.90 4.7 * 10. 0 .637 1.36 2.67 3.5 3.9 4.7 5.45 * 4. 0 .73 1.556 3.151 4.2 4.6 5.5 6.5 * 2. 0 .802 1.71 3.53 4.65 5.15 6.2 7.4 * 1. 0 .88 1.90 3.92 5.24 5.73 7.00 8.35 PH 0.2 0 1.02 2.45 5.18 6.30 7.10 8.50 10.48 LS 0 80 0 US 0.29 0.72 KK AREA - #2 * KM SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD BA 0.212 LS 0 80 10 US 0.20 0.72 KK AREA- #3 * KM SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD * BA 0.512 LS 0 80 5 US 0.535 0.72 KK AREA- #4 * KM SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD * BA 0.17 LS 0 80 40 ! HEC -1 INPUT PAGE 2 LINEID ....... 1 ....... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 26 US 0.15 0.72 27 KK COMBINE 28 KM COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC 4 30 KK ROUTEAREA #5 31 KM STORAGE ROUTING THROUGH AREA #5 32 RS 1 STOR -1 33 SV 0 11.73 27.23 42.12 59.03 77.07 102.47 34 SQ 0 500 1500 2500 3500 4800 7000 35 KK AREA - # 36 KM SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK 37 BA 0.224 38 LS 0 80 45 39 US 0.30 0.72 40 KK COMBINETRIBUTARY "G" 41 HC 2 42 Z Z SCHEMATIC DIAGRAM OF STREAM NETWORK INPUT LINE (V) ROUTING ( - - - >) DIVERSION OR PUMP FLOW NO. (.) CONNECTOR ( < - - -) RETURN OF DIVERTED OR PUMPED FLOW 6 AREA - #1 12 AREA - #2 17 AREA43 22 AREA- #4 27 COMBINE ..... ............................... V V 30 ROUTE 35 AREA - #5 40 COMBINE............ ( * * *) RUNOFF ALSO COMPUTED AT THIS LOCATION t ) ) ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * FLOOD HYDROGRAPH PACKAGE (HEC -1) * SEPTEMBER 1990 * VERSION 4.0 * * * RUN DATE 08/17/1991 TIME 22:57:58 * * ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 ) l 1 1 ) *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756 -1104 * *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC1 - GRAPEVINE CREEK TRIBUTARY G COPPEL, DALLAS COUNTY EXISTING CONDITIONS WATERSHED, 12 HOUR DURATION 500 YR STORM 5 IO OUTPUT CONTROL VARIABLES IPRNT 3 IPLOT 0 QSCAL 0. IT HYDROGRAPH TIME DATA NMIN 10 IDATE 1 0 ITIME 0000 NQ 73 NDDATE 1 0 NDTIME 1200 ICENT 19 PRINT CONTROL PLOT CONTROL HYDROGRAPH PLOT SCALE MINUTES IN COMPUTATION INTERVAL STARTING DATE STARTING TIME NUMBER OF HYDROGRAPH ORDINATES ENDING DATE ENDING TIME CENTURY MARK COMPUTATION INTERVAL .17 HOURS TOTAL TIME BASE 12.00 HOURS ENGLISH UNITS DRAINAGE AREA PRECIPITATION DEPTH LENGTH, ELEVATION FLOW STORAGE VOLUME SURFACE AREA TEMPERATURE SQUARE MILES INCHES FEET CUBIC FEET PER SECOND ACRE -FEET ACRES DEGREES FAHRENHEIT * * * * * * * * * * * * ** * * 6 XX * AREA - #1 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF BETHEL ROAD, WEST OF STATE ROAD SUBBASIN RUNOFF DATA 8 BA SUBBASIN CHARACTERISTICS TAREA .20 SUBBASIN AREA PRECIPITATION DATA 1 1 ) 1 ) ) l ) 1 9 PH DEPTHS FOR 0- PERCENT HYPOTHETICAL STORM HYDRO -35 .. . TP -40 TP -49 ..... ...... ...... ...... ....... ...... ...... .... ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY 1.02 2.45 5.18 6.30 7.10 8.50 10.48 .00 .00 .00 .00 .00 STORM AREA = .20 10 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP .00 PERCENT IMPERVIOUS AREA 11 US SNYDER UNITGRAPH TP .29 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .40 HR, R- .13 HR SNYDER TP= .29 HR, CP= .71 UNIT HYDROGRAPH 6 END -OF- PERIOD ORDINATES 109. 286. 249. 89. 21. 5. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA - #1 TOTAL RAINFALL = 10.48, TOTAL LOSS = 2.50, TOTAL EXCESS 7.98 PEAR FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 821. 6.33 (CFS) 151. 83. 83. 83. (INCHES) 7.161 7.874 7.874 7.874 (AC -FT) 75. 82. 82. 82. CUMULATIVE AREA = .20 SQ MI 1 * * * * * * * * * * * * ** * * 12 KK * AREA - #2 * * * * * * * * * * * * * * ** SUB -AREA #2 WEST OF COPPEL ROAD, SOUTH OF RUBY ROAD SUBBASIN RUNOFF DATA 14 BA SUBBASIN CHARACTERISTICS TAREA .21 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 0- PERCENT HYPOTHETICAL STORM HYDRO -35 .. . TP -40 TP -49 ..... ...... ...... ...... ....... ...... ...... .... ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY 1.02 2.45 5.18 6.30 7.10 8.50 10.48 .00 .00 .00 .00 .00 STORM AREA = .21 15 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 10.00 PERCENT IMPERVIOUS AREA 16 US SNYDER UNITGRAPH TP .20 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .31 HR, R= .08 HR SNYDER TP= .20 HR, CP= .70 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 230. 410. 180. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA42 TOTAL RAINFALL = 10.48, TOTAL LOSS = 2.25, TOTAL EXCESS = 8.23 PEAK FLOW TIME MAXIMUM AVERAGE FLOW ( 103j. 6-H 24-HR 72-HR 12.00 -HR 6 HR) .33 (CFS) (INCHES) 7.298 8.164 8.164 8.164 (AC -FT) 83. 92. 92. 92. CUMULATIVE AREA = .21 SQ MI 1 * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 17 KK * AREA43 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, SOUTH OF BETHEL ROAD SUBBASIN RUNOFF DATA 19 BA SUBBASIN CHARACTERISTICS TAREA .51 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 0- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... ) 4 -DAY 7 -DAY 10 -DAY .00 .00 .00 46. 28. * * * * * * * * * * * * ** * * 22 KK * AREA44 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 0- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 1.02 2.45 5.18 6.30 7.10 8.50 10.48 .00 .00 STORM AREA .51 20 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 5.00 PERCENT IMPERVIOUS AREA 21 US SNYDER UNITGRAPH TP .54 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .70 HR, R= .33 HR SNYDER TP= .53 HR, CP= .73 UNIT HYDROGRAPH 13 END -OF- PERIOD ORDINATES 65. 223. 380. 434. 346. 214. 128. 77. 17. 10. 6. HYDROGRAPH AT STATION AREA43 TOTAL RAINFALL = 10.47, TOTAL LOSS = 2.37, TOTAL EXCESS = 8.10 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 1587. 6.67 (CFS) 396. 217. 217. 217. (INCHES) 7.182 7.878 7.878 7.878 (AC -FT) 196. 215. 215. 215. CUMULATIVE AREA = .51 SQ MI ) 4 -DAY 7 -DAY 10 -DAY .00 .00 .00 46. 28. * * * * * * * * * * * * ** * * 22 KK * AREA44 * * * * * * * * * * * * * * ** SUB -AREA NORTH OF RAILROAD, WEST OF COPPEL ROAD SUBBASIN RUNOFF DATA 24 BA SUBBASIN CHARACTERISTICS TAREA .17 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 0- PERCENT HYPOTHETICAL STORM ..... HYDRO -35 ...... ............... TP -40 ............... ........... TP -49 ........... * * 27 KK * COMBINE * * COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY 1.02 2.45 5.18 6.30 7.10 8.50 10.48 .00 .00 .00 .00 .00 STORM AREA = .17 25 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 40.00 PERCENT IMPERVIOUS AREA 26 US SNYDER UNITGRAPH TP .15 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .22 HR, R= .08 HR SNYDER TP= .15 HR, CP= .55 UNIT HYDROGRAPH 3 END -OF- PERIOD ORDINATES 272. 329. 57. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA - #4 TOTAL RAINFALL = 10.48, TOTAL LOSS = 1.50, TOTAL EXCESS = 8.98 PEAK FLOW TIME MAXIMUM AVERAGE FLOW (CPS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 847. 6.33 (CFS) 140. 82. 82. 82. (INCHES) 7.678 8.926 8.926 8.926 (AC -FT) 70. 81. 81. 81. CUMULATIVE AREA = .17 SQ MI * * 27 KK * COMBINE * * COMBINE AREAS LEFT AND RIGHT OF BETHEL ROAD 29 HC HYDROGRAPH COMBINATION ICOMP 4 NUMBER OF HYDROGRAPHS TO COMBINE * ** HYDROGRAPH AT STATION COMBINE PEAK FLOW TIME MAXIMUM AVERAGE FLOW ( 3809 . 6 ( CFS ) 852 (INCHES) 7.267 (AC -FT) 422. CUMULATIVE AREA = * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** 1 ) 1 24 -HR 72 -HR 12.00 -HR 475. 475. 475. 8.097 8.097 8.097 471. 471. 471. 1.09 SQ MI * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** 77.1 102.5 4800. 7000. * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 35 KK * AREA - #5 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK * * * * * * * * * * * * ** * * 30 KK * ROUTE * AREA #5 * * * * * * * * * * * * * * ** STORAGE ROUTING THROUGH AREA #5 HYDROGRAPH ROUTING DATA 32 RS STORAGE ROUTING NSTPS 1 NUMBER OF SUBREACHES ITYP STOR TYPE OF INITIAL CONDITION RSVRIC -1.00 INITIAL CONDITION X .00 WORKING R AND D COEFFICIENT 33 SV STORAGE .0 11.7 27.2 42.1 59.0 34 SQ DISCHARGE 0. 500. 1500. 2500. 3500. * ** * ** * ** * ** * ** * ** HYDROGRAPH AT STATION ROUTE PEAR FLOW TIME MAXIMUM AVERAGE FLOW (CFS) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 3262. 6.50 (CFS) 851. 470. 470. 470. (INCHES) 7.256 8.017 8.017 8.017 (AC -FT) 422. 466. 466. 466. PEAR STORAGE TIME MAXIMUM AVERAGE STORAGE (AC -FT) (HR) 6 -HR 24 -HR 72 -HR 12.00 -HR 55. 6.50 16. 9. 9. 9. CUMULATIVE AREA = 1.09 SQ MI 77.1 102.5 4800. 7000. * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * * * * * * * * * * * ** * * 35 KK * AREA - #5 * * * * * * * * * * * * * * ** SUBAREA AT CONFLUENCE WITH GRAPEVINE CREEK * ** * ** * ** * ** *** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * 40 KK * COMBINE * TRIBUTARY "G" * * * * * * * * * * * * * * ** 41 HC HYDROGRAPH COMBINATION ICOMP 2 NUMBER OF HYDROGRAPHS TO COMBINE SUBBASIN RUNOFF DATA 37 BA SUBBASIN CHARACTERISTICS TAREA .22 SUBBASIN AREA PRECIPITATION DATA 9 PH DEPTHS FOR 0- PERCENT HYPOTHETICAL STORM ..... ...... ...... ...... ....... ...... ...... .... ........... HYDRO -35 .. . TP -40 TP -49 5 -MIN 15 -MIN 60 -MIN 2 -HR 3 -HR 6 -HR 12 -HR 24 -HR 2 -DAY 4 -DAY 7 -DAY 10 -DAY 1.02 2.45 5.18 6.30 7.10 8.50 10.48 .00 .00 .00 .00 .00 STORM AREA = .22 38 LS SCS LOSS RATE STRTL .50 INITIAL ABSTRACTION CRVNBR 80.00 CURVE NUMBER RTIMP 45.00 PERCENT IMPERVIOUS AREA 39 US SNYDER UNITGRAPH TP .30 LAG CP .72 PEAKING COEFFICIENT SYNTHETIC ACCUMULATED -AREA VS. TIME CURVE WILL BE USED * ** UNIT HYDROGRAPH PARAMETERS CLARK TC= .45 HR, R= .11 HR SNYDER TP= .30 HR, CP= .71 UNIT HYDROGRAPH 5 END -OF- PERIOD ORDINATES 117. 316. 299. 115. 18. * ** * ** * ** * ** * ** HYDROGRAPH AT STATION AREA45 TOTAL RAINFALL = 10.48, TOTAL LOSS = 1.37, TOTAL EXCESS = 9.10 PEAK MAXIMUM AVERAGE FLOW FLOW (CHR TIME 8. 2 108. 7 108. 12.0 108 991. 6 3l (CFS ) 186. . (INCHES) 7.713 8.978 8.978 8.978 (AC -FT) 92. 107. 107. 107. CUMULATIVE AREA - .22 SQ MI * ** * ** * ** * ** *** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** * ** ** * * 40 KK * COMBINE * TRIBUTARY "G" * * * * * * * * * * * * * * ** 41 HC HYDROGRAPH COMBINATION ICOMP 2 NUMBER OF HYDROGRAPHS TO COMBINE > > r r r r r r 1 r HYDROGRAPH AT STATION COMBINE PEAR FLOW TIME MAXIMUM MAXIMUM AVERAGE FLOW (421. (HR) 25 75 12.05 650 (CFS) 1035. (INCHES) 7.325 8.181 8.181 8.181 (AC -FT) 513. 573. 573. 573. CUMULATIVE AREA = 1.31 SQ MI r 1 r ) OPERATION STATION HYDROGRAPH AT AREA - #1 HYDROGRAPH AT AREA - #2 HYDROGRAPH AT AREA - #3 HYDROGRAPH AT AREA - #4 4 COMBINED AT COMBINE ROUTED TO PEAR ROUTE HYDROGRAPH AT AREA - #5 2 COMBINED AT COMBINE * ** NORMAL END OF HEC -1 * ** RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAR TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAR 6 -HOUR 24 -HOUR 72 -HOUR AREA STAGE MAX STAGE 821. 6.33 151. 83. 83. .20 1032. 6.33 166. 93. 93. .21 1587. 6.67 396. 217. 217. .51 847. 6.33 140. 82. 82. .17 3809. 6.33 852. 475. 475. 1.09 3262. 6.50 851. 470. 470. 1.09 996. 6.33 186. 108. 108. .22 4212. 6.50 1035. 578. 578. 1.31 * ** NORMAL END OF HEC -1 * ** APPENDDC B TRIBUTARY G-1 EXISTING CONDITIONS HYDRAULIC MODEL AND RESULTS 8/18/91 18:53:39 } PAGE 1 THIS RUN EXECUTED 8/18/91 18:53:39 WSEL FQ 492.40 CHNIM ITRACE 22 42 1190 473.5 1240 492 1094 474.5 489.3 489.3 0.0 474.5 490.0 490.0 1100 489.3 53 1200 1270 1100 474.5 0 HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 ERROR CORR - 01,02 MODIFICATION - T1 TRIBUTARY G1 OF GRAPEVINE CREEK - COPPELL, TEXAS - EXISTING CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 10 YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIEXIST.DAT) DMG - 8/91 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q -1 2 0.006 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 1 0 -1 J3 VARIABLE CODES FOR SUMMARY PRINTOUT 38 43 1 3 2 26 21 54 4 QT 4 1860 2735 3140 4210 NC .065 .065 .05 0.3 0.5 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 120 11 1168 1235 0 0 0 GR 492 1000 490.5 1118 488.8 1168 475.2 GR 476.4 1208 478.1 1228 487.2 1235 490 GR 492.5 1330 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 220 8 1094 1115 70 120 100 GR 490 1000 488.9 1015 487.5 1065 476.5 GR 474.5 1115 488.9 1140 489.5 1160 X1 230 0 0 0 10 10 10 X3 10 SB 1.25 1.56 2.6 0 20.7 0.7 200 STATION 2 +60 BETHEL SCHOOL ROAD Xi 290 0 0 0 60 60 60 X2 1 484.5 489.3 X3 10 BT 5 1000 491.5 0 1050 490.0 0 BT 1150 489.5 0 1200 490.4 0 } PAGE 1 THIS RUN EXECUTED 8/18/91 18:53:39 WSEL FQ 492.40 CHNIM ITRACE 22 42 1190 473.5 1240 492 1094 474.5 489.3 489.3 0.0 474.5 490.0 490.0 1100 489.3 53 1200 1270 1100 474.5 0 t 1 ) ) ) 1 l 1 1 ) ) 8/18/91 18:53:39 PAGE 2 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY Xi 340 9 1065 1125 50 50 50 GR 490 1000 488.1 1050 488.2 1065 477.0 1083 474.8 1093 GR 476.9 1100 477.5 1112 487.4 1125 491.5 1145 NC 0 0 0 0.1 0.3 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 560 16 1100 1170 150 300 220 GR 494.3 1000 497.1 1050 494.3 1080 494.2 1100 490.4 1133 GR 481.2 1144 480.2 1150 480.5 1156 490.1 1170 492.3 1220 GR 492.9 1250 493.9 1300 495.2 1350 496 1370 498 1395 GR 500 1405 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 770 16 1035 1145 200 160 210 GR 499.8 1000 498.9 1015 493.9 1035 489.8 1045 483.1 1065 GR 480.2 1075 482.6 1085 482.9 1105 486.7 1135 490.2 1145 GR 491.9 1175 492.1 1225 494 1280 496 1435 498 1450 GR 500 1480 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 945 17 1107 1277 215 30 175 GR 504.2 1000 503.0 1050 501.5 1077 490.9 1107 487.7 1127 GR 483.6 1140 478.6 1150 483.1 1160 485.9 1185 489.4 1205 GR 493.4 1277 493.7 1327 494.3 1400 495.2 1440 496 1530 GR 498 1545 500 1570 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY R1 1120 18 1250 1360 315 30 175 GR 501.1 1000 499.3 1050 497.4 1100 496.2 1150 495.4 1200 GR 495.5 1230 493.4 1250 483.7 1270 483.7 1290 479.4 1300 GR 483.4 1307 483.0 1350 490 1360 492 1385 494 1565 GR 496 1620 498.0 1640 500.0 1660 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY %1 1280 20 1260 1350 140 120 160 GR 500 1000 498 1025 495.4 1050 495.3 1100 494.5 1150 GR 493.7 1200 493.5 1250 493.4 1260 491.2 1280 484.3 1290 GR 483.2 1295 481.2 1300 482.6 1306 487.4 1320 490.2 1335 GR 492.0 1350 494 1415 496 1450 498 1460 500 1480 CROSS- SECTION TAKEN FROM 2' TOPO GENERATED FROM FIELD SURVEYS Xi 1450 21 1320 1400 140 240 170 GR 500 1000 498 1020 496 1035 494 1315 492 1318 GR 490 1320 488 1330 486 1335 484 1350 482 1355 GR 481 1360 482 1361 484 1365 486 1370 488 1375 GR 490 1380 492 1385 494 1390 496 1395 498 1398 GR 500 1400 PAGE 3 350 310 1030 494.6 8/18/91 18:53:39 1150 1270 NC .055 .055 .05 0.1 0.3 1412 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY Xl 1760 18 1270 1427 140 GR 500 1000 498 1015 496 GR 494.9 1200 495.5 1250 494.9 GR 485.6 1396 482.8 1400 485.2 GR 495.9 1437 498.1 1487 499.1 1057 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 1960 15 1158 1213 170 GR 500 1000 498.2 1123 496.6 GR 484.8 1186 485.8 1189 488.4 GR 494.7 1251 495.8 1286 497.0 504 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY %1 2135 13 1035 1290 120 GR 501 1000 499.7 1035 488.5 GR 487.4 1064 490.2 1074 490.0 GR 496 1290 498 1375 500 NC .05 .05 .045 1120 1145 492 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 2615 14 1075 1171 460 GR 502 1000 500 1025 498 GR 490.4 1140 488.5 1145 486.9 GR 499.1 1186 500 1230 502 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 3125 16 1055 1137 390 GR 504 1000 502 1015 500 GR 492.3 1095 490.2 1099 488.5 GR 493.8 1127 497.1 1137 498.9 GR 504 1360 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 3515 16 1110 1170 380 GR 504 1000 502 1035 500 GR 494 1130 492 1135 490.8 GR 496 1160 498 1165 500 GR 506 1270 PAGE 3 350 310 1030 494.6 1100 494.9 1150 1270 487.6 1295 486.9 1355 1402 487.6 1412 495.2 1427 1500 220 200 1158 490.1 1168 485.6 1183 1201 493.1 1213 492.0 1221 1316 498.4 1386 499.2 1436 80 175 1047 486.3 1057 485.6 1060 1090 492 1150 494 1230 1420 270 480 1060 497.3 1075 491.6 1105 1150 488.9 1156 497.2 1171 1270 504 1340 440 510 1030 498 1055 497.4 1080 1104 490.2 1110 492.3 1115 1168 500 1190 502 1280 325 390 1090 498 1110 496 1120 1145 492 1150 494 1153 1170 502 1185 504 1225 SPECIAL BRIDGE SB XK XKOR COFQ RDLEN BWC BWP BARBA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 *SECNO 290.000 1 PAGE 4 8/18/91 18:53:39 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELKIN SETA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *PROF 1 CCHV- .300 CEHV= .500 *SECNO 120.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 120.00 8.69 482.19 .00 492.40 482.87 .68 .00 .00 488.80 1860. 0. 1860. 0. 0. 281. 0. 0. 0. 487.20 .00 .00 6.61 .00 .000 .050 .000 .000 473.50 1178.69 .005916 0. 0. 0. 0 0 6 .00 52.46 1231.15 *SECNO 220.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 220.00 8.12 482.62 .00 .00 483.62 1.00 .59 .16 476.50 1860. 173. 1456. 231. 49. 165. 57. 1. 0. 474.50 .00 3.51 8.85 4.03 .065 .050 .065 .000 474.50 1077.87 .005816 70. 100. 120. 2 0 0 .00 51.23 1129.10 *SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .69 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA= 489.30 230.00 7.55 482.05 .00 .00 484.36 2.31 .08 .65 476.50 1860. 0. 1860. 0. 0. 152. 0. 1. 0. 474.50 .00 .00 12.20 .00 .000 .050 .000 .000 474.50 1094.00 .012231 10. 10. 10. 3 0 0 .00 21.00 1115.00 SPECIAL BRIDGE SB XK XKOR COFQ RDLEN BWC BWP BARBA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 *SECNO 290.000 1 PAGE 4 1 ) 1 ) 1 1 ) ) 8/18/91 18 :53:39 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELKIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC TCONT CORAR TOPWID ENDST CLASS A LOW FLOW 3420 BRIDGE W.S.= 481.50 BRIDGE VELOCITY= 13.29 CALCULATED CHANNEL AREA= 140. EGPRS EGLWC H3 QWEIR QLOW BAREA TRAPEZOID ELLC ELTRD WEIRLN AREA 484.14 484.68 .73 0. 1860. 200. 200. 484.50 489.30 0. 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 490.00 ELREA- 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 8.27 482.77 .00 .00 484.68 1.91 .33 .00 476.50 1860. 0. 1860. 0. 0. 168. 0. 1. 0. 474.50 01 00 11.09 .00 .000 .050 .000 .000 474.50 1094.00 .008904 60. 60. 60. 0 0 0 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.61 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 10.08 484.88 .00 .00 485.37 .49 .26 .43 488.20 1860. 0. 1860. 0. 0. 330. 0. 1. 0. 487.40 .01 .00 5.63 .00 .000 .050 .000 .000 474.80 1070.35 .003416 50. 50. 50. 3 0 0 .00 51.33 1121.68 CCHV= .100 CEHV= .300 * SECNO 560.000 3301 HV CHANGED MORE THAN HVINS 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 560.00 7.43 487.63 487.63 .00 490.11 2.49 1.63 .60 494.20 1860. 0. 1860. 0. 0. 147. 0. 2. 0. 490.10 01 00 12.65 .00 .000 .050 .000 .000 480.20 1136.31 .026466 150. 220. 300. 20 19 0 .00 30.08 1166.39 1 PAGE 5 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.45 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 770.00 10.55 490.75 .00 .00 490.88 .13 .53 .24 493.90 1860. 0. 1859. 1. 0. 633. 3. 4. 1. 490.20 03 00 2.94 .29 .000 .050 .065 .000 480.20 1042.68 .000890 200. 210. 160. 3 0 0 .00 112.05 1154.73 * SECNO 945.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .69 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 945.00 12.34 490.94 .00 .00 491.12 .18 .22 .01 8/18/91 1860. 18:53:39 1860. 0. 0. 549. 0. 7. SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.45 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 770.00 10.55 490.75 .00 .00 490.88 .13 .53 .24 493.90 1860. 0. 1859. 1. 0. 633. 3. 4. 1. 490.20 03 00 2.94 .29 .000 .050 .065 .000 480.20 1042.68 .000890 200. 210. 160. 3 0 0 .00 112.05 1154.73 * SECNO 945.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .69 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 945.00 12.34 490.94 .00 .00 491.12 .18 .22 .01 490.90 1860. 0. 1860. 0. 0. 549. 0. 7. 1. 493.40 05 .01 3.39 .00 .000 .050 .000 .000 478.60 1106.90 .001893 215. 175. 30. 2 0 0 .00 125.76 1232.66 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.91 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1120.00 11.79 491.19 .00 .00 491.28 .09 .16 .01 493.40 1860. 0. 1857. 3. 0. 762. 9. 9. 2. 490.00 07 00 2.44 .36 .000 .050 .065 .000 479.40 1254.58 .000517 315. 175. 30. 0 0 0 .00 120.16 1374.74 * SECNO 1280.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - .28 PAGE 6 *SECNO 1450.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.57 CROSS - SECTION TAKEN CROSS - SECTION TAKEN 8/18/91 18:53 :39 1960.00 1450.00 10.99 491.99 .00 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY .03 490.00 1860. 2. 1280.00 9.80 491.00 .00 .00 491.65 .65 .20 .17 493.40 1860. 0. 1860. 0. 0. 287. 0. 11. 2. 492.00 .07 .00 6.48 .00 .000 .050 .000 .000 481.20 1280.29 .006589 140. 160. 120. 2 0 0 .00 61.39 1341.67 *SECNO 1450.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.57 CROSS - SECTION TAKEN CROSS - SECTION TAKEN FROM 2' TOPO GENERATED FROM FIELD SURVEYS 1960.00 1450.00 10.99 491.99 .00 .00 492.36 .36 .68 .03 490.00 1860. 2. 1858. 0. 2. 384. 0. 13. 2. 500.00 08 94 4.84 .00 .065 .050 .000 .000 481.00 1318.01 .002676 140. 170. 240. 2 0 0 .00 66.98 1384.99 CCHV= .100 CEHV= .300 *SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.92 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1760.00 9.89 492.69 .00 .00 492.78 .09 .39 .03 494.90 1860. 0. 1860. 0. 0. 774. 0. 17. 3. 495.20 12 00 2.40 00 .000 .050 .000 .000 482.80 1277.59 .000726 140. 310. 350. 2 0 0 .00 144.44 1422.03 *SECNO 1960.000 3265 DIVIDED FLOW 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .19 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1960.00 7.23 492.03 .00 .00 493.64 1.61 .41 .46 496.60 1860. 0. 1860. 0. 0. 182. 0. 19. 3. 493.10 .12 .00 10.19 .04 .000 .050 .055 .000 484.80 1165.02 .019674 170. 200. 220. 3 0 0 .00 45.91 1221.39 PAGE 7 *SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.88 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 497.95 .00 .00 498.58 2135.00 8.97 494.57 8/18/91 .14 18:53:39 .15 499.70 1860. 0. 1860. 0. 0. 622. SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL %NCH XNR WTN ELKIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.88 * SECNO 2615.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 497.95 .00 .00 498.58 2135.00 8.97 494.57 .00 .00 494.70 .14 .92 .15 499.70 1860. 0. 1860. 0. 0. 622. 0. 20. 4. 496.00 14 00 2.99 .00 .000 .050 .000 .000 485.60 1040.50 .002375 120. 175. 80. 3 0 0 .00 206.44 1246.94 * SECNO 2615.000 * SECNO 3125.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .70 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 497.95 .00 .00 498.58 2615.00 8.84 495.74 .00 .00 496.13 .39 1.35 .07 497.30 1860. 0. 1860. 0. 0. 372. 0. 26. 6. 497.20 17 00 5.00 .00 .000 .045 .000 .000 486.90 1083.21 .003368 460. 480. 270. 3 0 0 .00 85.15 1168.36 * SECNO 3125.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .70 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 9.45 497.95 .00 .00 498.58 .62 2.38 .07 498.00 1860. 0. 1851. 9. 0. 292. 6. 30. 7. 497.10 19 00 6.34 1.40 .000 .045 .050 .000 488.50 1056.93 .006904 390. 510. 440. 4 0 0 .00 94.77 1151.70 * SECNO 3515.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.40 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 9.14 499.94 .00 .00 500.45 .51 1.86 .01 498.00 1860. 33. 1827. 0. 19. 317. 0. 33. 7. 500.00 21 1.72 5.77 .00 .050 .045 .000 .000 490.80 1090.56 .003510 380. 390. 325. 2 0 0 .00 79.30 1169.86 1 1 ) PAGE 8 1 f ) 1 ) 1 ) 1 ) 8/18/91 18:53:39 T1 TRIBUTARY Gl OF GRAPEVINE CREEK - COPPELL, TEXAS - EXISTING CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 50 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIEXIST.DAT) DMG 8/91 Jl ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ -1 3 .0060 493.88 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM ITRACE 2 0 -1 i ) PAGE 9 1 ) ) PAGE 10 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 481.56 , NOT 482.92 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) 8/18/91 18:53:39 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *PROF 2 CCHV= .300 CEHV= .500 * SECNO 120.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 120.00 10.27 483.77 .00 493.88 484.63 .86 .00 .00 488.80 2735. 0. 2735. 0. 0. 367. 0. 0. 0. 487.20 .00 .00 7.45 .00 .000 .050 .000 .000 473.50 1176.13 .005893 0. 0. 0. 0 0 6 .00 56.23 1232.36 * SECNO 220.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 220.00 9.65 484.15 .00 .00 485.46 1.31 .60 .22 476.50 2735. 326. 2030. 379. 77. 197. 81. 1. 0. 474.50 .00 4.22 10.32 4.69 .065 .050 .065 .000 474.50 1073.82 .006232 70. 100. 120. 2 0 0 .00 57.93 1131.76 * SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .59 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA- 489.30 230.00 8.42 482.92 482.84 .00 486.89 3.98 .10 1.33 476.50 2735. 0. 2735. 0. 0. 171. 0. 1. 0. 474.50 .00 .00 16.01 .00 .000 .050 .000 .000 474.50 1094.00 .018084 10. 10. 10. 6 11 0 .00 21.00 1115.00 1 ) ) PAGE 10 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 481.56 , NOT 482.92 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) 8/18/91 18 :53:39 PAGE 11 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST SB XK XKOR COFQ RDLEN BWC BWP BAREA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 * SECNO 290.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.42 PRESSURE FLOW EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID AREA ELLC ELTRD WEIRLN 487.45 487.31 .00 0. 2735. 200. 200. 484.50 489.30 0. 3495 OVERBANK AREA ASSUMED NON- EFFECTIVE, ELLEA= 490.00 ELREA- 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 10.34 484.84 .00 .00 487.45 2.60 .55 .00 476.50 2735. 0. 2735. 0. 0. 211. 0. 1. 0. 474.50 00 00 12.95 00 .000 .050 .000 .000 474.50 1094.00 .008922 60. 60. 60. 4 0 0 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.93 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 13.02 487.82 .00 .00 488.29 .48 .21 .64 488.20 2735. 0. 2735. 0. 0. 494. 0. 2. 0. 487.40 O1 .00 5.54 38 .000 .050 .065 .000 474.80 1065.62 .002390 50. 50. 50. 3 0 0 .00 61.38 1127.01 CCHV= .100 CEHV= .300 * SECNO 560.000 *SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.76 CROSS- SECTION TAKEN FROM G&M 8/18/91 18:53 :39 SURVEY 492.92 .00 .00 770.00 12.56 492.76 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS 1244.02 .00 167.22 1268.49 *SECNO 1120.000 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.66 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3720 CRITICAL DEPTH ASSUMED 1120.00 13.71 493.11 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 493.23 .12 .14 .01 560.00 9.07 489.27 489.27 .00 492.18 2.91 1.23 .73 494.20 2735. 0. 2735. 0. 0. 200. 0. 3. 0. 490.10 01 .00 13.68 .00 .000 .050 .000 .000 480.20 1134.35 .024956 150. 220. 300. 20 11 0 .00 34.43 1168.79 *SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.76 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 492.92 .00 .00 770.00 12.56 492.76 .00 .00 492.91 .15 .46 .28 493.90 2735. 0. 2668. 67. 0. 843. 95. 6. 1. 490.20 03 00 3.16 .71 .000 .050 .065 .000 480.20 1037.79 .000753 200. 210. 160. 3 0 0 .00 206.23 1244.02 *SECNO 945.000 1 PAGE 12 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 945.00 14.32 492.92 .00 .00 493.09 .17 .17 .00 490.90 2735. 5. 2730. 0. 6. 834. 0. 9. 2. 493.40 05 83 3.27 .00 .065 .050 .000 .000 478.60 1101.26 .001397 215. 175. 30. 2 0 0 .00 167.22 1268.49 *SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.66 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1120.00 13.71 493.11 .00 .00 493.23 .12 .14 .01 493.40 2735. 0. 2671. 64. 0. 969. 108. 13. 2. 490.00 06 00 2.76 .59 .000 .050 .065 .000 479.40 1250.60 .000506 315. 175. 30. 0 0 0 .00 234.00 1484.60 1 PAGE 12 * SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.01 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1760.00 11.68 494.48 .00 .00 494.58 .11 .35 .04 8/18/91 18:53:39 2735. 0. 2735. 0. 0. 1041. 0. SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST * SECNO 1280.000 3302 WARNING: CONVEYANCE CHANGE 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .30 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1960.00 9.12 1280.00 11.76 492.96 .00 .00 493.56 .61 .19 .15 493.40 2735. 0. 2719. 16. 0. 434. 15. 16. 3. 492.00 07 00 6.26 1.04 .000 .050 .065 .000 481.20 1263.99 .005454 140. 160. 120. 2 0 0 .00 117.24 1381.23 * SECNO 1450.000 1242.34 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.45 CROSS- SECTION TAKEN FROM 2' TOPO GENERATED FROM FIELD SURVEYS 1450.00 12.74 493.74 .00 .00 494.20 .46 .62 .01 490.00 2735. 12. 2723. 0. 8. 501. 0. 18. 3. 500.00 08 1.55 5.44 00 .065 .050 .000 .000 481.00 1315.39 .002581 140. 170. 240. 2 0 0 .00 73.96 1389.35 CCHV= .100 CEHV= .300 * SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.01 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1760.00 11.68 494.48 .00 .00 494.58 .11 .35 .04 494.90 2735. 0. 2735. 0. 0. 1041. 0. 23. 4. 495.20 .11 00 2.63 .00 .000 .050 .000 .000 482.80 1271.45 .000638 140. 310. 350. 2 0 0 .00 154.12 1425.57 * SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO .23 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1960.00 9.12 493.92 .00 .00 495.31 1.39 .34 .38 496.60 2735. 0. 2636. 99. 0. 274. 31. 26. 4. 493.10 12 00 9.61 3.14 .000 .050 .055 .000 484.80 1162.12 .012018 170. 200. 220. 3 0 0 .00 80.22 1242.34 PAGE 13 * SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS HL OLOSS BANK ELEV VOL TWA LEFT /RIGHT WTN ELMIN SSTA CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.65 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY OF ACCEPTABLE 8/18/91 CRIWS 18:53:39 SECNO DEPTH CWS EL ALOB ACH AROB TIME VLOB VCH SLOPE XLOBL XLCH * SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS HL OLOSS BANK ELEV VOL TWA LEFT /RIGHT WTN ELMIN SSTA CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.65 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY OF ACCEPTABLE RANGE, KRATIO CRIWS WSELK EG HV QROB ALOB ACH AROB VROB XNL XNCH XNR XLOBR ITRIAL IDC ICONT * SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS HL OLOSS BANK ELEV VOL TWA LEFT /RIGHT WTN ELMIN SSTA CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.65 * SECNO 2615.000 3302 WARNING: CROSS- SECTION TAKEN FROM G&M FIELD SURVEY OF ACCEPTABLE RANGE, KRATIO .67 2135.00 10.32 495.92 .00 .00 496.06 .13 .63 .13 499.70 2735. 0. 2735. 0. 0. 931. 0. 29. 5. 496.00 13 00 2.94 .00 .000 .050 .000 .000 485.60 1039.05 .001715 120. 175. 80. 3 0 0 .00 248.64 1287.69 * SECNO 2615.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO .67 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 10.56 499.06 .00 .00 2615.00 9.92 496.82 .00 .00 497.35 .53 1.18 .12 497.30 2735. 0. 2735. 0. 0. 469. 0. 36. 7. 497.20 16 00 5.83 .00 .000 .045 .000 .000 486.90 1077.47 .003778 460. 480. 270. 2 0 0 .00 92.86 1170.33 * SECNO 3125.000 * SECNO 3515.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 10.56 499.06 .00 .00 499.78 .72 2.37 .06 498.00 2735. 10. 2646. 78. 7. 383. 33. 42. S. 497.10 18 1.49 6.92 2.36 .050 .045 .050 .000 488.50 1041.74 .005901 390. 510. 440. 2 0 0 .00 129.47 1171.21 * SECNO 3515.000 t 1 1 PAGE 14 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 10.15 500.95 .00 .00 501.66 .71 1.87 .00 498.00 2735. 127. 2604. 4. 51. 377. 3. 45. 9. 500.00 19 2.50 6.92 1.13 .050 .045 .050 .000 490.80 1064.10 .004014 380. 390. 325. 2 0 0 .00 112.97 1177.06 t 1 1 PAGE 14 1 ) ) 1 1 ) 1 8/18/91 18:53:39 TI TRIBUTARY Gl OF GRAPEVINE CREEK - COPPELL, TEXAS - EXISTING CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 100 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIEXIST.DAT) DMG 8/91 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q -1 4 .0060 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 3 0 -1 WSEL 495.10 CHNIM 1 ) t PAGE 15 FQ ITRACE *PROF 3 CCHV= .300 CEHV= .500 .10 1.51 476.50 *SECNO 120.000 0. 8/18/91 .000 18:53:39 1094.00 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY SECNO DEPTH CWSEL CRIWS WSELK EG HV HL Q QLOB QCH QROB ALOB ACH AROB VOL TIME VLOB VCH VROB XNL XNCH XNR WTN SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR *PROF 3 CCHV= .300 CEHV= .500 .10 1.51 476.50 *SECNO 120.000 0. 474.50 .000 474.50 1094.00 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 120.00 10.88 484.38 .00 495.10 485.33 .95 3140. 0. 3140. 0. 0. 402. 0. 00 .00 7.82 .00 .000 .050 .000 .005994 0. 0. 0. 0 0 7 *SECNO 220.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 220.00 10.25 484.75 .00 .00 486.19 1.44 3140. 404. 2284. 451. 90. 209. 91. 00 4.51 10.92 4.95 .065 .050 .065 .006422 70. 100. 120. 2 0 0 *SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 7185 MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA= 230.00 9.11 483.61 483.61 .00 488.07 4.46 3140. 0. 3140. 0. 0. 185. 0. 00 00 16.95 00 .000 .050 .000 .018203 10. 10. 10. 4 11 0 SPECIAL BRIDGE 1 ) 1 ) ) PAGE 16 OLOSS BANK ELEV TWA LEFT /RIGHT ELMIN SSTA TOPWID ENDST .00 .00 488.80 0. 0. 487.20 .000 473.50 1175.15 .00 57.68 1232.83 .62 .25 476.50 1. 0. 474.50 .000 474.50 1072.25 .00 60.54 1132.79 5227 DOWNSTREAM ELEV IS 482.24 , NOT 483.61 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) SB XK XKOR COFQ RDLEN BWC BWP BARRA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 *SECNO 290.000 489.30 .10 1.51 476.50 1. 0. 474.50 .000 474.50 1094.00 .00 21.00 1115.00 5227 DOWNSTREAM ELEV IS 482.24 , NOT 483.61 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) SB XK XKOR COFQ RDLEN BWC BWP BARRA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 *SECNO 290.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.79 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID ELLC ELTRD WEIRLN AREA 489.58 488.53 .00 6. 3120. 200. 200. 484.50 489.30 65. 3495 OVERBANK AREA ASSUMED NON- EFFECTIVE, ELLEA= 490.00 ELREA- 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 12.79 487.29 .00 .00 489.51 2.22 1.44 .00 476.50 3140. 0. 3140. 0. 0. 263. 0. 1. 0. 474.50 00 00 11.96 00 .000 .050 .000 .000 474.50 1094.00 .005690 60. 60. 60. 3 0 2 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.96 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 15.01 489.81 00 00 490.19 38 .13 .55 488.20 3140. 61. 3065. 14. 63. 613. 14. 2. 0. 487.40 .01 .96 5.00 .98 .065 .050 .065 .000 474.80 1005.05 .001478 50. 50. 50. 3 0 0 .00 131.70 1136.75 CCHV- .100 CEHV= .300 * SECNO 560.000 3301 HV CHANGED MORE THAN HVINS 1 ) 1 ) 1 f ) ) 1 8/18/91 18:53:39 PAGE 17 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.79 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID ELLC ELTRD WEIRLN AREA 489.58 488.53 .00 6. 3120. 200. 200. 484.50 489.30 65. 3495 OVERBANK AREA ASSUMED NON- EFFECTIVE, ELLEA= 490.00 ELREA- 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 12.79 487.29 .00 .00 489.51 2.22 1.44 .00 476.50 3140. 0. 3140. 0. 0. 263. 0. 1. 0. 474.50 00 00 11.96 00 .000 .050 .000 .000 474.50 1094.00 .005690 60. 60. 60. 3 0 2 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.96 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 15.01 489.81 00 00 490.19 38 .13 .55 488.20 3140. 61. 3065. 14. 63. 613. 14. 2. 0. 487.40 .01 .96 5.00 .98 .065 .050 .065 .000 474.80 1005.05 .001478 50. 50. 50. 3 0 0 .00 131.70 1136.75 CCHV- .100 CEHV= .300 * SECNO 560.000 3301 HV CHANGED MORE THAN HVINS 1 ) ) 14.49 1 ) ) 494.01 1 ) ) ) 1 8/18/91 18:53:39 493.40 3140. 0. 2989. 150. 1. PAGE 18 SECNO DEPTH CWSEL CRIWS WSELR EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 560.00 9.65 489.85 489.85 .00 493.00 3.15 .84 .83 494.20 3140. 0. 3140. 0. 0. 221. 0. 4. 1. 490.10 O1 .00 14.24 .00 .000 .050 .000 .000 480.20 1133.65 .025239 150. 220. 300. 20 15 0 .00 35.99 1169.64 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 6.04 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 770.00 13.38 493.58 .00 .00 493.73 .15 .43 .30 493.90 3140. 0. 2977. 163. 0. 931. 185. 7. 1. 490.20 03 .00 3.20 .88 .000 .050 .065 .000 480.20 1035.81 .000692 200. 210. 160. 2 0 0 .00 231.70 1267.51 * SECNO 945.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 945.00 15.12 493.72 .00 .00 493.88 .16 .15 .00 490.90 3140. 11. 3127. 2. 11. 968. 9. 11. 2. 493.40 .05 .96 3.23 .25 .065 .050 .065 .000 478.60 1099.00 .001194 215. 175. 30. 2 0 0 .00 231.09 1330.10 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.57 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1120.00 14.49 493.89 .00 .00 494.01 .12 .12 .00 493.40 3140. 0. 2989. 150. 1. 1054. 232. 15. 3. 490.00 06 .19 2.84 .65 .065 .050 .065 .000 479.40 1245.38 .000482 315. 175. 30. 0 0 0 .00 309.25 1554.63 8/18/91 18 :53 :39 PAGE 19 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *SECNO 1280.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .33 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1280.00 12.56 493.76 .00 .00 494.32 .56 .17 .13 493.40 3140. 6. 3064. 70. 11. 505. 50. 19. 3. 492.00 07 51 6.07 1.40 .065 .050 .065 .000 481.20 1196.38 .004434 140. 160. 120. 2 0 0 .00 210.75 1407.13 *SECNO 1450.000 CROSS- SECTION TAKEN FROM 2' TOPO GENERATED FROM FIELD SURVEYS 1450.00 13.39 494.39 .00 .00 494.89 .50 .57 .01 490.00 3140. 24. 3116. 0. 22. 547. 0. 21. 4. 500.00 08 1.10 5.70 00 .065 .050 .000 .000 481.00 1260.37 .002608 140. 170. 240. 2 0 0 .00 130.60 1390.98 CCHV= .100 CEHV-- .300 *SECNO 1760.000 3265 DIVIDED FLOW 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.06 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1760.00 12.36 495.16 .00 00 495.28 .11 .35 .04 494.90 3140. 14. 3126. 0. 45. 1148. 0. 27. 5. 495.20 .11 31 2.72 00 .055 .050 .000 .000 482.80 1071.97 .000617 140. 310. 350. 2 0 0 .00 315.37 1426.92 *SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO .25 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1960.00 9.84 494.64 .00 .00 495.95 1.31 .32 .36 496.60 3140. 0. 2939. 201. 0. 312. 56. 31. 6. 493.10 12 00 9.43 3.61 .000 .050 .055 .000 484.80 1161.01 .010085 170. 200. 220. 3 0 0 .00 89.40 1250.40 1 ) 1 PAGE 20 8/18/91 18:53:39 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELKIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.62 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 2135.00 10.86 496.46 .00 .00 496.60 .13 .53 .12 499.70 3140. 0. 3138. 2. 0. 1065. 4. 33. 7. 496.00 .13 .00 2.95 .39 .000 .050 .055 .000 485.60 1038.48 .001467 120. 175. 80. 2 0 0 .00 270.88 1309.36 *SECNO 2615.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .61 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 2615.00 10.33 497.23 .00 .00 497.83 .60 1.09 .14 497.30 3140. 0. 3140. 0. 0. 507. 0. 42. 9. 497.20 .15 .00 6.19 .02 .000 .045 .000 .000 486.90 1075.34 .003994 460. 480. 270. 2 0 0 .00 95.94 1171.28 *SECNO 3125.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 11.00 499.50 .00 .00 500.25 .75 2.37 .05 498.00 3140. 25. 2977. 138. 14. 418. 50. 48. 10. 497.10 .17 1.82 7.12 2.76 .050 .045 .050 .000 488.50 1036.28 .005541 390. 510. 440. 2 0 0 .00 143.66 1179.94 *SECNO 3515.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 10.53 501.33 .00 .00 502.12 .79 1.86 .01 498.00 3140. 192. 2938. 10. 71. 400. 7. 52. 11. 500.00 .19 2.72 7.35 1.46 .050 .045 .050 .000 490.80 1053.48 .004188 380. 390. 325. 2 0 0 .00 126.48 1179.96 1 ) 1 PAGE 20 � r PAGE 21 8/18/91 18 :53:39 Tl TRIBUTARY G1 OF GRAPEVINE CREEK - COPPELL, TEXAS - EXISTING CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 500 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIEXIST.DAT) DMG 8/91 Jl ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ -1 5 .0060 495.10 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM ITRACE 4 0 15 � r PAGE 21 8/18/91 18:53:39 PAGE 22 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL GLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *PROF 4 CCHV= .300 CEHV= .500 * SECNO 120.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 120.00 12.46 485.96 .00 495.10 487.08 1.12 .00 .00 488.80 4210. 0. 4210. 0. 0. 496. 0. 0. 0. 487.20 .00 .00 8.49 .00 .000 .050 .000 .000 473.50 1172.60 .005905 0. 0. 0. 0 0 6 .00 61.44 1234.04 * SECNO 220.000 3301 HV CHANGED MORE THAN HVINS CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 220.00 11.78 486.28 .00 .00 487.98 1.70 .61 .29 476.50 4210. 640. 2913. 658. 126. 241. 121. 1. 0. 474.50 .00 5.07 12.06 5.46 .065 .050 .065 .000 474.50 1068.21 .006478 70. 100. 120. 2 0 0 .00 67.25 1135.46 * SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA- 489.30 ELREA- 489.30 230.00 11.01 485.51 485.51 .00 490.94 5.42 .10 1.86 476.50 4210. 0. 4210. 0. 0. 225. 0. 1. 0. 474.50 .00 .00 18.69 .00 .000 .050 .000 .000 474.50 1094.00 .017061 10. 10. 10. 20 11 0 .00 21.00 1115.00 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 483.91 , NOT 485.51 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) SB XK XKOR COFQ RDLEN BWC BWP BAREA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 * SECNO 290.000 3280 CROSS SECTION 290.00 EXTENDED 1.59 FEET 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 3.73 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BARRA TRAPEZOID AREA ELLC ELTRD 8/18/91 491.52 18:53 :39 1065. 3146. 200. 200. 484.50 PAGE 23 SECNO DEPTH CWSEL CRIWS WSELR EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 483.91 , NOT 485.51 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) SB XK XKOR COFQ RDLEN BWC BWP BAREA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 * SECNO 290.000 3280 CROSS SECTION 290.00 EXTENDED 1.59 FEET 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 3.73 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BARRA TRAPEZOID AREA ELLC ELTRD 496.25 491.52 .00 1065. 3146. 200. 200. 484.50 489.30 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 16.59 491.09 .00 .00 491.51 .42 .57 .00 476.50 4210. 1139. 2267. 804. 432. 342. 272. 2. 0. 474.50 .01 2.63 6.62 2.95 .065 .050 .065 .000 474.50 1000.00 .001226 60. 60. 60. 2 0 4 .00 160.00 1160.00 * SECNO 340.000 3280 CROSS SECTION 340.00 EXTENDED 1.13 FEET CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 16.33 491.13 .00 .00 491.60 .47 .07 .02 488.20 4210. 238. 3925. 47. 149. 693. 34. 3. 0. 487.40 .01 1.60 5.67 1.37 .065 .050 .065 .000 474.80 1000.00 .001617 50. 50. 50. 2 0 0 .00 143.19 1143.19 CCHV- .100 CEHV- .300 * SECNO 560.000 WEIRLN 200. * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 4.84 CROSS- SECTION TAKEN FROM G&M FIELD 8/18/91 18:53:39 770.00 14.75 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS .000672 200. 210. 160. 2 0 3685 20 TRIALS ATTEMPTED WSEL,CWSEL .00 322.47 1353.29 * SECNO 945.000 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED FROM G&M FIELD SURVEY CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 495.08 00 00 495.25 560.00 12.38 492.58 492.58 .00 494.56 1.97 .82 .45 494.20 4210. 0. 3962. 248. 0. 342. 71. 6. 1. 490.10 Ol 00 11.59 3.48 .000 .050 .065 .000 480.20 1114.05 .015765 150. 220. 300. 20 15 0 .00 120.06 1234.11 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 4.84 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 770.00 14.75 494.95 .00 .00 495.12 17 38 .18 493.90 4210. 1. 3752. 458. 2. 1083. 403. 11. 2. 490.20 03 38 3.47 1.14 .065 .050 .065 .000 480.20 1030.82 .000672 200. 210. 160. 2 0 0 .00 322.47 1353.29 * SECNO 945.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 945.00 16.48 495.08 00 00 495.25 17 13 .00 490.90 4210. 28. 4044. 138. 25. 1199. 169. 16. 3. 493.40 05 1.13 3.37 81 .065 .050 .065 .000 478.60 1095.16 .000979 215. 175. 30. 2 0 0 .00 339.65 1434.81 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.43 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1120.00 15.83 495.23 00 .00 495.36 .13 11 .00 493.40 4210. 7. 3715. 487. 16. 1202. 526. 21. 4. 490.00 .06 .47 3.09 93 .065 .050 .065 .000 479.40 1232.64 .000481 315. 175. 30. 0 0 0 .00 365.97 1598.62 PAGE 24 * SECNO 1280.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .40 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1280.00 13.95 495.15 00 00 495.62 46 15 .10 8/18/91 4210. 18:53:39 3668. 304. 161. 631. 152. 25. SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST * SECNO 1280.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .40 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 1280.00 13.95 495.15 00 00 495.62 46 15 .10 493.40 4210. 238. 3668. 304. 161. 631. 152. 25. S. 492.00 07 1.48 5.82 2.00 .065 .050 .065 .000 481.20 1109.22 .003033 140. 160. 120. 2 0 0 .00 325.95 1435.17 * SECNO 1450.000 * SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .26 CROSS- SECTION TAKEN FROM 2' TOPO GENERATED FROM FIELD SURVEYS 1450.00 14.56 495.56 .00 .00 496.15 .59 .50 .04 490.00 4210. 214. 3996. 0. 187. 631. 0. 29. 6. 500.00 .08 1.14 6.33 .00 .065 .050 .000 .000 481.00 1096.53 .002801 140. 170. 240. 2 0 0 .00 297.37 1393.90 CCHV= .100 CEHV= .300 * SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.19 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1760.00 13.60 496.40 .00 00 496.53 13 33 .05 494.90 4210. 256. 3948. 6. 320. 1343. 11. 37. 7. 495.20 11 80 2.94 50 .055 .050 .055 .000 482.80 1026.98 .000584 140. 310. 350. 2 0 0 .00 421.45 1448.43 * SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .26 1 1 1 PAGE 25 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 1960.00 11.06 495.86 .00 .00 497.19 1.33 .30 .36 496.60 4210. 0. 3669. 541. 0. 376. 123. 42. 9. 493.10 .11 .00 9.76 4.39 .000 .050 .055 .000 484.80 1159.14 .008858 170. 200. 220. 3 0 0 .00 128.41 1287.55 1 1 1 PAGE 25 *SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.73 CROSS - SECTION TAKEN FROM G&M FIELD CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 8/18/91 .00 .00 503.16 18:53:39 2135.00 11.99 497.59 .00 .00 497.73 .15 .43 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.73 CROSS - SECTION TAKEN FROM G&M FIELD CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 502.18 .00 .00 503.16 .97 2135.00 11.99 497.59 .00 .00 497.73 .15 .43 .12 499.70 4210. 0. 4167. 43. 0. 1350. 53. 45. 9. 496.00 .13 .00 3.09 .80 .000 .050 .055 .000 485.60 1037.27 .001185 120. 175. 80. 3 0 0 .00 320.10 1357.37 *SECNO 2615.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .53 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 11.38 502.18 .00 .00 503.16 .97 2615.00 11.22 498.12 .00 .00 498.90 .78 .97 .19 497.30 4210. 8. 4198. 4. 7. 592. 3. 56. 12. 497.20 .15 1.16 7.09 1.15 .050 .045 .050 .000 486.90 1057.94 .004286 460. 480. 270. 3 0 0 .00 120.31 1178.25 *SECNO 3125.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 11.94 500.44 .00 .00 501.26 .82 2.35 .01 498.00 4210. 98. 3774. 339. 37. 496. 102. 63. 13. 497.10 .17 2.65 7.61 3.33 .050 .045 .050 .000 488.50 1026.69 .005055 390. 510. 440. 2 0 0 .00 183.19 1209.87 *SECNO 3515.000 1 PAGE 26 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 11.38 502.18 .00 .00 503.16 .97 1.85 .04 498.00 4210. 422. 3748. 40. 129. 451. 18. 69. 15. 500.00 .18 3.27 8.31 2.20 .050 .045 .050 .000 490.80 1031.77 .004554 380. 390. 325. 2 0 0 .00 156.93 1188.70 1 PAGE 26 8/18/91 18:53:39 PAGE 27 ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 THIS RUN EXECUTED 8/18/91 18:53 :56 ERROR CORR - 01,02 MODIFICATION - ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** NOTE- ASTERISK ( *) AT LEFT OF CROSS - SECTION NUMBER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST YEAR EVENT - GOODWIN AND SUMMARY PRINTOUT SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELKIN SSTA ENDST TOPWID 120.000 1860.00 482.19 482.87 .00 6.61 1168.00 1235.00 473.50 1178.69 1231.15 52.46 120.000 2735.00 483.77 484.63 .00 7.45 1168.00 1235.00 473.50 1176.13 1232.36 56.23 120.000 3140.00 484.38 485.33 .00 7.82 1168.00 1235.00 473.50 1175.15 1232.83 57.68 120.000 4210.00 485.96 487.08 .00 8.49 1168.00 1235.00 473.50 1172.60 1234.04 61.44 220.000 1860.00 482.62 483.62 .00 8.85 1094.00 1115.00 474.50 1077.87 1129.10 51.23 220.000 2735.00 484.15 485.46 .00 10.32 1094.00 1115.00 474.50 1073.82 1131.76 57.93 220.000 3140.00 484.75 486.19 .00 10.92 1094.00 1115.00 474.50 1072.25 1132.79 60.54 220.000 4210.00 486.28 487.98 .00 12.06 1094.00 1115.00 474.50 1068.21 1135.46 67.25 * 230.000 1860.00 482.05 484.36 .00 12.20 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 2735.00 482.92 486.89 482.84 16.01 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 3140.00 483.61 488.07 483.61 16.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 4210.00 485.51 490.94 485.51 18.69 1094.00 1115.00 474.50 1094.00 1115.00 21.00 290.000 1860.00 482.77 484.68 .00 11.09 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 2735.00 484.84 487.45 .00 12.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 3140.00 487.29 489.51 .00 11.96 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 4210.00 491.09 491.51 .00 6.62 1094.00 1115.00 474.50 1000.00 1160.00 160.00 * 340.000 1860.00 484.88 485.37 .00 5.63 1065.00 1125.00 474.80 1070.35 1121.68 51.33 * 340.000 2735.00 487.82 488.29 .00 5.54 1065.00 1125.00 474.80 1065.62 1127.01 61.38 * 340.000 3140.00 489.81 490.19 .00 5.00 1065.00 1125.00 474.80 1005.05 1136.75 131.70 340.000 4210.00 491.13 491.60 .00 5.67 1065.00 1125.00 474.80 1000.00 1143.19 143.19 * 560.000 1860.00 487.63 490.11 487.63 12.65 1100.00 1170.00 480.20 1136.31 1166.39 30.08 * 560.000 2735.00 489.27 492.18 489.27 13.68 1100.00 1170.00 480.20 1134.35 1168.79 34.43 * 560.000 3140.00 489.85 493.00 489.85 14.24 1100.00 1170.00 480.20 1133.65 1169.64 35.99 * 560.000 4210.00 492.58 494.56 492.58 11.59 1100.00 1170.00 480.20 1114.05 1234.11 120.06 * 770.000 1860.00 490.75 490.88 .00 2.94 1035.00 1145.00 480.20 1042.68 1154.73 112.05 * 770.000 2735.00 492.76 492.91 .00 3.16 1035.00 1145.00 480.20 1037.79 1244.02 206.23 * 770.000 3140.00 493.58 493.73 .00 3.20 1035.00 1145.00 480.20 1035.81 1267.51 231.70 * 770.000 4210.00 494.95 495.12 .00 3.47 1035.00 1145.00 480.20 1030.82 1353.29 322.47 1 } 1 ) ) 1 1 1 ) 1 8/18/91 18:53:39 PAGE 28 SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELMIN SETA ENDST TOPWID * 945.000 1860.00 490.94 491.12 .00 3.39 1107.00 1277.00 478.60 1106.90 1232.66 125.76 945.000 2735.00 492.92 493.09 .00 3.27 1107.00 1277.00 478.60 1101.26 1268.49 167.22 945.000 3140.00 493.72 493.88 .00 3.23 1107.00 1277.00 478.60 1099.00 1330.10 231.09 945.000 4210.00 495.08 495.25 .00 3.37 1107.00 1277.00 478.60 1095.16 1434.81 339.65 * 1120.000 1860.00 491.19 491.28 .00 2.44 1250.00 1360.00 479.40 1254.58 1374.74 120.16 * 1120.000 2735.00 493.11 493.23 .00 2.76 1250.00 1360.00 479.40 1250.60 1484.60 234.00 * 1120.000 3140.00 493.89 494.01 .00 2.84 1250.00 1360.00 479.40 1245.38 1554.63 309.25 * 1120.000 4210.00 495.23 495.36 .00 3.09 1250.00 1360.00 479.40 1232.64 1598.62 365.97 * 1280.000 1860.00 491.00 491.65 .00 6.48 1260.00 1350.00 481.20 1280.29 1341.67 61.39 * 1280.000 2735.00 492.96 493.56 .00 6.26 1260.00 1350.00 481.20 1263.99 1381.23 117.24 * 1280.000 3140.00 493.76 494.32 .00 6.07 1260.00 1350.00 481.20 1196.38 1407.13 210.75 * 1280.000 4210.00 495.15 495.62 .00 5.82 1260.00 1350.00 481.20 1109.22 1435.17 325.95 * 1450.000 1860.00 491.99 492.36 .00 4.84 1320.00 1400.00 481.00 1318.01 1384.99 66.98 * 1450.000 2735.00 493.74 494.20 .00 5.44 1320.00 1400.00 481.00 1315.39 1389.35 73.96 1450.000 3140.00 494.39 494.89 .00 5.70 1320.00 1400.00 481.00 1260.37 1390.98 130.60 1450.000 4210.00 495.56 496.15 .00 6.33 1320.00 1400.00 481.00 1096.53 1393.90 297.37 * 1760.000 1860.00 492.69 492.78 .00 2.40 1270.00 1427.00 482.80 1277.59 1422.03 144.44 * 1760.000 2735.00 494.48 494.58 .00 2.63 1270.00 1427.00 482.80 1271.45 1425.57 154.12 * 1760.000 3140.00 495.16 495.28 .00 2.72 1270.00 1427.00 482.80 1071.97 1426.92 315.37 * 1760.000 4210.00 496.40 496.53 .00 2.94 1270.00 1427.00 482.80 1026.98 1448.43 421.45 * 1960.000 1860.00 492.03 493.64 .00 10.19 1158.00 1213.00 484.80 1165.02 1221.39 45.91 * 1960.000 2735.00 493.92 495.31 .00 9.61 1158.00 1213.00 484.80 1162.12 1242.34 80.22 * 1960.000 3140.00 494.64 495.95 .00 9.43 1158.00 1213.00 484.80 1161.01 1250.40 89.40 * 1960.000 4210.00 495.86 497.19 .00 9.76 1158.00 1213.00 484.80 1159.14 1287.55 128.41 * 2135.000 1860.00 494.57 494.70 .00 2.99 1035.00 1290.00 485.60 1040.50 1246.94 206.44 * 2135.000 2735.00 495.92 496.06 .00 2.94 1035.00 1290.00 485.60 1039.05 1287.69 248.64 * 2135.000 3140.00 496.46 496.60 .00 2.95 1035.00 1290.00 485.60 1038.48 1309.36 270.88 * 2135.000 4210.00 497.59 497.73 .00 3.09 1035.00 1290.00 485.60 1037.27 1357.37 320.10 2615.000 1860.00 495.74 496.13 .00 5.00 1075.00 1171.00 486.90 1083.21 1168.36 85.15 * 2615.000 2735.00 496.82 497.35 .00 5.83 1075.00 1171.00 486.90 1077.47 1170.33 92.86 * 2615.000 3140.00 497.23 497.83 .00 6.19 1075.00 1171.00 486.90 1075.34 1171.28 95.94 * 2615.000 4210.00 498.12 498.90 .00 7.09 1075.00 1171.00 486.90 1057.94 1178.25 120.31 * 3125.000 1860.00 497.95 498.58 .00 6.34 1055.00 1137.00 488.50 1056.93 1151.70 94.77 3125.000 2735.00 499.06 499.78 .00 6.92 1055.00 1137.00 488.50 1041.74 1171.21 129.47 3125.000 3140.00 499.50 500.25 .00 7.12 1055.00 1137.00 488.50 1036.28 1179.94 143.66 3125.000 4210.00 500.44 501.26 .00 7.61 1055.00 1137.00 488.50 1026.69 1209.87 183.19 * 3515.000 1860.00 499.94 500.45 .00 5.77 1110.00 1170.00 490.80 1090.56 1169.86 79.30 3515.000 2735.00 500.95 501.66 .00 6.92 1110.00 1170.00 490.80 1064.10 1177.06 112.97 3515.000 3140.00 501.33 502.12 .00 7.35 1110.00 1170.00 490.80 1053.48 1179.96 126.48 3515.000 4210.00 502.18 503.16 .00 8.31 1110.00 1170.00 490.80 1031.77 1188.70 156.93 8/18/91 18:53:39 SUMMARY OF ERRORS AND SPECIAL NOTES WARNING SECNO= 230.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 230.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 230.000 PROFILE= 3 CRITICAL DEPTH ASSUMED 560.000 CAUTION SECNO= 230.000 PROFILE= 3 MINIMUM SPECIFIC ENERGY PROFILE- CAUTION SECNO= 230.000 PROFILE= 4 CRITICAL DEPTH ASSUMED 2 CAUTION SECNO= 230.000 PROFILE= 4 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 230.000 PROFILE= 4 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 290.000 PROFILE= 2 HYDRAULIC JUMP D.S. CAUTION WARNING SECNO= 290.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 290.000 PROFILE= 3 HYDRAULIC JUMP D.S. 560.000 WARNING SECNO= 290.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 290.000 PROFILE= 4 HYDRAULIC JUMP D.S. 1120.000 WARNING SECNO= 290.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 560.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE- 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 3 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 3 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE- 3 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 4 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 4 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO- 560.000 PROFILE= 4 20 TRIALS ATTEMPTED TO BALANCE WSEL WARNING SECNO= 770.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 770.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 770.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 770.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 945.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1120.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1120.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE- 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1280.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE- 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1450.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1450.000 PROFILE- 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PAGE 29 8/18/91 WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO- WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO- WARNING SECNO= WARNING SECNO= 18:53:39 1760.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE- 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 3125.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 3515.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 PAGE 30 APPENDa C TRIBUTARY G-1 PROPOSED IMPROVED CONDITIONS HYDRAULIC MODEL AND RESULTS 8/19/91 15 :47:21 1 ► PAGE THIS RUN EXECUTED 8/19/91 15:47:21 WSEL PQ 492.40 CHNIM ITRACE 22 42 53 1190 473.5 1240 492 HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 1100 489.3 ERROR CORR - 01,02 MODIFICATION - T1 TRIBUTARY G1 OF GRAPEVINE CREEK - COPPELL, TEXAS - PROPOSED IMP. CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 10 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIIMPR.DAT) - DMG 8/91 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q -1 2 0.006 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 1 0 -1 J3 VARIABLE CODES FOR SUMMARY PRINTOUT 38 43 1 3 2 26 21 54 4 QT 4 1860 2735 3140 4210 NC .065 .065 .05 0.3 0.5 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 120 11 1168 1235 0 0 0 GR 492 1000 490.5 1118 488.8 1168 475.2 GR 476.4 1208 478.1 1228 487.2 1235 490 GR 492.5 1330 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 220 8 1094 1115 70 120 100 GR 490 1000 488.9 1015 487.5 1065 476.5 GR 474.5 1115 488.9 1140 489.5 1160 X1 230 0 0 0 10 10 10 X3 10 SB 1.25 1.56 2.6 0 20.7 0.7 200 STATION 2 +60 BETHEL SCHOOL ROAD Xi 290 0 0 0 60 60 60 X2 1 484.5 489.3 X3 10 BT 5 1000 491.5 0 1050 490.0 0 BT 1150 489.5 0 1200 490.4 0 1 ► PAGE THIS RUN EXECUTED 8/19/91 15:47:21 WSEL PQ 492.40 CHNIM ITRACE 22 42 53 1190 473.5 1240 492 1094 474.5 489.3 489.3 0.0 474.5 490.0 490.0 1100 489.3 1200 1270 1100 474.5 0 ► 1 8/19/91 15:47:21 PAGE 2 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 340 9 1065 1125 50 50 50 GR 490 1000 488.1 1050 488.2 1065 477.0 1083 474.8 1093 GR 476.9 1100 477.5 1112 487.4 1125 491.5 1145 NC 0 0 0 0.1 0.3 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 560 16 1100 1170 150 300 220 GR 494.3 1000 497.1 1050 494.3 1080 494.2 1100 490.4 1133 GR 481.2 1144 480.2 1150 480.5 1156 490.1 1170 492.3 1220 GR 492.9 1250 493.9 1300 495.2 1350 496 1370 498 1395 GR 500 1405 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 770 16 1035 1145 200 160 210 GR 499.8 1000 498.9 1015 493.9 1035 489.8 1045 483.1 1065 GR 480.2 1075 482.6 1085 482.9 1105 486.7 1135 490.2 1145 GR 491.9 1175 492.1 1225 494 1280 496 1435 498 1450 GR 500 1480 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS X1 945 17 1116 1277 215 30 175 GR 504.2 1000 503.0 1050 501.5 1077 496.0 1095 496.0 1116 GR 483.6 1140 478.6 1150 483.1 1160 485.9 1185 489.4 1205 GR 493.4 1277 493.7 1327 494.3 1400 495.2 1440 496 1530 GR 498 1545 500 1570 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS X1 1120 18 1250 1360 315 30 175 GR 501.1 1000 499.3 1050 497.4 1100 497.0 1150 497.0 1200 GR 497.0 1240 493.4 1250 483.7 1270 483.7 1290 479.4 1300 GR 483.4 1307 483.0 1350 490 1360 492 1385 494 1565 GR 496 1620 498.0 1640 500.0 1660 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS %i 1280 20 1260 1350 140 120 160 GR 500 1000 498 1025 497.0 1050 497.0 1100 497.0 1150 GR 497.0 1200 497.0 1250 497.0 1260 491.2 1280 484.3 1290 GR 483.2 1295 481.2 1300 482.6 1306 487.4 1320 490.2 1335 GR 492.0 1350 494 1415 496 1450 498 1460 500 1480 CROSS - SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS X1 1450 21 1320 1400 140 240 170 GR 500 1000 498 1020 498 1300 494 1312 492 1318 GR 490 1320 488 1330 486 1335 484 1350 482 1355 GR 481 1360 482 1361 484 1365 486 1370 488 1375 GR 490 1380 492 1385 494 1390 496 1395 498 1398 GR 500 1400 f ) ) 1 PAGE 3 310 497.0 1100 497.0 8/19/91 15:47:21 487.6 1335 486.9 NC .055 .055 .05 0.1 0.3 NTS CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEML X1 1760 18 1307 1427 140 350 GR 500 1000 498 1015 497 1030 GR 497.0 1200 497.0 1250 497.0 1307 GR 485.6 1396 482.8 1400 485.2 1402 GR 495.9 1437 498.1 1487 499.1 1500 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEME X1 1960 15 1158 1213 170 220 GR 500 1000 498.2 1123 498.0 1158 GR 484.8 1186 485.8 1189 488.4 1201 GR 494.7 1251 495.8 1286 497.0 1316 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY %1 2135 13 1035 1290 120 80 GR 501 1000 499.7 1035 488.5 1047 GR 487.4 1064 490.2 1074 490.0 1090 GR 496 1290 498 1375 500 1420 NC .05 .05 .045 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 2615 14 1075 1171 460 270 GR 502 1000 500 1025 498 1060 GR 490.4 1140 488.5 1145 486.9 1150 GR 499.1 1186 500 1230 502 1270 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 3125 16 1055 1137 390 440 GR 504 1000 502 1015 500 1030 GR 492.3 1095 490.2 1099 488.5 1104 GR 493.8 1127 497.1 1137 498.9 1168 GR 504 1360 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 3515 16 1110 1170 380 325 GR 504 1000 502 1035 500 1090 GR 494 1130 492 1135 490.8 1145 GR 496 1160 498 1165 500 1170 GR 506 1270 f ) ) 1 PAGE 3 310 497.0 1100 497.0 1150 487.6 1335 486.9 1355 487.6 1412 495.2 1427 NTS 200 1055 497.4 1080 490.1 1168 485.6 1183 493.1 1213 492.0 1221 498.4 1386 499.2 1436 175 1110 496 1120 486.3 1057 485.6 1060 492 1150 494 1230 480 497.3 1075 491.6 1105 488.9 1156 497.2 1171 504 1340 510 498 1055 497.4 1080 490.2 1110 492.3 1115 500 1190 502 1280 390 498 1110 496 1120 492 1150 494 1153 502 1185 504 1225 SPECIAL BRIDGE SB XK XKOR COFQ RDLEN BWC BWP BARBA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 * SECNO 290.000 ► PAGE 4 8/19/91 15 :47:21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *PROF 1 CCHV= .300 CEHV= .500 * SECNO 120.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 120.00 8.69 482.19 .00 492.40 482.87 .68 .00 .00 488.80 1860. 0. 1860. 0. 0. 281. 0. 0. 0. 487.20 .00 .00 6.61 .00 .000 .050 .000 .000 473.50 1178.69 .005916 0. 0. 0. 0 0 6 .00 52.46 1231.15 * SECNO 220.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 220.00 8.12 482.62 .00 .00 483.62 1.00 .59 .16 476.50 1860. 173. 1456. 231. 49. 165. 57. 1. 0. 474.50 .00 3.51 8.85 4.03 .065 .050 .065 .000 474.50 1077.87 .005816 70. 100. 120. 2 0 0 .00 51.23 1129.10 * SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - .69 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA= 489.30 230.00 7.55 482.05 .00 .00 484.36 2.31 .08 .65 476.50 1860. 0. 1860. 0. 0. 152. 0. 1. 0. 474.50 .00 .00 12.20 .00 .000 .050 .000 .000 474.50 1094.00 .012231 10. 10. 10. 3 0 0 .00 21.00 1115.00 SPECIAL BRIDGE SB XK XKOR COFQ RDLEN BWC BWP BARBA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 * SECNO 290.000 ► PAGE 4 PAGE 5 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST CLASS A LOW FLOW 3420 BRIDGE W.S.= 481.50 BRIDGE VELOCITY= 13.29 CALCULATED CHANNEL AREA= 140. EGPRS EGLWC H3 QWEIR QLOW BAREA TRAPEZOID AREA ELLC ELTRD WEIRLN 484.14 484.68 .73 0. 1860. 200. 200. 484.50 489.30 0. 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA-- 490.00 ELREA= 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 8.27 482.77 .00 .00 484.68 1.91 .33 .00 476.50 1860. 0. 1860. 0. 0. 168. 0. 1. 0. 474.50 .01 .00 11.09 .00 .000 .050 .000 .000 474.50 1094.00 .008904 60. 60. 60. 0 0 0 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.61 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 340.00 10.08 484.88 .00 .00 485.37 .49 .26 .43 488.20 1860. 0. 1860. 0. 0. 330. 0. 1. 0. 487.40 .01 .00 5.63 .00 .000 .050 .000 .000 474.80 1070.35 .003416 50. 50. 50. 3 0 0 .00 51.33 1121.68 CCHV= .100 CEHV= .300 * SECNO 560.000 3301 HV CHANGED MORE THAN HVINS 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 560.00 7.43 487.63 487.63 .00 490.11 2.49 1.63 .60 494.20 1860. 0. 1860. 0. 0. 147. 0. 2. 0. 490.10 .O1 .00 12.65 .00 .000 .050 .000 .000 480.20 1136.31 .026466 150. 220. 300. 20 19 0 .00 30.08 1166.39 PAGE 5 1 8/19/91 15 :47:21 SECNO DEPTH CWSEL Q QLOB QCH TIME VLOB VCH SLOPE XLOBL XLCH 1 ) 1 CRIWS WSELK EG HV HL QROB ALOB ACH AROB VOL VROB XNL XNCH XNR WTN XLOBR ITRIAL IDC ICONT CORAR * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 1 ) 1 PAGE 6 OLOSS BANK ELEV TWA LEFT /RIGHT ELMIN SSTA TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.45 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 770.00 10.55 490.75 .00 .00 490.88 .13 .53 .24 493.90 1860. 0. 1859. 1. 0. 633. 3. 4. 1. 490.20 .03 .00 2.94 .29 .000 .050 .065 .000 480.20 1042.68 .000890 200. 210. 160. 3 0 0 .00 112.05 1154.73 * SECNO 945.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .65 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 945.00 12.32 490.92 .00 .00 491.14 .22 .23 .02 496.00 1860. 0. 1860. 0. 0. 498. 0. 7. 1. 493.40 .05 .00 3.74 .00 .000 .050 .000 .000 478.60 1125.82 .002137 215. 175. 30. 2 0 0 .00 106.60 1232.43 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 2.05 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1120.00 11.82 491.22 .00 .00 491.31 .09 .16 .01 493.40 1860. 0. 1857. 3. 0. 766. 9. 9. 2. 490.00 .07 .00 2.42 .37 .000 .050 .065 .000 479.40 1254.49 .000508 315. 175. 30. 2 0 0 .00 120.77 1375.26 * SECNO 1280.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .28 *SECNO 1450.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.56 CROSS - SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS CROSS - SECTION TAKEN 1450.00 8/19/91 15:47:21 .00 .00 492.37 .36 PAGE 7 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 0. 1280.00 9.83 491.03 .00 .00 491.68 .64 20 .17 497.00 1860. 0. 1860. 0. 0. 289. 0. 11. 2. 492.00 07 00 6.43 00 .000 .050 .000 .000 481.20 1280.24 .006471 140. 160. 120. 2 0 0 .00 61.74 1341.97 *SECNO 1450.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.56 *SECNO 1960.000 3265 DIVIDED FLOW 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CROSS - SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS CROSS - SECTION TAKEN 1450.00 11.01 492.01 .00 .00 492.37 .36 .67 .03 490.00 1860. 2. 1858. 0. 2. 385. 0. 12. 2. 500.00 08 94 4.83 00 .065 .050 .000 .000 481.00 1317.96 .002652 140. 170. 240. 2 0 0 .00 67.07 1385.03 CCHV= .100 CEHV= .300 *SECNO 1760.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1760.00 10.00 492.80 .00 .00 492.97 .17 57 .02 497.00 1860. 0. 1860. 0. 0. 562. 0. 16. 3. 495.20 11 00 3.31 00 .000 .050 .000 .000 482.80 1319.53 .001361 140. 310. 350. 2 0 0 .00 102.72 1422.25 *SECNO 1960.000 3265 DIVIDED FLOW 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .33 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1960.00 7.91 492.71 .00 .00 493.88 1.17 .62 .30 498.00 1860. 0. 1853. 7. 0. 213. 5. 18. 3. 493.10 .11 00 8.70 1.51 .000 .050 .055 .000 484.80 1164.69 .012472 170. 200. 220. 3 0 0 .00 60.39 1228.90 *SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS *SECNO 2615.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 2615.00 8.85 495.75 .00 .00 496.14 .39 1.30 .08 497.30 1860. 0. 1860. 0. 0. 373. 0. 25. 5. 497.20 16 00 4.99 00 .000 .045 .000 .000 486.90 1083.15 .003341 460. 480. 270. 3 0 0 .00 85.24 1168.38 *SECNO 3125.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .70 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 9.46 497.96 .00 .00 498.58 .62 2.37 .07 498.00 1860. 0. 1851. 9. 0. 292. 6. 29. 6. 497.10 .18 00 6.34 1.40 .000 .045 .050 .000 488.50 1056.88 .006902 390. 510. 440. 4 0 0 .00 94.84 1151.72 *SECNO 3515.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.40 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 9.14 499.94 .00 .00 500.45 .51 1.86 .01 498.00 1860. 33. 1827. 0. 19. 317. 0. 32. 7. 500.00 20 1.72 5.77 00 .050 .045 .000 .000 490.80 1090.55 .003509 380. 390. 325. 2 0 0 .00 79.31 1169.86 PAGE 8 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELKIN SETA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.36 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 2135.00 9.03 494.63 .00 .00 494.76 .13 77 .10 499.70 1860. 0. 1860. 0. 0. 635. 0. 19. 4. 496.00 13 00 2.93 00 .000 .050 .000 .000 485.60 1040.44 .002248 120. 175. 80. 3 0 0 .00 208.33 1248.77 *SECNO 2615.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 2615.00 8.85 495.75 .00 .00 496.14 .39 1.30 .08 497.30 1860. 0. 1860. 0. 0. 373. 0. 25. 5. 497.20 16 00 4.99 00 .000 .045 .000 .000 486.90 1083.15 .003341 460. 480. 270. 3 0 0 .00 85.24 1168.38 *SECNO 3125.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .70 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 9.46 497.96 .00 .00 498.58 .62 2.37 .07 498.00 1860. 0. 1851. 9. 0. 292. 6. 29. 6. 497.10 .18 00 6.34 1.40 .000 .045 .050 .000 488.50 1056.88 .006902 390. 510. 440. 4 0 0 .00 94.84 1151.72 *SECNO 3515.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.40 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 9.14 499.94 .00 .00 500.45 .51 1.86 .01 498.00 1860. 33. 1827. 0. 19. 317. 0. 32. 7. 500.00 20 1.72 5.77 00 .050 .045 .000 .000 490.80 1090.55 .003509 380. 390. 325. 2 0 0 .00 79.31 1169.86 PAGE 8 1 FQ ITRACE 1 PAGE 9 8/19/91 15 :47:21 T1 TRIBUTARY Gl OF GRAPEVINE CREEK - COPPELL, TEXAS - PROPOSED IMP CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 50 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIIMPR.DAT) Jl ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL -1 3 .0060 493.88 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM 2 0 -1 1 FQ ITRACE 1 PAGE 9 1 PAGE 10 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 481.56 , NOT 482.92 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELR EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL %NCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *PROF 2 CCHV= .300 CEHV= .500 * SECNO 120.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 120.00 10.27 483.77 .00 493.88 484.63 .86 .00 .00 488.80 2735. 0. 2735. 0. 0. 367. 0. 0. 0. 487.20 .00 .00 7.45 .00 .000 .050 .000 .000 473.50 1176.13 .005893 0. 0. 0. 0 0 6 .00 56.23 1232.36 * SECNO 220.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 220.00 9.65 484.15 .00 .00 485.46 1.31 .60 .22 476.50 2735. 326. 2030. 379. 77. 197. 81. 1. 0. 474.50 .00 4.22 10.32 4.69 .065 .050 .065 .000 474.50 1073.82 .006232 70. 100. 120. 2 0 0 .00 57.93 1131.76 * SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .59 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA= 489.30 230.00 8.42 482.92 482.84 .00 486.89 3.98 .10 1.33 476.50 2735. 0. 2735. 0. 0. 171. 0. 1. 0. 474.50 .00 .00 16.01 .00 .000 .050 .000 .000 474.50 1094.00 .018084 10. 10. 10. 6 11 0 .00 21.00 1115.00 1 PAGE 10 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 481.56 , NOT 482.92 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) 8/19/91 15 :47:21 PAGE 11 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST SB XK XKOR COFQ RDLEN BWC BWP BARBA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 *SECNO 290.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.42 PRESSURE FLOW EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID AREA ELLC ELTRD WEIRLN 487.45 487.31 .00 0. 2735. 200. 200. 484.50 489.30 0. 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA- 490.00 ELREA-- 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 10.34 484.84 .00 .00 487.45 2.60 .55 .00 476.50 2735. 0. 2735. 0. 0. 211. 0. 1. 0. 474.50 .00 .00 12.95 .00 .000 .050 .000 .000 474.50 1094.00 .008922 60. 60. 60. 4 0 0 .00 21.00 1115.00 *SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.93 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 13.02 487.82 .00 .00 488.29 .48 .21 .64 488.20 2735. 0. 2735. 0. 0. 494. 0. 2. 0. 487.40 .01 .00 5.54 .38 .000 .050 .065 .000 474.80 1065.62 .002390 50. 50. 50. 3 0 0 .00 61.38 1127.01 CCHV= .100 CEHV= .300 *SECNO 560.000 3301 HV CHANGED MORE THAN HVINS 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 560.00 9.07 489.27 489.27 .00 492.18 2.91 1.23 .73 494.20 2735. 0. 2735. 0. 0. 200. 0. 3. 0. 490.10 .01 .00 13.68 .00 .000 .050 .000 .000 480.20 1134.35 .024956 150. 220. 300. 20 11 0 .00 34.43 1168.79 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.76 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 770.00 12.56 492.76 .00 .00 492.91 .15 .46 .28 493.90 2735. 0. 2668. 67. 0. 843. 95. 6. 1. 490.20 .03 .00 3.16 .71 .000 .050 .065 .000 480.20 1037.79 .000753 200. 210. 160. 3 0 0 .00 206.23 1244.02 * SECNO 945.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .65 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 945.00 14.31 492.91 .00 .00 493.12 .21 .19 .02 496.00 2735. 0. 2735. 0. 0. 748. 0. 9. 2. 493.40 .04 .00 3.66 .00 .000 .050 .000 .000 478.60 1121.99 .001792 215. 175. 30. 2 0 0 .00 146.09 1268.08 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.90 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS ) PAGE 12 8/19/91 15:47 :21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 560.00 9.07 489.27 489.27 .00 492.18 2.91 1.23 .73 494.20 2735. 0. 2735. 0. 0. 200. 0. 3. 0. 490.10 .01 .00 13.68 .00 .000 .050 .000 .000 480.20 1134.35 .024956 150. 220. 300. 20 11 0 .00 34.43 1168.79 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 5.76 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 770.00 12.56 492.76 .00 .00 492.91 .15 .46 .28 493.90 2735. 0. 2668. 67. 0. 843. 95. 6. 1. 490.20 .03 .00 3.16 .71 .000 .050 .065 .000 480.20 1037.79 .000753 200. 210. 160. 3 0 0 .00 206.23 1244.02 * SECNO 945.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .65 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 945.00 14.31 492.91 .00 .00 493.12 .21 .19 .02 496.00 2735. 0. 2735. 0. 0. 748. 0. 9. 2. 493.40 .04 .00 3.66 .00 .000 .050 .000 .000 478.60 1121.99 .001792 215. 175. 30. 2 0 0 .00 146.09 1268.08 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.90 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS ) PAGE 12 PAGE 13 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 1120.00 13.76 493.16 .00 .00 493.27 .11 .15 .01 493.40 2735. 0. 2668. 67. 0. 975. 115. 13. 2. 490.00 .06 .00 2.74 .59 .000 .050 .065 .000 479.40 1250.49 .000495 315. 175. 30. 2 0 0 .00 238.96 1489.45 * SECNO 1280.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .32 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1280.00 11.78 492.98 .00 .00 493.61 .62 .18 .15 497.00 2735. 0. 2719. 16. 0. 427. 16. 15. 3. 492.00 .07 .00 6.36 1.00 .000 .050 .065 .000 481.20 1273.84 .004937 140. 160. 120. 2 0 0 .00 108.23 1382.07 * SECNO 1450.000 CROSS- SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS 1450.00 12.76 493.76 .00 .00 494.21 .45 .59 .02 490.00 2735. 15. 2720. 0. 10. 502. 0. 17. 3. 500.00 .08 1.45 5.41 .00 .065 .050 .000 .000 481.00 1312.71 .002552 140. 170. 240. 2 0 0 .00 76.69 1389.41 CCHV= .100 CEHV= .300 * SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.43 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1760.00 11.77 494.57 .00 .00 494.77 .21 .54 .02 497.00 2735. 0. 2735. 0. 0. 752. 0. 22. 4. 495.20 .10 .00 3.64 .00 .000 .050 .000 .000 482.80 1314.24 .001248 140. 310. 350. 2 0 0 .00 111.51 1425.75 * SECNO 1960.000 PAGE 13 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .38 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 499.07 8/19/91 9.68 15:47:21 .00 .00 495.56 1.09 .52 .26 498.00 2735. SECNO DEPTH CWSEL CRIWS WSELR EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .38 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 499.07 1960.00 9.68 494.48 .00 .00 495.56 1.09 .52 .26 498.00 2735. 0. 2577. 158. 0. 300. 50. 24. 4. 493.10 .11 .00 8.58 3.17 .000 .050 .055 .000 484.80 1162.45 .008487 170. 200. 220. 2 0 0 .00 86.13 1248.58 *SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.34 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 10.57 499.07 .00 .00 499.79 .72 2135.00 10.46 496.06 .00 .00 496.18 .12 .52 .10 499.70 2735. 0. 2735. 0. 0. 965. 0. 27. 5. 496.00 .12 .00 2.83 .01 .000 .050 .055 .000 485.60 1038.90 .001545 120. 175. 80. 3 0 0 .00 253.50 1292.40 *SECNO 2615.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .65 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 2615.00 9.97 496.87 .00 .00 497.39 .52 1.09 .12 497.30 2735. 0. 2735. 0. 0. 473. 0. 35. 7. 497.20 .15 .00 5.78 .00 .000 .045 .000 .000 486.90 1077.24 .003689 460. 480. 270. 3 0 0 .00 93.17 1170.41 *SECNO 3125.000 i PAGE 14 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 10.57 499.07 .00 .00 499.79 .72 2.33 .06 498.00 2735. 11. 2645. 79. 7. 383. 33. 40. S. 497.10 .17 1.50 6.90 2.36 .050 .045 .050 .000 488.50 1041.63 .005860 390. 510. 440. 2 0 0 .00 129.75 1171.39 i PAGE 14 PAGE 15 HV HL OLOSS BANK ELEV AROB VOL TWA LEFT /RIGHT XNR WTN ELMIN SSTA ICONT CORAR TOPWID ENDST .71 1.87 .00 498.00 3. 44. 9. 500.00 .050 .000 490.80 1064.11 0 .00 112.95 1177.06 1 ) 1 1 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG Q QLOB QCH QROB ALOB ACH TIME VLOB VCH VROB XNL XNCH SLOPE XLOBL XLCH XLOBR ITRIAL IDC *SECNO 3515.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 10.14 500.94 .00 .00 501.66 2735. 127. 2604. 4. 51. 376. .18 2.50 6.92 1.13 .050 .045 .004015 380. 390. 325. 2 0 PAGE 15 HV HL OLOSS BANK ELEV AROB VOL TWA LEFT /RIGHT XNR WTN ELMIN SSTA ICONT CORAR TOPWID ENDST .71 1.87 .00 498.00 3. 44. 9. 500.00 .050 .000 490.80 1064.11 0 .00 112.95 1177.06 1 ) 1 ) 1 1 1 ) 1 1 8/19/91 15 :47:21 PAGE 16 T1 TRIBUTARY G1 OF GRAPEVINE CREEK - COPPELL, TEXAS - PROPOSED IMP. CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 100 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIIMPR.DAT) J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ -1 4 .0060 495.10 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM ITRACE 3 0 -1 1 ) 1 1 ) 8/19/91 15:47:21 .00 486.19 1.44 .62 SECNO DEPTH CWSEL CRIWS WSELK EG Q QLOB QCH QROB ALOB ACH TIME VLOB VCH VROB XNL XNCH SLOPE XLOBL XLCH XLOBR ITRIAL IDC *PROF 3 CCHV= .300 CEHV= .500 *SECNO 120.000 7185 MINIMUM SPECIFIC ENERGY CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 120.00 10.88 484.38 .00 495.10 485.33 3140. 0. 3140. 0. 0. 402. 00 .00 7.82 .00 .000 .050 .005994 0. 0. 0. 0 0 *SECNO 220.000 HV HL AROB VOL XNR WTN ICONT CORAR .95 0. .000 7 OLOSS BANK ELEV TWA LEFT /RIGHT ELMIN SSTA TOPWID ENDST .00 .00 488.80 0. 0. 487.20 .000 473.50 1175.15 .00 57.68 1232.83 ► 1 1 PAGE 17 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 220.00 10.25 484.75 .00 .00 486.19 1.44 .62 .25 476.50 3140. 404. 2284. 451. 90. 209. 91. 1. 0. 474.50 .00 4.51 10.92 4.95 .065 .050 .065 .000 474.50 1072.25 .006422 70. 100. 120. 2 0 0 .00 60.54 1132.79 *SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 7185 MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA= 489.30 230.00 9.11 483.61 483.61 .00 488.07 4.46 .10 1.51 476.50 3140. 0. 3140. 0. 0. 185. 0. 1. 0. 474.50 .00 .00 16.95 .00 .000 .050 .000 .000 474.50 1094.00 .018203 10. 10. 10. 4 11 0 .00 21.00 1115.00 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 482.24 , NOT 483.61 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) SB XK XKOR COFQ RDLEN BWC BWP BAREA SS ELCHU ELCHD 1.25 1.56 2.60 .00 20.70 .70 200.00 .00 474.50 474.50 *SECNO 290.000 3301 HV CHANGED MORE THAN HVINS PAGE 18 HV HL OLOSS BANK ELEV AROB VOL TWA LEFT /RIGHT XNR WTN ELMIN SSTA ICONT CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.79 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID ELLC ELTRD WEIRLN AREA 489.58 488.53 .00 6. 3120. 200. 200. 484.50 489.30 65. 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 490.00 ELREA= 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 12.79 487.29 .00 .00 489.51 2.22 1.44 .00 476.50 3140. 0. 3140. 0. 0. 263. 0. 1. 0. 474.50 .00 .00 11.96 .00 .000 .050 .000 .000 474.50 1094.00 .005690 60. 60. 60. 3 0 2 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.96 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 15.01 489.81 00 00 490.19 38 .13 .55 488.20 3140. 61. 3065. 14. 63. 613. 14. 2. 0. 487.40 .01 .96 5.00 .98 .065 .050 .065 .000 474.80 1005.05 .001478 50. 50. 50. 3 0 0 .00 131.70 1136.75 CCHV= .100 CEHV- .300 * SECNO 560.000 3301 HV CHANGED MORE THAN HVINS 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG Q QLOB QCH QROB ALOE ACH TIME VLOB VCH VROB XNL XNCH SLOPE XLOBL XLCH XLOBR ITRIAL IDC 3301 HV CHANGED MORE THAN HVINS PAGE 18 HV HL OLOSS BANK ELEV AROB VOL TWA LEFT /RIGHT XNR WTN ELMIN SSTA ICONT CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.79 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID ELLC ELTRD WEIRLN AREA 489.58 488.53 .00 6. 3120. 200. 200. 484.50 489.30 65. 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 490.00 ELREA= 490.00 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 12.79 487.29 .00 .00 489.51 2.22 1.44 .00 476.50 3140. 0. 3140. 0. 0. 263. 0. 1. 0. 474.50 .00 .00 11.96 .00 .000 .050 .000 .000 474.50 1094.00 .005690 60. 60. 60. 3 0 2 .00 21.00 1115.00 * SECNO 340.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.96 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 15.01 489.81 00 00 490.19 38 .13 .55 488.20 3140. 61. 3065. 14. 63. 613. 14. 2. 0. 487.40 .01 .96 5.00 .98 .065 .050 .065 .000 474.80 1005.05 .001478 50. 50. 50. 3 0 0 .00 131.70 1136.75 CCHV= .100 CEHV- .300 * SECNO 560.000 3301 HV CHANGED MORE THAN HVINS PAGE 19 HL OLOSS BANK ELEV VOL TWA LEFT /RIGHT WTN ELMIN SETA CORAR TOPWID ENDST 3685 20 TRIALS ATTEMPTED WSEL,CWSEL RANGE, KRATIO = 6.04 CROSS - SECTION TAKEN 8/19/91 3693 PROBABLE 15:47:21 770.00 13.38 SECNO DEPTH CWSEL CRIWS WSELK EG HV Q QLOB QCH QROB ALOB ACH AROB TIME VLOB VCH VROB XNL XNCH XNR SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT PAGE 19 HL OLOSS BANK ELEV VOL TWA LEFT /RIGHT WTN ELMIN SETA CORAR TOPWID ENDST 3685 20 TRIALS ATTEMPTED WSEL,CWSEL RANGE, KRATIO = 6.04 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3693 PROBABLE MINIMUM SPECIFIC ENERGY 770.00 13.38 493.58 .00 3720 CRITICAL DEPTH ASSUMED .43 .30 493.90 3140. 0. 2977. CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 185. 7. 1. 490.20 560.00 9.65 489.85 489.85 .00 493.00 3.15 .84 .83 494.20 3140. 0. 3140. 0. 0. 221. 0. 4. 1. 490.10 .01 .00 14.24 .00 .000 .050 .000 .000 480.20 1133.65 .025239 150. 220. 300. 20 15 0 .00 35.99 1169.64 *SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 6.04 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 770.00 13.38 493.58 .00 .00 493.73 .15 .43 .30 493.90 3140. 0. 2977. 163. 0. 931. 185. 7. 1. 490.20 03 00 3.20 88 .000 .050 .065 .000 480.20 1035.81 .000692 200. 210. 160. 2 0 0 .00 231.70 1267.51 *SECNO 945.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO .67 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 945.00 15.11 493.71 .00 .00 493.91 .20 17 .02 496.00 3140. 0. 3138. 2. 0. 870. S. 11. 2. 493.40 .04 00 3.61 26 .000 .050 .065 .000 478.60 1120.45 .001560 215. 175. 30. 2 0 0 .00 206.96 1327.40 *SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.82 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1120.00 14.54 493.94 00 .00 494.06 12 .13 .01 493.40 3140. 0. 2983. 157. 0. 1060. 243. 15. 2. 490.00 06 20 2.81 65 .065 .050 .065 .000 479.40 1248.50 .000471 315. 175. 30. 2 0 0 .00 310.97 1559.47 l 1 1 FROM G&M FIELD 1 1 IMPROVEMENTS 8/19/91 15:47:21 12.57 493.77 .00 .00 494.37 SECNO DEPTH CWSEL CRIWS WSELR EG HV Q QLOB QCH QROB ALOB ACH AROB TIME VLOB VCH VROB XNL XNCH XNR SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT *SECNO 1280.000 PAGE 20 HL OLOSS BANK ELEV VOL TWA LEFT /RIGHT WTN ELKIN SSTA CORAR TOPWID ENDST 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .33 *SECNO 1450.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 13.44 1280.00 12.57 493.77 .00 .00 494.37 .60 .17 .15 497.00 3140. 0. 3070. 70. 0. 488. 51. 18. 3. 492.00 .07 .00 6.29 1.37 .000 .050 .065 .000 481.20 1271.14 .004237 140. 160. 120. 2 0 0 .00 136.32 1407.46 *SECNO 1450.000 *SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .41 CROSS- SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS IMPROVEMENTS 1450.00 13.44 494.44 .00 .00 494.93 .49 .55 .01 490.00 3140. 27. 3113. 0. 16. 550. 0. 20. 4. 500.00 .08 1.69 5.66 .00 .065 .050 .000 .000 481.00 1310.68 .002555 140. 170. 240. 2 0 0 .00 80.42 1391.10 CCHV= .100 CEHV= .300 *SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.44 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1760.00 12.47 495.27 .00 .00 495.49 .22 .53 .03 497.00 3140. 0. 3140. 0. 0. 831. 0. 25. 4. 495.20 .10 .00 3.78 .01 .000 .050 .055 .000 482.80 1312.16 .001227 140. 310. 350. 2 0 0 .00 115.80 1427.97 *SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .41 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1960.00 10.40 495.20 .00 .00 496.22 1.02 .49 .24 498.00 3140. 0. 2850. 290. 0. 337. 81. 28. 5. 493.10 .11 .00 8.44 3.58 .000 .050 .055 .000 484.80 1161.53 .007243 170. 200. 220. 2 0 0 .00 105.66 1267.20 PAGE 21 1 1 1 1 ) ) ► 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST * SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.37 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 2135.00 11.03 496.63 .00 .00 496.75 .12 .44 .09 499.70 3140. 0. 3136. 4. 0. 1106. B. 31. S. 496.00 .12 .00 2.84 .44 .000 .050 .055 .000 485.60 1038.30 .001294 120. 175. 80. 2 0 0 .00 277.96 1316.26 * SECNO 2615.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .58 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 2615.00 10.40 497.30 .00 .00 497.88 .58 .99 .14 497.30 3140. 0. 3140. 0. 0. 514. 0. 40. 7. 497.20 .15 .00 6.11 .02 .000 .045 .050 .000 486.90 1074.89 .003841 460. 480. 270. 2 0 0 .00 96.94 1171.83 * SECNO 3125.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 11.00 499.50 .00 .00 500.25 .75 2.32 .05 498.00 3140. 26. 2976. 139. 14. 419. 50. 46. 9. 497.10 .17 1.82 7.10 2.76 .050 .045 .050 .000 488.50 1036.20 .005511 390. 510. 440. 2 0 0 .00 143.89 1180.09 * SECNO 3515.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 10.53 501.33 .00 .00 502.12 .79 1.86 .01 498.00 3140. 192. 2938. 10. 71. 400. 7. 50. 10. 500.00 .18 2.72 7.35 1.46 .050 .045 .050 .000 490.80 1053.50 .004190 380. 390. 325. 2 0 0 .00 126.45 1179.95 PAGE 21 WSEL 495.10 CHNIM PAGE 22 0 ITRACE 8/19/91 15:47:21 T1 TRIBUTARY Gl OF GRAPEVINE CREEK - COPPELL, TEXAS - PROPOSED IMP. CONDITIONS T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 500 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIIMPR.DAT) J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q -1 5 .0060 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 4 0 15 WSEL 495.10 CHNIM PAGE 22 0 ITRACE 8/19/91 15:47 :21 PAGE 23 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *PROF 4 CCHV_ .300 CEHV= .500 * SECNO 120.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 120.00 12.46 485.96 .00 495.10 487.08 1.12 .00 .00 488.80 4210. 0. 4210. 0. 0. 496. 0. 0. 0. 487.20 .00 .00 8.49 .00 .000 .050 .000 .000 473.50 1172.60 .005905 0. 0. 0. 0 0 6 .00 61.44 1234.04 * SECNO 220.000 3301 HV CHANGED MORE THAN HVINS CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 220.00 11.78 486.28 .00 .00 487.98 1.70 .61 .29 476.50 4210. 640. 2913. 658. 126. 241. 121. 1. 0. 474.50 .00 5.07 12.06 5.46 .065 .050 .065 .000 474.50 1068.21 .006478 70. 100. 120. 2 0 0 .00 67.25 1135.46 * SECNO 230.000 3301 HV CHANGED MORE THAN HVINS 3685 20 TRIALS ATTEMPTED WSEL,CWSEL 3693 PROBABLE MINIMUM SPECIFIC ENERGY 3720 CRITICAL DEPTH ASSUMED 3495 OVERBANK AREA ASSUMED NON - EFFECTIVE, ELLEA= 489.30 ELREA= 489.30 230.00 11.01 485.51 485.51 .00 490.94 5.42 .10 1.86 476.50 4210. 0. 4210. 0. 0. 225. 0. 1. 0. 474.50 .00 .00 18.69 .00 .000 .050 .000 .000 474.50 1094.00 .017061 10. 10. 10. 20 11 0 .00 21.00 1115.00 SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 483.91 , NOT SB XK XKOR COFQ RDLEN 1.25 1.56 2.60 .00 * SECNO 290.000 3280 CROSS SECTION 290.00 EXTENDED PAGE 24 485.51 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) BWC BWP BAREA SS ELCHU ELCHD 20.70 .70 200.00 .00 474.50 474.50 1.59 FEET 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE 8/19/91 15:47:21 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST SPECIAL BRIDGE 5227 DOWNSTREAM ELEV IS 483.91 , NOT SB XK XKOR COFQ RDLEN 1.25 1.56 2.60 .00 * SECNO 290.000 3280 CROSS SECTION 290.00 EXTENDED PAGE 24 485.51 HYDRAULIC JUMP OCCURS DOWNSTREAM (IF LOW FLOW CONTROLS) BWC BWP BAREA SS ELCHU ELCHD 20.70 .70 200.00 .00 474.50 474.50 1.59 FEET 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 3.73 PRESSURE AND WEIR FLOW, Weir Submergence Based on TRAPEZOIDAL Shape EGPRS EGLWC H3 QWEIR QPR BAREA TRAPEZOID ELLC ELTRD AREA 496.25 491.52 .00 1065. 3146. 200. 200. 484.50 489.30 STATION 2 +60 BETHEL SCHOOL ROAD 290.00 16.59 491.09 .00 .00 491.51 .42 .57 .00 476.50 4210. 1139. 2267. 804. 432. 342. 272. 2. 0. 474.50 01 2.63 6.62 2.95 .065 .050 .065 .000 474.50 1000.00 .001226 60. 60. 60. 2 0 4 .00 160.00 1160.00 * SECNO 340.000 3280 CROSS SECTION 340.00 EXTENDED 1.13 FEET CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 340.00 16.33 491.13 .00 .00 491.60 .47 .07 .02 488.20 4210. 238. 3925. 47. 149. 693. 34. 3. 0. 487.40 .01 1.60 5.67 1.37 .065 .050 .065 .000 474.80 1000.00 .001617 50. 50. 50. 2 0 0 .00 143.19 1143.19 WEIRLN 200. CCHV= .100 CEHV= .300 * SECNO 560.000 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 4.84 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 8/19/91 15:47:21 770.00 14.75 494.95 .00 SECNO DEPTH CWSEL CRIWS WSELR EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELKIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST 3301 HV CHANGED MORE THAN HVINS * SECNO 945.000 3685 20 TRIALS ATTEMPTED WSEL,CWSEL CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 3693 PROBABLE MINIMUM SPECIFIC ENERGY 16.47 495.07 .00 .00 495.28 .21 .15 3720 CRITICAL DEPTH ASSUMED 496.00 4210. 0. 4057. 153. 0. 1084. 165. CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 493.40 .04 .00 3.74 560.00 12.38 492.58 492.58 .00 494.56 1.97 .82 .45 494.20 4210. 0. 3962. 248. 0. 342. 71. 6. 1. 490.10 .01 .00 11.59 3.48 .000 .050 .065 .000 480.20 1114.05 .015765 150. 220. 300. 20 15 0 .00 120.06 1234.11 * SECNO 770.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 4.84 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 770.00 14.75 494.95 .00 .00 495.12 .17 .38 .18 493.90 4210. 1. 3752. 458. 2. 1083. 403. 11. 2. 490.20 .03 .38 3.47 1.14 .065 .050 .065 .000 480.20 1030.82 .000672 200. 210. 160. 2 0 0 .00 322.47 1353.29 * SECNO 945.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 945.00 16.47 495.07 .00 .00 495.28 .21 .15 .01 496.00 4210. 0. 4057. 153. 0. 1084. 165. 15. 3. 493.40 .04 .00 3.74 .92 .000 .050 .065 .000 478.60 1117.82 .001285 215. 175. 30. 2 0 0 .00 315.89 1433.71 * SECNO 1120.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.65 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1120.00 15.88 495.28 .00 .00 495.41 .13 .12 .01 493.40 4210. 2. 3708. 500. 5. 1207. 539. 20. 3. 490.00 .06 .46 3.07 .93 .065 .050 .065 .000 479.40 1244.79 .000472 315. 175. 30. 2 0 0 .00 355.27 1600.06 ) ) PAGE 25 *SECNO 1280.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .35 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1280.00 13.90 495.10 8/19/91 .00 495.71 15 :47 :21 .16 .15 497.00 4210. 0. 3887. 323. SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SETA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST *SECNO 1280.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .35 *SECNO 1450.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1280.00 13.90 495.10 .00 .00 495.71 .62 .16 .15 497.00 4210. 0. 3887. 323. 0. 596. 147. 24. 4. 492.00 .07 .00 6.52 2.20 .000 .050 .065 .000 481.20 1266.56 .003758 140. 160. 120. 2 0 0 .00 167.66 1434.22 *SECNO 1450.000 *SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - .47 CROSS- SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS IMPROVEMENTS 1450.00 14.64 495.64 .00 .00 496.29 .65 .57 .01 490.00 4210. 66. 4144. 0. 29. 637. 0. 27. 5. 500.00 .08 2.26 6.50 .00 .065 .050 .000 .000 481.00 1307.07 .002928 140. 170. 240. 2 0 0 .00 87.04 1394.11 CCHV= .100 CEHV= .300 *SECNO 1760.000 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 1.51 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1760.00 13.82 496.62 .00 .00 496.90 .28 .57 .04 497.00 4210. 0. 4196. 14. 0. 990. 17. 33. 6. 495.20 .10 .00 4.24 .83 .000 .050 .055 .000 482.80 1308.12 .001283 140. 310. 350. 2 0 0 .00 145.32 1453.44 *SECNO 1960.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - .47 i ) i PAGE 26 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS 1960.00 11.84 496.64 .00 .00 497.58 .94 .48 .20 498.00 4210. 0. 3456. 754. 0. 413. 189. 37. 6. 493.10 .10 .00 8.37 3.98 .000 .050 .055 .000 484.80 1159.71 .005755 170. 200. 220. 2 0 0 .00 147.42 1307.13 i ) i PAGE 26 8/19/91 15:47:21 SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS BANK ELEV Q QLOB QCH QROB ALOB ACH AROB VOL TWA LEFT /RIGHT TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST * SECNO 2135.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = 2.40 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 2135.00 12.26 497.86 .00 .00 497.99 .13 .33 .08 499.70 4210. 0. 4151. 59. 0. 1417. 73. 41. 7. 496.00 12 00 2.93 81 .000 .050 .055 .000 485.60 1036.98 .001001 120. 175. 80. 2 0 0 .00 331.69 1368.67 * SECNO 2615.000 3301 HV CHANGED MORE THAN HVINS 3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO = .51 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 2615.00 11.38 498.28 .00 00 499.01 .73 84 .18 497.30 4210. 14. 4191. 6. 10. 608. 5. 52. 9. 497.20 14 1.31 6.89 1.23 .050 .045 .050 .000 486.90 1054.95 .003900 460. 480. 270. 2 0 0 .00 124.64 1179.59 * SECNO 3125.000 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY 3125.00 11.95 500.45 00 00 501.26 82 2.22 02 498.00 4210. 99. 3770. 341. 37. 497. 103. 59. 11. 497.10 .16 2.66 7.59 3.32 .050 .045 .050 .000 488.50 1026.58 .005004 390. 510. 440. 2 0 0 .00 183.95 1210.53 * SECNO 3515.000 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY 3515.00 11.38 502.18 00 00 503.16 97 1.85 05 498.00 4210. 421. 3749. 40. 129. 451. 18. 65. 12. 500.00 17 3.27 8.31 2.20 .050 .045 .050 .000 490.80 1031.81 .004560 380. 390. 325. 2 0 0 .00 156.83 1188.64 1 ) ) PAGE 27 8/19/91 15 :47:21 PAGE 28 HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 THIS RUN EXECUTED 8/19/91 15:47:37 ERROR CORR - 01,02 MODIFICATION - ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** NOTE- ASTERISK ( *) AT LEFT OF CROSS - SECTION NUMBER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST YEAR EVENT - GOODWIN AND SUMMARY PRINTOUT SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELMIN SSTA ENDST TOPWID 120.000 1860.00 482.19 482.87 .00 6.61 1168.00 1235.00 473.50 1178.69 1231.15 52.46 120.000 2735.00 483.77 484.63 .00 7.45 1168.00 1235.00 473.50 1176.13 1232.36 56.23 120.000 3140.00 484.38 485.33 .00 7.82 1168.00 1235.00 473.50 1175.15 1232.83 57.68 120.000 4210.00 485.96 487.08 .00 8.49 1168.00 1235.00 473.50 1172.60 1234.04 61.44 220.000 1860.00 482.62 483.62 .00 8.85 1094.00 1115.00 474.50 1077.87 1129.10 51.23 220.000 2735.00 484.15 485.46 .00 10.32 1094.00 1115.00 474.50 1073.82 1131.76 57.93 220.000 3140.00 484.75 486.19 .00 10.92 1094.00 1115.00 474.50 1072.25 1132.79 60.54 220.000 4210.00 486.28 487.98 .00 12.06 1094.00 1115.00 474.50 1068.21 1135.46 67.25 * 230.000 1860.00 482.05 484.36 .00 12.20 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 2735.00 482.92 486.89 482.84 16.01 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 3140.00 483.61 488.07 483.61 16.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 4210.00 485.51 490.94 485.51 18.69 1094.00 1115.00 474.50 1094.00 1115.00 21.00 290.000 1860.00 482.77 484.68 .00 11.09 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 2735.00 484.84 487.45 .00 12.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 3140.00 487.29 489.51 .00 11.96 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 4210.00 491.09 491.51 .00 6.62 1094.00 1115.00 474.50 1000.00 1160.00 160.00 * 340.000 1860.00 484.88 485.37 .00 5.63 1065.00 1125.00 474.80 1070.35 1121.68 51.33 * 340.000 2735.00 487.82 488.29 .00 5.54 1065.00 1125.00 474.80 1065.62 1127.01 61.38 * 340.000 3140.00 489.81 490.19 .00 5.00 1065.00 1125.00 474.80 1005.05 1136.75 131.70 340.000 4210.00 491.13 491.60 .00 5.67 1065.00 1125.00 474.80 1000.00 1143.19 143.19 * 560.000 1860.00 487.63 490.11 487.63 12.65 1100.00 1170.00 480.20 1136.31 1166.39 30.08 * 560.000 2735.00 489.27 492.18 489.27 13.68 1100.00 1170.00 480.20 1134.35 1168.79 34.43 * 560.000 3140.00 489.85 493.00 489.85 14.24 1100.00 1170.00 480.20 1133.65 1169.64 35.99 * 560.000 4210.00 492.58 494.56 492.58 11.59 1100.00 1170.00 480.20 1114.05 1234.11 120.06 * 770.000 1860.00 490.75 490.88 .00 2.94 1035.00 1145.00 480.20 1042.68 1154.73 112.05 * 770.000 2735.00 492.76 492.91 .00 3.16 1035.00 1145.00 480.20 1037.79 1244.02 206.23 * 770.000 3140.00 493.58 493.73 .00 3.20 1035.00 1145.00 480.20 1035.81 1267.51 231.70 * 770.000 4210.00 494.95 495.12 .00 3.47 1035.00 1145.00 480.20 1030.82 1353.29 322.47 8/19/91 15 :47 :21 PAGE 29 SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELMIN SSTA ENDST TOPWID * 945.000 1860.00 490.92 491.14 .00 3.74 1116.00 1277.00 478.60 1125.82 1232.43 106.60 * 945.000 2735.00 492.91 493.12 .00 3.66 1116.00 1277.00 478.60 1121.99 1268.08 146.09 * 945.000 3140.00 493.71 493.91 .00 3.61 1116.00 1277.00 478.60 1120.45 1327.40 206.96 945.000 4210.00 495.07 495.28 .00 3.74 1116.00 1277.00 478.60 1117.82 1433.71 315.89 * 1120.000 1860.00 491.22 491.31 .00 2.42 1250.00 1360.00 479.40 1254.49 1375.26 120.77 * 1120.000 2735.00 493.16 493.27 .00 2.74 1250.00 1360.00 479.40 1250.49 1489.45 238.96 * 1120.000 3140.00 493.94 494.06 .00 2.81 1250.00 1360.00 479.40 1248.50 1559.47 310.97 * 1120.000 4210.00 495.28 495.41 .00 3.07 1250.00 1360.00 479.40 1244.79 1600.06 355.27 * 1280.000 1860.00 491.03 491.68 .00 6.43 1260.00 1350.00 481.20 1280.24 1341.97 61.74 * 1280.000 2735.00 492.98 493.61 .00 6.36 1260.00 1350.00 481.20 1273.84 1382.07 108.23 * 1280.000 3140.00 493.77 494.37 .00 6.29 1260.00 1350.00 481.20 1271.14 1407.46 136.32 * 1280.000 4210.00 495.10 495.71 .00 6.52 1260.00 1350.00 481.20 1266.56 1434.22 167.66 * 1450.000 1860.00 492.01 492.37 .00 4.83 1320.00 1400.00 481.00 1317.96 1385.03 67.07 1450.000 2735.00 493.76 494.21 .00 5.41 1320.00 1400.00 481.00 1312.71 1389.41 76.69 1450.000 3140.00 494.44 494.93 .00 5.66 1320.00 1400.00 481.00 1310.68 1391.10 80.42 1450.000 4210.00 495.64 496.29 .00 6.50 1320.00 1400.00 481.00 1307.07 1394.11 87.04 1760.000 1860.00 492.80 492.97 .00 3.31 1307.00 1427.00 482.80 1319.53 1422.25 102.72 * 1760.000 2735.00 494.57 494.77 .00 3.64 1307.00 1427.00 482.80 1314.24 1425.75 111.51 * 1760.000 3140.00 495.27 495.49 .00 3.78 1307.00 1427.00 482.80 1312.16 1427.97 115.80 * 1760.000 4210.00 496.62 496.90 .00 4.24 1307.00 1427.00 482.80 1308.12 1453.44 145.32 * 1960.000 1860.00 492.71 493.88 .00 8.70 1158.00 1213.00 484.80 1164.69 1228.90 60.39 * 1960.000 2735.00 494.48 495.56 .00 8.58 1158.00 1213.00 484.80 1162.45 1248.58 86.13 * 1960.000 3140.00 495.20 496.22 .00 8.44 1158.00 1213.00 484.80 1161.53 1267.20 105.66 * 1960.000 4210.00 496.64 497.58 .00 8.37 1158.00 1213.00 484.80 1159.71 1307.13 147.42 * 2135.000 1860.00 494.63 494.76 .00 2.93 1035.00 1290.00 485.60 1040.44 1248.77 208.33 * 2135.000 2735.00 496.06 496.18 .00 2.83 1035.00 1290.00 485.60 1038.90 1292.40 253.50 * 2135.000 3140.00 496.63 496.75 .00 2.84 1035.00 1290.00 485.60 1038.30 1316.26 277.96 * 2135.000 4210.00 497.86 497.99 .00 2.93 1035.00 1290.00 485.60 1036.98 1368.67 331.69 2615.000 1860.00 495.75 496.14 .00 4.99 1075.00 1171.00 486.90 1083.15 1168.38 85.24 * 2615.000 2735.00 496.87 497.39 .00 5.78 1075.00 1171.00 486.90 1077.24 1170.41 93.17 * 2615.000 3140.00 497.30 497.88 .00 6.11 1075.00 1171.00 486.90 1074.89 1171.83 96.94 * 2615.000 4210.00 498.28 499.01 .00 6.89 1075.00 1171.00 486.90 1054.95 1179.59 124.64 * 3125.000 1860.00 497.96 498.58 .00 6.34 1055.00 1137.00 488.50 1056.88 1151.72 94.84 3125.000 2735.00 499.07 499.79 .00 6.90 1055.00 1137.00 488.50 1041.63 1171.39 129.75 3125.000 3140.00 499.50 500.25 .00 7.10 1055.00 1137.00 488.50 1036.20 1180.09 143.89 3125.000 4210.00 500.45 501.26 .00 7.59 1055.00 1137.00 488.50 1026.58 1210.53 183.95 * 3515.000 1860.00 499.94 500.45 .00 5.77 1110.00 1170.00 490.80 1090.55 1169.86 79.31 3515.000 2735.00 500.94 501.66 .00 6.92 1110.00 1170.00 490.80 1064.11 1177.06 112.95 3515.000 3140.00 501.33 502.12 .00 7.35 1110.00 1170.00 490.80 1053.50 1179.95 126.45 3515.000 4210.00 502.18 503.16 .00 8.31 1110.00 1170.00 490.80 1031.81 1188.64 156.83 8/19/91 15:47:21 SUMMARY OF ERRORS AND SPECIAL NOTES WARNING SECNO= 230.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 230.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 230.000 PROFILE= 3 CRITICAL DEPTH ASSUMED 560.000 CAUTION SECNO= 230.000 PROFILE= 3 MINIMUM SPECIFIC ENERGY PROFILE= CAUTION SECNO= 230.000 PROFILE= 4 CRITICAL DEPTH ASSUMED 2 CAUTION SECNO= 230.000 PROFILE- 4 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 230.000 PROFILE= 4 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 290.000 PROFILE= 2 HYDRAULIC JUMP D.S. CAUTION WARNING SECNO= 290.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 290.000 PROFILE= 3 HYDRAULIC JUMP D.S. 560.000 WARNING SECNO= 290.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 290.000 PROFILE= 4 HYDRAULIC JUMP D.S. 1120.000 WARNING SECNO= 290.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 560.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 3 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 3 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 3 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 4 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 4 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 4 20 TRIALS ATTEMPTED TO BALANCE WSEL WARNING SECNO= 770.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 770.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 770.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 770.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 945.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 945.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 945.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1280.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1280.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE- 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PAGE 30 8/19/91 WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO- WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= 15:47:21 1450.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 3125.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 3515.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE ) PAGE 31 APPENDIX D TRIBUTARY G-1 FLOODWAY HYDRAULIC MODEL AND RESULTS 8/21/91 12:29:42 PAGE 1 THIS RUN EXECUTED 8/21/91 12:29:42 WSEL FQ 492.40 CHNIM ITRACE 22 42 1190 473.5 1240 492 1094 474.5 53 1200 1270 1100 489.3 489.3 HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 ERROR CORR - 01,02 MODIFICATION - ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Tl TRIBUTARY G1 OF GRAPEVINE CREEK - COPPELL, TEXAS - ENCROACHMENT RUN T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 100 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GlENC.DAT) DMG - 8/91 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q -1 2 0.006 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 1 0 -1 J3 VARIABLE CODES FOR SUMMARY PRINTOUT 38 43 1 3 2 26 21 54 4 0 200 J5 LPRNT NUMSEC * * * * * ** *REQUESTED SECTION NUMBERS * * * * * * ** -10 -10 QT 2 3140 3140 NC .065 .065 05 0.3 0.5 ET 4.1 1118 1235 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY Xl 120 11 1168 1235 0 0 0 GR 492 1000 490.5 1118 488.8 1168 475.2 GR 476.4 1208 478.1 1228 487.2 1235 490 GR 492.5 1330 ET 4.1 1065 1140 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 220 8 1094 1115 70 120 100 GR 490 1000 488.9 1015 487.5 1065 476.5 GR 474.5 1115 488.9 1140 489.5 1160 ET 4.1 1065 1140 X1 230 0 0 0 10 10 10 X3 10 PAGE 1 THIS RUN EXECUTED 8/21/91 12:29:42 WSEL FQ 492.40 CHNIM ITRACE 22 42 1190 473.5 1240 492 1094 474.5 53 1200 1270 1100 489.3 489.3 300 220 1080 494.2 1100 490.4 1133 1156 490.1 1170 492.3 1220 1350 496 1370 498 1395 160 210 1035 489.8 1045 483.1 1065 1105 486.7 1135 490.2 1145 1280 496 1435 498 1450 30 175 1077 490.9 1107 487.7 1127 1160 485.9 1185 489.4 1205 1400 495.2 1440 496 1530 30 l ) 1 ) 1 483.7 1290 479.4 1300 1360 8/21/91 12:29:42 PAGE 2 0.7 SB 1.25 1.56 2.6 0 20.7 ET 4.1 1065 1140 490.0 STATION 2 +60 BETHEL SCHOOL ROAD 0 X1 290 0 0 0 60 X2 50 1 484.5 489.3 X3 10 477.0 1083 474.8 1093 BT 5 1000 491.5 0 1050 BT 1150 489.5 0 1200 490.4 ET 4.1 1065 1125 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 340 9 1065 1125 50 GR 490 1000 488.1 1050 488.2 GR 476.9 1100 477.5 1112 487.4 NC 0 0 0 0.1 0.3 ET 4.1 1133 1170 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY Xi 560 16 1100 1170 150 GR 494.3 1000 497.1 1050 494.3 GR 481.2 1144 480.2 1150 480.5 GR 492.9 1250 493.9 1300 495.2 GR 500 1405 ET 4.1 1045 1145 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 770 16 1035 1145 200 GR 499.8 1000 498.9 1015 493.9 GR 480.2 1075 482.6 1085 482.9 GR 491.9 1175 492.1 1225 494 GR 500 1480 ET 4.1 1140 1277 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY Xi 945 17 1107 1277 215 GR 504.2 1000 503.0 1050 501.5 GR 483.6 1140 478.6 1150 483.1 GR 493.4 1277 493.7 1327 494.3 GR 498 1545 500 1570 ET 4.1 1270 1350 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY Xi 1120 18 1250 1360 315 GR 501.1 1000 499.3 1050 497.4 GR 495.5 1230 493.4 1250 483.7 GR 483.4 1307 483.0 1350 490 GR 496 1620 498.0 1640 500.0 300 220 1080 494.2 1100 490.4 1133 1156 490.1 1170 492.3 1220 1350 496 1370 498 1395 160 210 1035 489.8 1045 483.1 1065 1105 486.7 1135 490.2 1145 1280 496 1435 498 1450 30 175 1077 490.9 1107 487.7 1127 1160 485.9 1185 489.4 1205 1400 495.2 1440 496 1530 30 l ) 1 ) 1 483.7 1290 479.4 1300 1360 492 1385 494 1565 1660 PAGE 2 0.7 200 0.0 474.5 474.5 60 60 490.0 490.0 490.0 0 1100 489.3 0 0 50 50 1065 477.0 1083 474.8 1093 1125 491.5 1145 300 220 1080 494.2 1100 490.4 1133 1156 490.1 1170 492.3 1220 1350 496 1370 498 1395 160 210 1035 489.8 1045 483.1 1065 1105 486.7 1135 490.2 1145 1280 496 1435 498 1450 30 175 1077 490.9 1107 487.7 1127 1160 485.9 1185 489.4 1205 1400 495.2 1440 496 1530 30 175 1100 496.2 1150 495.4 1200 1270 483.7 1290 479.4 1300 1360 492 1385 494 1565 1660 8/21/91 12:29:42 PAGE 3 ET 4.1 1290 1350 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 1280 20 1260 1350 140 120 160 GR 500 1000 498 1025 495.4 1050 495.3 1100 494.5 1150 GR 493.7 1200 493.5 1250 493.4 1260 491.2 1280 484.3 1290 GR 483.2 1295 481.2 1300 482.6 1306 487.4 1320 490.2 1335 GR 492.0 1350 494 1415 496 1450 498 1460 500 1480 ET 4.1 1335 1385 CROSS - SECTION TAKEN FROM 2' TOPO GENERATED FROM FIELD SURVEYS X1 1450 21 1320 1400 140 240 170 GR 500 1000 498 1020 496 1035 494 1315 492 1318 GR 490 1320 488 1330 486 1335 484 1350 482 1355 GR 481 1360 482 1361 484 1365 486 1370 488 1375 GR 490 1380 492 1385 494 1390 496 1395 498 1398 GR 500 1400 NC .055 .055 05 0.1 0.3 ET 4.1 1330 1412 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 1760 18 1270 1427 140 350 310 GR 500 1000 498 1015 496 1030 494.6 1100 494.9 1150 GR 494.9 1200 495.5 1250 494.9 1270 487.6 1295 486.9 1355 GR 485.6 1396 482.8 1400 485.2 1402 487.6 1412 495.2 1427 GR 495.9 1437 498.1 1487 499.1 1500 ET 4.1 1168 1206 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 1960 15 1158 1213 170 220 200 GR 500 1000 498.2 1123 496.6 1158 490.1 1168 485.6 1183 GR 484.8 1186 485.8 1189 488.4 1201 493.1 1213 492.0 1221 GR 494.7 1251 495.8 1286 497.0 1316 498.4 1386 499.2 1436 ET 4.1 1047 1200 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 2135 13 1035 1290 120 80 175 GR 501 1000 499.7 1035 488.5 1047 486.3 1057 485.6 1060 GR 487.4 1064 490.2 1074 490.0 1090 492 1150 494 1230 GR 496 1290 498 1375 500 1420 NC .05 .05 .045 ET 4.1 1075 1171 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY %1 2615 14 1075 1171 460 270 480 GR 502 1000 500 1025 498 1060 497.3 1075 491.6 1105 GR 490.4 1140 488.5 1145 486.9 1150 488.9 1156 497.2 1171 GR 499.1 1186 500 1230 502 1270 504 1340 440 510 1030 498 1104 490.2 1168 8/21/91 12:29 :42 390 1090 ET 1145 492 4.1 1055 1137 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 3125 16 1055 1137 390 GR 504 1000 502 1015 500 GR 492.3 1095 490.2 1099 488.5 GR 493.8 1127 497.1 1137 498.9 GR 504 1360 ET 4.1 1110 1170 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 3515 16 1110 1170 380 GR 504 1000 502 1035 500 GR 494 1130 492 1135 490.8 GR 496 1160 498 1165 500 GR 506 1270 440 510 1030 498 1104 490.2 1168 500 325 390 1090 498 1145 492 1170 502 PAGE 4 1055 497.4 1080 1110 492.3 1115 1190 502 1280 1110 496 1120 1150 494 1153 1185 504 1225 f PAGE 5 8/21/91 12:29:42 TI TRIBUTARY G1 OF GRAPEVINE CREEK - COPPELL, TEXAS - ENCROACHMENT RUN T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 100 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (G1ENC.DAT) DMG 8/91 Jl ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ -1 3 .0060 493.88 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM ITRACE 2 0 15 f PAGE 5 8/21/91 12:29:42 PAGE 6 ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 THIS RUN EXECUTED 8/21/91 12:29:52 ERROR CORR - 01,02 MODIFICATION - ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** NOTE- ASTERISK ( *) AT LEFT OF CROSS - SECTION NUMBER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST -YEAR EVENT - GOODWIN AN SUMMARY PRINTOUT SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELMIN SSTA ENDST TOPWID 120.000 3140.00 484.38 485.33 .00 7.82 1168.00 1235.00 473.50 1175.15 1232.83 57.68 120.000 3140.00 484.38 485.33 .00 7.82 1168.00 1235.00 473.50 1175.15 1232.83 57.68 220.000 3140.00 484.75 486.19 .00 10.92 1094.00 1115.00 474.50 1072.25 1132.80 60.55 220.000 3140.00 484.75 486.19 .00 10.91 1094.00 1115.00 474.50 1072.25 1132.80 60.55 * 230.000 3140.00 483.61 488.07 483.61 16.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 3140.00 483.61 488.07 483.61 16.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 3140.00 487.29 489.51 .00 11.96 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 3140.00 487.29 489.51 .00 11.96 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 340.000 3140.00 489.81 490.19 .00 5.00 1065.00 1125.00 474.80 1005.04 1136.75 131.70 * 340.000 3140.00 489.72 490.18 .00 5.60 1065.00 1112.00 474.80 1065.00 1125.00 60.00 * 560.000 3140.00 489.85 493.00 489.85 14.24 1100.00 1170.00 480.20 1133.65 1169.64 35.99 * 560.000 3140.00 489.90 493.00 489.90 14.14 1100.00 1170.00 480.20 1133.60 1169.70 36.10 * 770.000 3140.00 493.58 493.73 .00 3.20 1035.00 1145.00 480.20 1035.81 1267.50 231.70 * 770.000 3140.00 493.59 493.77 .00 3.43 1035.00 1145.00 480.20 1045.00 1145.00 100.00 945.000 3140.00 493.72 493.88 .00 3.23 1107.00 1277.00 478.60 1099.00 1330.10 231.10 * 945.000 3140.00 493.75 494.00 .00 4.04 1107.00 1277.00 478.60 1140.00 1277.00 137.00 * 1120.000 3140.00 493.89 494.01 .00 2.84 1250.00 1360.00 479.40 1245.38 1554.63 309.25 * 1120.000 3140.00 494.03 494.22 .00 3.55 1250.00 1360.00 479.40 1270.00 1350.00 80.00 * 1280.000 3140.00 493.76 494.32 .00 6.07 1260.00 1350.00 481.20 1196.38 1407.13 210.75 * 1280.000 3140.00 493.84 494.70 .00 7.46 1260.00 1350.00 481.20 1290.00 1350.00 60.00 1450.000 3140.00 494.39 494.89 .00 5.70 1320.00 1400.00 481.00 1260.37 1390.98 130.60 1450.000 3140.00 494.81 495.50 .00 6.69 1320.00 1385.00 481.00 1335.00 1385.00 50.00 8/21/91 12:29:42 PAGE 7 SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELKIN SSTA ENDST TOPWID * 1760.000 3140.00 495.16 495.28 .00 2.72 1270.00 1427.00 482.80 1071.97 1426.92 315.37 * 1760.000 3140.00 495.90 496.15 .00 4.01 1270.00 1412.00 482.80 1330.00 1412.00 82.00 * 1960.000 3140.00 494.64 495.95 .00 9.43 1158.00 1213.00 484.80 1161.01 1250.40 89.40 * 1960.000 3140.00 495.46 497.10 .00 10.25 1158.00 1213.00 484.80 1168.00 1206.00 38.00 * 2135.000 3140.00 496.46 496.60 .00 2.95 1035.00 1290.00 485.60 1038.48 1309.36 270.88 * 2135.000 3140.00 497.50 497.64 .00 3.08 1035.00 1200.00 485.60 1047.00 1200.00 153.00 * 2615.000 3140.00 497.23 497.83 .00 6.19 1075.00 1171.00 486.90 1075.34 1171.28 95.94 * 2615.000 3140.00 498.00 498.45 .00 5.40 1075.00 1171.00 486.90 1075.00 1171.00 96.00 3125.000 3140.00 499.50 500.25 .00 7.12 1055.00 1137.00 488.50 1036.28 1179.94 143.66 * 3125.000 3140.00 499.66 500.48 .00 7.26 1055.00 1137.00 488.50 1055.00 1137.00 82.00 3515.000 3140.00 501.33 502.12 .00 7.35 1110.00 1170.00 490.80 1053.48 1179.96 126.48 3515.000 3140.00 501.64 502.52 .00 7.51 1110.00 1170.00 490.80 1110.00 1170.00 60.00 8/21/91 12:29:42 SUMMARY OF ERRORS AND SPECIAL NOTES CAUTION SECNO= 230.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 230.000 PROFILE= 1 MINIMUM SPECIFIC ENERGY CAUTION SECNO= 230.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 230.000 PROFILE= 2 MINIMUM SPECIFIC ENERGY CAUTION SECNO= 290.000 PROFILE= 1 HYDRAULIC JUMP D.S. WARNING SECNO= 290.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 290.000 PROFILE= 2 HYDRAULIC JUMP D.S. WARNING SECNO= 290.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 340.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 560.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 560.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 560.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 560.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL WARNING SECNO= 770.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 770.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 945.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1120.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1280.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 1760.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1760.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1960.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 1960.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 2135.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO- 2135.000 PROFILE- 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 2615.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 2615.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE ) PAGE 8 WARNING SECNO= 3125.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 8/21/91 12:29:42 PAGE 9 FLOODWAY DATA, -YEAR EVENT - GOODWIN AN PROFILE NO. 2 - - - - - -- FLOODWAY - - - - - -- WATER SURFACE ELEVATION STATION WIDTH SECTION MEAN WITH WITHOUT DIFFERENCE AREA VELOCITY FLOODWAY FLOODWAY 120.000 58. 402. 7.8 484.4 484.4 .0 220.000 61. 390. 8.0 484.8 484.8 .0 230.000 21. 185. 16.9 483.6 483.6 .0 290.000 21. 263. 12.0 487.3 487.3 .0 340.000 60. 608. 5.2 489.7 489.8 -.1 560.000 36. 222. 14.1 489.9 489.9 .0 770.000 100. 915. 3.4 493.6 493.6 .0 945.000 137. 777. 4.0 493.7 493.7 .0 1120.000 80. 885. 3.5 494.0 493.9 .1 1280.000 60. 421. 7.5 493.8 493.8 .0 1450.000 50. 470. 6.7 494.8 494.4 .4 1760.000 82. 782. 4.0 495.9 495.2 .7 1960.000 38. 306. 10.3 495.5 494.6 .9 2135.000 153. 1018. 3.1 497.5 496.5 1.0 2615.000 96. 581. 5.4 498.0 497.2 .8 3125.000 82. 432. 7.3 499.7 499.5 .2 3515.000 60. 418. 7.5 501.6 501.3 .3 APPENDW E TRIBUTARY G-1 kle FLOODWAY MODEL WITH PROPOSED IMPROVED CONDITIONS 8/21/91 12:32:43 ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 ERROR CORR - 01,02 MODIFICATION - ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** T1 TRIBUTARY Gl OF GRAPEVINE CREEK - COPPELL, TEXAS - PROP.IMP. COND. W /ENC. T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 100 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GlIMPENC.DAT) - DMG 8/91 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q -1 2 0.006 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 1 0 -1 J3 VARIABLE CODES FOR SUMMARY PRINTOUT 38 43 1 3 2 26 21 54 4 0 200 J5 LPRNT NUMSEC * * * * * ** *REQUESTED SECTION NUMBERS * * * * * * ** -10 -10 QT 2 3140 3140 NC .065 .065 05 0.3 0.5 ET 4.1 1118 1235 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 120 11 1168 1235 0 0 0 GR 492 1000 490.5 1118 488.8 1168 475.2 GR 476.4 1208 478.1 1228 487.2 1235 490 GR 492.5 1330 ET 4.1 1065 1140 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 220 8 1094 1115 70 120 100 GR 490 1000 488.9 1015 487.5 1065 476.5 GR 474.5 1115 488.9 1140 489.5 1160 ET 4.1 1065 1140 X1 230 0 0 0 10 10 10 X3 10 1 ) 3 1 PAGE 1 THIS RUN EXECUTED 8/21/91 12:32:43 WSEL FQ 492.40 CHNIM ITRACE 22 42 53 1190 473.5 1240 492 1094 474.5 489.3 489.3 1200 1270 1100 1 ) 1 i 1 ) 1 ► ) ► 1 8/21/91 12:32:43 PAGE 2 SB 1.25 1.56 2.6 0 20.7 0.7 200 0.0 474.5 474.5 ET 4.1 1065 1140 STATION 2 +60 BETHEL SCHOOL ROAD Xi 290 0 0 0 60 60 60 X2 1 484.5 489.3 X3 10 490.0 490.0 BT 5 1000 491.5 0 1050 490.0 0 1100 489.3 0 BT 1150 489.5 0 1200 490.4 0 ET 4.1 1065 1125 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 340 9 1065 1125 50 50 50 GR 490 1000 488.1 1050 488.2 1065 477.0 1083 474.8 1093 GR 476.9 1100 477.5 1112 487.4 1125 491.5 1145 NC 0 0 0 0.1 0.3 ET 4.1 1133 1170 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 560 16 1100 1170 150 300 220 GR 494.3 1000 497.1 1050 494.3 1080 494.2 1100 490.4 1133 GR 481.2 1144 480.2 1150 480.5 1156 490.1 1170 492.3 1220 GR 492.9 1250 493.9 1300 495.2 1350 496 1370 498 1395 GR 500 1405 ET 4.1 1045 1145 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 770 16 1035 1145 200 160 210 GR 499.8 1000 498.9 1015 493.9 1035 489.8 1045 483.1 1065 GR 480.2 1075 482.6 1085 482.9 1105 486.7 1135 490.2 1145 GR 491.9 1175 492.1 1225 494 1280 496 1435 498 1450 GR 500 1480 ET 4.1 1140 1277 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS X1 945 17 1116 1277 215 30 175 GR 504.2 1000 503.0 1050 501.5 1077 496.0 1095 496.0 1116 GR 483.6 1140 478.6 1150 483.1 1160 485.9 1185 489.4 1205 GR 493.4 1277 493.7 1327 494.3 1400 495.2 1440 496 1530 GR 498 1545 500 1570 ET 4.1 1270 1350 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS X1 1120 18 1250 1360 315 30 175 GR 501.1 1000 499.3 1050 497.4 1100 497.0 1150 497.0 1200 GR 497.0 1240 493.4 1250 483.7 1270 483.7 1290 479.4 1300 GR 483.4 1307 483.0 1350 490 1360 492 1385 494 1565 GR 496 1620 498.0 1640 500.0 1660 8/21/91 12:32:43 PAGE 3 ET 4.1 1290 1350 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS X1 1280 20 1260 1350 140 120 160 GR 500 1000 498 1025 497.0 1050 497.0 1100 497.0 1150 GR 497.0 1200 497.0 1250 497.0 1260 491.2 1280 484.3 1290 GR 483.2 1295 481.2 1300 482.6 1306 487.4 1320 490.2 1335 GR 492.0 1350 494 1415 496 1450 498 1460 500 1480 ET 4.1 1335 1385 CROSS - SECTION TAKEN FROM 2' TOPO MAP WITH PROPOSED IMPROVEMENTS X1 1450 21 1320 1400 140 240 170 GR 500 1000 498 1020 498 1300 494 1312 492 1318 GR 490 1320 488 1330 486 1335 484 1350 482 1355 GR 481 1360 482 1361 484 1365 486 1370 488 1375 GR 490 1380 492 1385 494 1390 496 1395 498 1398 GR 500 1400 NC .055 .055 05 0.1 0.3 ET 4.1 1330 1412 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS %1 1760 18 1307 1427 140 350 310 GR 500 1000 498 1015 497 1030 497.0 1100 497.0 1150 GR 497.0 1200 497.0 1250 497.0 1307 487.6 1335 486.9 1355 GR 485.6 1396 482.8 1400 485.2 1402 487.6 1412 495.2 1427 GR 495.9 1437 498.1 1487 499.1 1500 ET 4.1 1168 1206 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY WITH PROPOSED IMPROVEMENTS X1 1960 15 1158 1213 170 220 200 GR 500 1000 498.2 1123 498.0 1158 490.1 1168 485.6 1183 GR 484.8 1186 485.8 1189 488.4 1201 493.1 1213 492.0 1221 GR 494.7 1251 495.8 1286 497.0 1316 498.4 1386 499.2 1436 ET 4.1 1047 1200 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 2135 13 1035 1290 120 80 175 GR 501 1000 499.7 1035 488.5 1047 486.3 1057 485.6 1060 GR 487.4 1064 490.2 1074 490.0 1090 492 1150 494 1230 GR 496 1290 498 1375 500 1420 NC .05 .05 .045 ET 4.1 1075 1171 CROSS- SECTION TAKEN FROM G&M FIELD SURVEY X1 2615 14 1075 1171 460 270 480 GR 502 1000 500 1025 498 1060 497.3 1075 491.6 1105 GR 490.4 1140 488.5 1145 486.9 1150 488.9 1156 497.2 1171 GR 499.1 1186 500 1230 502 1270 504 1340 440 510 1030 498 1104 490.2 1168 8/21/91 12:32:43 390 1090 ET 1145 492 4.1 1055 1137 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 3125 16 1055 1137 390 GR 504 1000 502 1015 500 GR 492.3 1095 490.2 1099 488.5 GR 493.8 1127 497.1 1137 498.9 GR 504 1360 ET 4.1 1110 1170 CROSS - SECTION TAKEN FROM G&M FIELD SURVEY X1 3515 16 1110 1170 380 GR 504 1000 502 1035 500 GR 494 1130 492 1135 490.8 GR 496 1160 498 1165 500 GR 506 1270 440 510 1030 498 1104 490.2 1168 500 325 390 1090 498 1145 492 1170 502 1 PAGE 4 1055 497.4 1080 1110 492.3 1115 1190 502 1280 1110 496 1120 1150 494 1153 1185 504 1225 Li.l ITRACE PAGE 5 8/21/91 12:32:43 T1 TRIBUTARY Gl OF GRAPEVINE CREEK - COPPELL, TEXAS - PROP. IMP. COND. W /ENC. T2 JOYCE - MYERS ENTERPRISES & MATTHEWS SOUTHWEST INVESTMENTS, INC. T3 100 -YEAR EVENT - GOODWIN AND MARSHALL, INC. (GIIMPENC.DAT) Jl ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL -1 3 .0060 493.88 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM 2 0 15 Li.l ITRACE PAGE 5 8/21/91 12 :32:43 PAGE 6 ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC2 RELEASE DATED SEP 88 UPDATED APR 1989 THIS RUN EXECUTED 8/21/91 12:32:52 ERROR CORR - 01,02 MODIFICATION - ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** NOTE- ASTERISK ( *) AT LEFT OF CROSS - SECTION NUMBER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST -YEAR EVENT - GOODWIN AN SUMMARY PRINTOUT SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELKIN SSTA ENDST TOPWID 120.000 3140.00 484.38 485.33 .00 7.82 1168.00 1235.00 473.50 1175.15 1232.83 57.68 120.000 3140.00 484.38 485.33 .00 7.82 1168.00 1235.00 473.50 1175.15 1232.83 57.68 220.000 3140.00 484.75 486.19 .00 10.92 1094.00 1115.00 474.50 1072.25 1132.80 60.55 220.000 3140.00 484.75 486.19 .00 10.91 1094.00 1115.00 474.50 1072.25 1132.80 60.55 * 230.000 3140.00 483.61 488.07 483.61 16.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 230.000 3140.00 483.61 488.07 483.61 16.95 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 3140.00 487.29 489.51 .00 11.96 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 290.000 3140.00 487.29 489.51 .00 11.96 1094.00 1115.00 474.50 1094.00 1115.00 21.00 * 340.000 3140.00 489.81 490.19 .00 5.00 1065.00 1125.00 474.80 1005.04 1136.75 131.70 * 340.000 3140.00 489.72 490.18 .00 5.60 1065.00 1112.00 474.80 1065.00 1125.00 60.00 * 560.000 3140.00 489.85 493.00 489.85 14.24 1100.00 1170.00 480.20 1133.65 1169.64 35.99 * 560.000 3140.00 489.90 493.00 489.90 14.14 1100.00 1170.00 480.20 1133.60 1169.70 36.10 * 770.000 3140.00 493.58 493.73 .00 3.20 1035.00 1145.00 480.20 1035.81 1267.50 231.70 * 770.000 3140.00 493.59 493.77 .00 3.43 1035.00 1145.00 480.20 1045.00 1145.00 100.00 * 945.000 3140.00 493.71 493.91 .00 3.61 1116.00 1277.00 478.60 1120.45 1327.40 206.96 * 945.000 3140.00 493.75 494.00 .00 4.04 1116.00 1277.00 478.60 1140.00 1277.00 137.00 * 1120.000 3140.00 493.94 494.06 .00 2.81 1250.00 1360.00 479.40 1248.50 1559.48 310.97 * 1120.000 3140.00 494.03 494.22 .00 3.55 1250.00 1360.00 479.40 1270.00 1350.00 80.00 * 1280.000 3140.00 493.77 494.37 .00 6.29 1260.00 1350.00 481.20 1271.14 1407.47 136.32 * 1280.000 3140.00 493.84 494.70 .00 7.46 1260.00 1350.00 481.20 1290.00 1350.00 60.00 1450.000 3140.00 494.44 494.93 .00 5.66 1320.00 1400.00 481.00 1310.68 1391.10 80.42 1450.000 3140.00 494.81 495.50 .00 6.69 1320.00 1385.00 481.00 1335.00 1385.00 50.00 8/21/91 12:32:43 PAGE 7 SECNO Q CWSEL EG CRIWS VCH STCHL STCHR ELMIN SSTA ENDST TOPWID * 1760.000 3140.00 495.27 495.49 .00 3.78 1307.00 1427.00 482.80 1312.16 1427.96 115.80 * 1760.000 3140.00 495.90 496.15 .00 4.07 1307.00 1412.00 482.80 1330.00 1412.00 82.00 * 1960.000 3140.00 495.20 496.22 .00 8.44 1158.00 1213.00 484.80 1161.53 1267.20 105.67 * 1960.000 3140.00 495.48 497.11 .00 10.23 1158.00 1213.00 484.80 1168.00 1206.00 38.00 * 2135.000 3140.00 496.63 496.75 .00 2.84 1035.00 1290.00 485.60 1038.30 1316.26 277.96 * 2135.000 3140.00 497.51 497.65 .00 3.08 1035.00 1200.00 485.60 1047.00 1200.00 153.00 * 2615.000 3140.00 497.30 497.88 .00 6.11 1075.00 1171.00 486.90 1074.89 1171.83 96.94 * 2615.000 3140.00 498.01 498.46 .00 5.40 1075.00 1171.00 486.90 1075.00 1171.00 96.00 3125.000 3140.00 499.50 500.25 .00 7.10 1055.00 1137.00 488.50 1036.19 1180.09 143.89 * 3125.000 3140.00 499.66 500.48 .00 7.26 1055.00 1137.00 488.50 1055.00 1137.00 82.00 3515.000 3140.00 501.33 502.12 .00 7.35 1110.00 1170.00 490.80 1053.50 1179.95 126.45 3515.000 3140.00 501.64 502.52 .00 7.51 1110.00 1170.00 490.80 1110.00 1170.00 60.00 8/21/91 12:32 :43 SUMMARY OF ERRORS AND SPECIAL NOTES CAUTION SECNO= CAUTION SECNO= CAUTION SECNO= CAUTION SECNO= CAUTION SECNO= WARNING SECNO= CAUTION SECNO- WARNING SECNO= WARNING SECNO= WARNING SECNO= CAUTION SECNO= CAUTION SECNO- CAUTION SECNO= CAUTION SECNO= CAUTION SECNO- CAUTION SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO- WARNING SECNO= WARNING SECNO= WARNING SECNO- WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= WARNING SECNO= 230.000 PROFILE= 1 CRITICAL DEPTH ASSUMED 230.000 PROFILE= 1 MINIMUM SPECIFIC ENERGY 230.000 PROFILE= 2 CRITICAL DEPTH ASSUMED 230.000 PROFILE= 2 MINIMUM SPECIFIC ENERGY 290.000 PROFILE= 1 HYDRAULIC JUMP D.S. 290.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 290.000 PROFILE= 2 HYDRAULIC JUMP D.S. 290.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 340.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 340.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 560.000 PROFILE= 1 CRITICAL DEPTH ASSUMED 560.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY 560.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL 560.000 PROFILE= 2 CRITICAL DEPTH ASSUMED 560.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY 560.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL 770.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 770.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 945.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 945.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1120.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1120.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1280.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1280.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1760.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1960.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE- 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2135.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE- 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2615.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 1 PAGE 8 WARNING SECNO= 3125.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 8/21/91 12 :32:43 PAGE 9 FLOODWAY DATA, -YEAR EVENT - GOODWIN AN PROFILE NO. 2 - - - - - -- FLOODWAY - - - - - -- WATER SURFACE ELEVATION STATION WIDTH SECTION MEAN WITH WITHOUT DIFFERENCE AREA VELOCITY FLOODWAY FLOODWAY 120.000 58. 402. 7.8 484.4 484.4 .0 220.000 61. 390. 8.0 484.8 484.8 .0 230.000 21. 185. 16.9 483.6 483.6 .0 290.000 21. 263. 12.0 487.3 487.3 .0 340.000 60. 608. 5.2 489.7 489.8 -.1 560.000 36. 222. 14.1 489.9 489.9 .0 770.000 100. 915. 3.4 493.6 493.6 .0 945.000 137. 777. 4.0 493.7 493.7 .0 1120.000 80. 885. 3.5 494.0 493.9 .1 1280.000 60. 421. 7.5 493.8 493.8 .0 1450.000 50. 470. 6.7 494.8 494.4 .4 1760.000 82. 771. 4.1 495.9 495.3 .6 1960.000 38. 307. 10.2 495.5 495.2 .3 2135.000 153. 1020. 3.1 497.5 496.6 .9 2615.000 96. 582. 5.4 498.0 497.3 .7 3125.000 82. 432. 7.3 499.7 499.5 .2 3515.000 60. 418. 7.5 501.6 501.3 .3