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FS9901-SY 980930_ Morrison Hydrology Engineering, Inc. 210 Arnold Ave- Arlington, Texas 76010 Metro (817) 461 -0321 Fax (817) 274 -1338 F,Mai1: ronmor7777®aoLcom MEMORANDUM FOR RECORD Date: September 30, 1998 Subject: Meeting with the following: Mr. Ken Griffin, P.E. Director of Engineering, City of Coppell Mr. Walter Skipwith, P.E. Albert Halff and Associates, Inc. Mr. Kelly Jordan, Developer Mr. Ron Morrison, P.E., C.F.M. Morrison Hydrology Engineering, Inc. The purpose of this meeting was to discuss the hydraulic analysis of Denton Creek in relation to Windsor Estates. Albert H. Halff and Associates ( Halfl) has been asked by the city to review the report for this project. Morrison Hydrology Engineering, Inc. (MHE, Inc.) prepared a report for the project using the effective FEMA model. A general discussion with Han the city, and MHE concluded that the FEMA model prepared by the Corps of Engineers did not adequately model the Denton Creek and Ehn Fork of the Trinity River confluence. So everyone agreed that the initial MHE report should be modified to correct the FEMA model. To this end, MHE prepared a response that included a revised model of the Denton Creek, Elm Fork confluence. This revised model incorporated a Denton Creek model that used the 100 year Elm Fork floodplain as the left overbank assuming no conveyance below the Elm Fork 100 year water surface. This model essentially considered the Elm Fork floodplain as a constant level lake with no conveyance below the water surface. Halff did not agree with this approach. They suggested that it would be more accurate to use the high ground between Denton Creek and the Elm Fork as a cut off point between Denton Creek and the Elm Fork. After some discussion it was decided that there is a good possibility that the Denton Creek 100 -year floodplain elevation may exceed the high ground between the Elm Fork and Denton Creek. If this occurs the city, MHE, and Halff agree that the best way to address this would be to use a split flow (Weir option) to determine the flow that should be subtracted from Denton Creek downstream Of particular concern is the existing subdivision downstream of Deforest Road. If our study finds higher 100 -year flood levels on Denton Creek downstream of Deforest Road, we may discover that portions of the subdivision would be flooded in the 100 -year event. Morrison Hydrology Engineering, Inc. Page -2- We want to be very careful if this happens to make sure that our model approach is appropriate. Some particular items were discussed and agreed to by all parties as follows: 1. The revised model will generally follow the Halff guidelines for cross section locations using the high ground indicated in their review comments. The split flow (Weir overflow) HEC2 option will be used in the event that the 100 year flood elevations for Denton Creek exceed the high ground elevations. 2. The currently effective FEMA model will be used as the base for the study. This model will be modified by adding downstream cross sections generally following Halff's approach in their review letter. These cross sections will be developed using the information obtained from Craig Loftin, Ft. Worth District Corps of Engineers for the Denton Creek channel and topographic maps completed for the Corridor Development Certificate (CDC) study. These topographic maps are currently available in microstation. Halff has these maps and will provide them to us in a format that we can use in Autocad. 3. Everyone agreed that the sections through the Windsor Estates site should have a left overbank that follows the high ground as shown in the Halff review comments. 4. The Windsor Estates proposed lake should be modeled considering appropriate effective flow and conveyance below the constant pool at no more than 50 percent of the depth. 5. Halff agreed to help NM with the storage computations by providing information on some inexpensive (possibly shareware) programs to determine storage volumes. 6. The available ultimate condition discharges for the Elm Fork Trinity and Denton Creek will be used as per city ordinance. 7. The 500 -year discharge can be used instead of the Standard Project Flood (SPF) discharge, as required by the CDC process. The tithing for this project was discussed. MITE agreed to provide a revised existing condition model for HalTs review (incorporating the changes discussed in memo) by "- about Wednesday of next week (October 7, 1998). Halff agreed to review the information within 48 hours of receipt of the revised model (We assume this means real time rather than working hours). This means we might have the Halff review of our October 7, 1998 submittal by Friday (October 9, 1998). If the Halff review requires a second revised ^ I Morrison Hydrology Engineering, Inc. Page 3- model and another submittal, we would expect similar times for the resubmittal. This means a worst case would result in a revised second model by Friday October 16 and a final review by Tuesday October 20, 1998. - Depending on whether a second revised model is needed the timing for a final report which contains all information required by the city, FEMA and CDC is as follows: Final Report (No second revision) Monday October 19, 1998 Final Report (with second revision) Monday October 26, 1998 Walter Skipwith with Halff Associates was very helpful and should be commended on his positive attitude and spirit of cooperation. Mr. Ken Griffin, as always, took a leadership role. When this important project is completed, it will be in no small measure to Mr. Griffin's leadership. r. Ronald W. Morison, P.E., C.F.M. Senior Hydrologist 214 739 0095 10/02/98 FRI 15:58 FAX 214 739 0095 RALFF ASSOC Lr r r ■ow CCC Halff Associates, Inc 8618 Northwest )346 Drive Dallas, Texas 75225-4211 (214)346 -6200 ENGINEERS ARCHITECTS SCIENTISTS PLANNERS SURVEYORS Fax(214)730.0108 l► \ TO: R Morrison,BE ec: Ken't;iiffln, PE 9�r� 3o� FAX #: 8171274 -1338 DATE: October 2, 1998 AVO: 17091 PROJECT: Review of Windsor Estates FROM: Walter E. Skipwith, PE Email. @halN.com P OF PAGES 1 (including cover sheet) O URGENT COPY TO FOLLOW By MAIL: (].,PLEASE REPLY ❑ YES ❑ NO FOR REVIEW ITEMS SENT: Fax Cover Sheet t COMMENTS: t I have the following comments on your September 30, 1998 Memo which I received via fax on 10/02/98: Item 2. Digital (CD ROM) and hard copy files of the Trinity topo were made for your use and where available for pickup at Halff Associates Dallas office on 9/29/98. Item 3. Halff did not provide section alignment for the Windsor Estates site. I do recall suggesting that some sections may terminate at the levee in the left overbank of Denton Creek. Item 5. 1 asked around but was not able to locate a free dirt computation program for you. Proprietary programs that we use include Geopac and Eaglepoint. You could set it up on a spreadsheet fairly easily or try the ASCE Website for possible free or inexpensive software. Please call if you have any questions- SIGNED: NOTE: The comments on and attachment to this cover sheet are intended only for the use of the individual or entity to which It is addressed, and may Contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the Intended recipient, or the employee or agent responsible for delivering the message to the intended recipient. you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. if you have rawived this oommunication in error, please notify us immediately by telephone and return the original to us, at the above address, via the U. S. Postal Service. Thank you. Morrison Hydrology Engineering, Ina 210ArnoldAva Arlington, Texas 76010 Metro (817) 461 -0321 Fax (817) 274 -1338 E -Mail: ronmor7777@aoLcom October 9, 1998 Mr, Kenneth M, Griffin, RE, Assistant City Manager City Engineer City of Coppell 255 Parkway Blvd. P.O. Box 478 Coppell, Texas 75019 Off 214- 304 -3679 Metro 214 -471 -2251 Fax 214 -304 3673 Re: Request for review of Analysis of Denton Creek, City of Coppell, Texas Dear Mr. Gnffen: As we discussed at our meeting on September 30, 1998 we have completed an analysis of Denton Creek for the 100 -year existing and ultimate flows. The purpose of our meeting in September and the most significant problem with the review of the subject analysis involved starting conditions. For this reason we have provided only the existing condition 100 year. We are aware that the final report must address project conditions, storage requirements and all the other elements of submittal of a Conditional Letter of Map Revision. We have provided two models both in hard copy and on disk File DES represents the existing condition analysis for the 100 -year analysis with existing flows, and file DESU represents the existing condition analysis for the 100 -year analysis with ultimate flows. We will hand carry a copy of this information to the City and Halff and Associates. We are available to discuss this at any time. Call me if you have questions. ' cerely, (� VV' Ronald W. Morrison, P.E., C.F.M. Senior Hydrologist Skipwith, Walter From: Skipwith, Walter Sent: Monday, October 12, 1998 2:58 PM To: 'Morrison, Ron' Subject: Third Review- Winsdor Estates on Denton Creek Ron We received your submittal last Thursday afternoon. Unfortunately, I was out of town Thursday and Friday. However, I have made a quick review of the Existing model- Future Discharges and have the following comments: • Discharge reduction due to split flow should begin at section 12 Sections 13 and 14 should be evaluated for full flow (no reduction due to split) • Geometry for sections 3 through 12 should end at the gun club embankment. If you include top of embankment along the embankment in the backwater model section, you are counting this conveyance twice, due to the split flow by weir Section 14 bank stations are wrong 1 recommend adding 1 or 2 sections between Section 1 and 2 • Denton Creek channel "n" value seems low considering meanders, etc. The first weir at section 12 needs better definition. It looks to me as if 950 should be elev. 458 + / -, with a 451.1 occurring at 600 or 700. This will tend to reduce the flow split at this location. Please call me if you have any questions. Walter 91 6.�o Page 1 i EXISTING CONDITION DINTGN CREEx FILR:DES rww :a :rwara «aaawwaawwwrrrwarawarru «a+wesr wa+r +♦•raararaar : +sarrwrrrwaau aaarar +: • NEC -2 1MISR SURFACE FROFYLRS + • Varaim 4.6.2; May 1991 • RUN DATE OSOCT9S TIME 23.39:25 + waa+aa +aa ra as ♦rraw+ +w arawwer waaarww+a+e :raw+ I + U.E. ARMY CORPS OF ENGnum • HYDROLOGIC ENGINEERING CENT • 609 SECOND STREET, SUITB D + DAVIS, CALIFORNIA 95616 -465 • (916) 756 -1104 x x xxxxaXC xxxxx xxxxx X I x x x x x I I I I I xxxxXXX xxxx x xxxxx xxxxx X x x x x •— x x x x x x X x xxxxaxx xxxxx ,. xxxxxxx 3 + U.E. ARMY CORPS OF ENGnum • HYDROLOGIC ENGINEERING CENT • 609 SECOND STREET, SUITB D + DAVIS, CALIFORNIA 95616 -465 • (916) 756 -1104 EXISTING CONDITION DETTON CEffiC FILE:DBS 080CT96 23:39:25 aaaaarr +araaaaarrrraera :aarrrraaaaaaa r• 1@C -2 HATER SURFACE PROFILES V.rwim 4.6.2; My 1991 • ua• :raaaar +arrrrrarsrararrraarr uar PAGE 1 THIS BUN EXECUTED OB0M98 23:39:25 SPLIT FLOW BEING PERFORNOD SF DEWNN CREEL VIER SPLIT FLOW ANALYSIS IN LEFT BANE BETWEEN SECTION 19230 AND 12 De SECT U8 SECT RETURN COB" NB 2 12 19230 -1 2.8 NIRR COORDINATES STA 1 ELS 1 STA 2 E113 2 11C 0 451.3 950 151.1 IN LEFT BAM BETWEEN SECT. 12 AND 11 D8 SECT U8 SECT RETURN COBFF r. NB 2 11 12 -1 2.8 WIER COORDINATES STA 3 BLS 1 STA 2 SLR 2 WC 0 451.1 340 451.1 ..-. TW LEFT BANE BETWEEN BELT. 11 AND 30 D8 SECT U8 SECT RETURN CORBY NS 2 10 11 -1 2.8 WIER COORDINATES .—. STA 1 SLR 1 STA 2 SIR 2 WC 0 451.1 280 451.1 IN LEFT BANE BETWEEN SECT. 10 AND 9 178 SECT US SECT RETURN C0B" N8 2 9 10 -1 2.9 WIER 00ORDINATHO STA 1 BLE 1 STA 2 E1R 2 WC 0 451.1 280 451.1 ^ IN LEFT BANK BETWEEN SECT. 9 AND 8 178 SECT US SECT RETURN COB" ♦ N8 2 8 9 -1 2.8 WIER COORDINATES STA 1 BLS 1 STA 2 ELM 2 wC 0 450.8 220 451.1 i PAGE 1 THIS BUN EXECUTED OB0M98 23:39:25 RAISTINO CONDITION DENTON CRERR FILE:DRB PAGE 2 OSOCT98 23:39:25 TN LEFT BANK ESTNBBf7 88CT. 8 AND 2 D8 SECf U8 SECT RETURN CON" WE 2 2 8 -1 2.8 ^ NINE COORDINATES STA 1 ELS 1 STA 2 RLM 2 NO 0 450.8 380 450.8 TN LEFT BANK EETWENE SECT. 2 AND 1 ^ DS SECT UB SECT RETURN COEPP NS 2 1 2 -1 2.8 NIM COORDINATES STA 1 ELM 1 STA 2 ELM 2 ^ NO 0 450.6 1060 450.8 IN LEFT BANK BETWEEN SECT. 1 AND 0 D8 SECT US SECT RETURN COEFF NS 2 0 1 -1 2.8 ^ 11133E COORDINATES STA 1 ELK 1 STA 2 ELM 2 NO 0 450.4 700 450.6 r� r�. n EXISTING CONDITION DENTON CRBCR FILE:DSS OBOCT98 21:39:25 PAGE 3 T1 DENTON CREAK EXISTING CONDITION split fla T2 COPPBLL, TEXAS T3 100 -YEAR FILEt DEB J1 ICHRCX INQ NINV IDIR STRT METRIC HVINS Q NEEL FQ 0 2 0 0 0 0 0 0 447.06 ^ J2 NPROF IPIM PRFVB XSECV XBRCH PH ALLDC IBN ODIIN ITRACE -1 0 -1 ^ J3 VARIABLE CODES FOR SUMMARY PRINTOUT 38 1 43 42 26 4 53 54 JS LPRHT NUMSEC **'* ** *'REQUESTED SECTION -10 -10 QT 1 48600 ' r NC .07 .09 .06 .1 .3 STARTED WITH THE PENH EFFECTIVE MODEL _ HECRAS SECTION 997 +08 X1 100040 49 4035 4215 760 760 760 X3 9900 470 GR 451 1000 444 1030 441.5 1190 439.7 1200 439.7 1830 GR 442 1840 440.5 2500 441.2 2925 442.5 3080 443 3180 GR 443 3700 444.5 3880 444.9 4000 445.7 4035 430.9 4090 OR 430 4180 443 4215 442.9 4290 444.5 4390 442.9 $415 ^ OR 443.4 5500 442.1 5600 444.5 5685 443 6640 442.5 6700 GB 442.5 6800 441.4 7000 440.2 7115 439.6 7500 440 7600 GR 441.6 7800 442 8200 443.6 8800 443.5 8900 446.5 9200 OR 446.5 9350 447.5 9600 447.3 9650 428.3 9680 438.5 9720 OR 446 9740 447.5 9800 441 10400 446.9 10900 447 11000 ^ OR 448 11100 455 11200 457.5 11300 459.2 11420 USED FLONLINE FROM PENA SECTION ADJUSTED FOR CONSTANT SLOPS SLOPE: 428.5- 429.3/ 4790. .000167 FL. 428.6 ^ CL STATION. 2000 NC .035 .055 .045 .1 .3 QT 1 20600 A 0 35 1960 2060 1500 430 S90 ^ OR 450.4 660 450 760 448 770 446 780 444 790 OR 442 goo 440 805 440 814 442 820 443.1 890 OR 444 1080 444 1110 442.7 1125 444 1210 444.7 1250 • OR 444 1315 444 1345 446 1520 447.1 1640 446 1800 OR 446 1860 446 1960 434 1980 428.5 1995 428.5 2005 OR 434 2020 446 2050 449 2060 448 2140 448 2160 GR 450 2700 452 I 2765 454 2790 456 2800 458 2840 SLOPE: 428.5- 429.3/ 4790. .000167 .� PL. 428.9 n. EXISTIN2 CONDITION DENTON CnHK FILRIDE8 PAO8 4 1100 800 OSOCT98 23:39:25 448 645 446 660 444 665 442 CL STATION- 3000 715 444.2 820 7 1 1 22 2860 3050 ^ GR 450.6 500 450 610 3044 OR 442 675 440 680 OR 445.1 1260 446 1410 1120 OR 436 2970 420.9 2995 �. OR 452 3050 452 3190 1882 CRANNBI. SRCTION TAXIN FROM CORPS STAFF STUDY 1962 xi 2 25 1913 2057 ^ GR 450.8 1050 450 1090 350 OR 442 1130 442 1145 870 GR 449.2 1450 449.2 1480 1960 OR 452 1913 450 1942 ^ OR 429.3 2005 438 2020 2924 CHAN14M BRCTION TAKEN FROM CORPS STAFF STUDY 2940 x1 3 27 2925 3068 ... OR 451.1 370 451.1 660 GR 451 1560 451 1780 1170 GR 446 2090 444 2100 2110 GR 450 2370 452 2810 2200 OR 429.7 2995 429.7 3005 2940 GR 452 3068 452.9 3130 3035 CHANNEL SUCTION TAXEN FROM CORPG STAFF STUDY 3058 X1 4 29 2940 3058 OR 451.1 420 451.1 710 OR 451 1620 451 1840 �. OR J44 2150 444 2185 2150 OR 462 2600 452.8 2860 2480 OR 429.7 2995 429.7 3005 2995 OR 450 3090 450 3100 3037 CHANNEL SECTION TAXER FROM CORPS STAFF STUDY ^ xl 5 34 2947 3080 3230 GR 45111 450 451.1 740 OR 451 1640 451 1860 OR 444 2180 444 2210 OR 452 2830 452.8 2893 OR 429.8 3005 438 3025 GR 449 3050 450 3065 OR 444 3210 445 3215 ClUkHt EL SUCTION TAXEi FROM CORPS STAFF STUDY PAO8 4 1100 800 1700 448 645 446 660 444 665 442 695 444 715 444.2 820 446 2150 448 2860 446 2960 428.9 3005 436 3010 450 3044 1150 1700 2500 448 1110 446 1115 444 1120 444 1155 446 1170 448 1190 450 1650 452 1640 452.1 1882 446 1962 438 1974 429.3 1995 450 2057 452 2122 452.3 2130 300 350 380 450.6 870 451 1120 451.6 1350 450.8 1960 450 2050 448 2065 414 2130 446 2140 448 2150 452 2924 450 2940 438 2978 438 3024 444 3035 450 3058 sp so so 450.6 920 4S1 1170 451.6 1400 450.8 2010 448 2110 446 2420 446 2190 4 }8 2200 450 2460 452 2925 450 2940 438 2978 438 3024 444 3035 450 3058 450 3140 450 3170 20 50 50 450.6 950 451 1200 451.6 1430 450.8 2040 449 2140 446 2150 446 2220 448 2225 450 2480 452 2947 438 2977 429.8 2995 446 3030 447 3035 449 3037 450 3080 450 3170 444 3195 450 3230 451.6 3480 I EXISTING CONDITION DENTON CREEK FILS:DRS OSOCT98 23:39:25 K1 6 31 2950 3068 60 OR 451.1 495 451.1 790 450.6 OR 451 1690 451 1910 450.8 OR 444 2220 444 2255 446 OR 452 2880 452 2930 438 OR 438 3025 450 3044 452 OR 446 3175 446 3210 448 OR 450 1725 2470 450 2780 CRANNRL SECTION TAKEN FROM CORPS STAFF STUDY 443.1 R1 7 19 2900 3050. 220 OR 450.8 2400 444 2440 444 OR 450 2900 438 2983 430 OR 4SO 3050 448 3090 446 OR 448 3410 448 3575 450 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY K1 8 42 2885 3265 170 OR 451.1 630 451.1 920 450.6 OR 451 1820 451 2040 450.8 OR 444 2105 444 2325 446 OR 450 2420 449.9 2440 450 OR 448 2830 450 2840 752 OR 450 2933 448 2943 438 OR 438 3024 448 3070 448 OR 452 3255 432 3280 `SO OR 4SO 3605 450 3715 CFIANNEL SECTION TAKEN FROM COIFS STAFF STUDY CL STATION. 3000 X1 9 34 2960 3065 210 OR 451.1 990 451.1 1280 450.6 OR 451 2170 451 2400 450 OR 444 2450 442 2460 444 OR 450 2510 450.6 2640 451.6 OR 430.5 2995 430.5 3005 438 OR 449 3065 450 3130 451 OR 450 3535 448 3600 440 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY YS 30 31 2936 3080 200 OR 451.1 1140 451.1 1430 450.6 OR 451 2130 450 2315 448 • OR 446 2365 448 2390 4SO OR 452.5 2850 452.1 2920 452 OR 430.6 2995 430.6 3005 438 OR 451 3265 450 3330 450 OR 450 3865 1 C NNEL SECTION TAKEN FROM CORPS STAFF STUDY FADE S 100 8o 990 431 1250 451.6 1470 2080 448 2180 446 2190 2260 448 2270 450 2520 2977 429.0 2995 429.8 3005 1068 450 3090 - 450 3110 3280 448 3465 450 3615 100 160 2470 450 2490 450.7 2800 2995 430 3005 438 3017 3280 446 3320 448 3355 3735 450 3830 438 2987 110 200 3036 448 3050 1125 451 1380 451.6 1610 2220 449 2290 446 2295 2335 448 2390 450 2370 2470 450 2780 448 2820 2860 443.1 2885 452 2918 2976 430.2 2995 430.2 3005 3080 446 3105 450 3145 3290 448 3305 448 3455 300 260 1480 451 1730 451.6 1960 2420 448 2430 446 2440 2470 446 2483 448 2490 2810 450 2960 438 2987 3013 446 3036 448 3050 3200 451 3280 430 3350 3800 450 3880 60 150 1640 451 1890 451.6 2120 2350 446 2355 444 2360 2500 450.8 2630 4S2 2820 2936 450 2948 438 2985 3015 450 3050 4S1 3080 3538 448 3585 448 3780 I I OBOCI98 23:39:25 EXISTING CONDITION DENTON CRRRX FILE:DES PAGE 6 X1 11 22 2953 3055 220 140 190 OR 451.1 1180 441.1 1460 450.6 1670 451 1920 448 2100 ^ OR 447 2180 448 2460 449.9 2630 450 2690 450 2953 OR 438 2987 430.8 2995 430.6 3005 438 3017 450 3043 OR 451 3055 451 3310 .450 3360 450 3450 448 3560 OR 448 3795 450 3885 CHA141M SECTION TAPOW FROM CORPS STAFF STUDY X1 12 26 2860 3120 190 180 185 OR 451.1 1380 451.1 1660 450.6 1860 448 1940 446 1950 ^ OR 446 2000 447.2 2160 446.9 2340 448 2430 449.3 2510 OR 4S0 2630 430 2640 449.2 2680 450 2770 451.2 2860 OR 450 2898 418 2940 431 2995 431 3005 438 3060 OR 452 3120 452 3240 451 3330 448 3645 448 3785 OR 450 3883 ^ USE FWQ CROSS SECTION DATA ON TRIG SECTION for tha channel portim X1 13 24 5510 5960 220 225 230 OR 458 4210 450 4260 446.7 4340 448 4720 448.3 4950 ^ OR 448.8 5125 450 5290 451.4 5510 448.0 5551.8 431.4 5627 OR 431.4 5767 447 5812 447 5820 440 5830 431.4 5845 OR 440 5835 440 5920 450. 5950 453 5960 453 6000 OR 452 6155 451 6420 430 6610 456 6610 USE PENA CROSS SECTION DATA ON THIS SECTION far the charnel pertim ^ X1 14 12 2810 3160 175 110 170 OR 448 4240 450 4300 446.7 4380 447.5 4820 448 4970 OR 449.6 5300 450 5430 451.3 5510 450 5553 431.7 $617 OR 431.7 5777 448 5842.2 446.0 5860 445 5870 440 5880 ^ OR 431.7 5897 436 5975 440 5980 450 6015 453 6020 OR 452 6125 452 6210 453 6240 453 6260 452 6285 �- OR 451 6335 451 6500 451 6535 450 6565 450 6680 OR 450 6693 470 6695 i.. CHANCED DISTANCE TO MATCH MEASURED TOPO NM 5 .045 5704 .035 5996 .045 6070 .033 6190 .055 ME 7350 ET 5208 7350 2.1 7.1 5208 6190 X1 19930 53 5704 6190 440 750 SOU X3 0 0 a 5208 470 6790 470 OR 454.3 1000 450 1040 448 1160 449 1190 449 1210 OR 448 1220 448 1320 449 1330 450 1460 450 1520 ^, OR 449 1530 447.2 1900 447 2170 446.2 2280 446.4 2420 OR 447. 2540 447 3070 446.3 3240 446 3350 445 3360 OR 445 3370 446 3380 447 3460 447.5 3750 447 4070 OR 447 4090 448 4150 448.5 4300 44S.S 4660 448.5 4960 OR 448.5 5130 448.5 5400 448.5 4600 444.S 4700 448.5 5704 ^ OR 432 5770 432 5930 446.5 5996 448.5 6050 448.5 6070 OR 437 6110 432 6130 437 6150 453 6190 453 6220 OR 442 6440 452 6520 450 6760 450 6900 452 6950 OR 434 7100 436 7250 458 7330 EXISTING CO18)ITIOR DANTOR CRffiC RI1.R:DRS r-� 0800298 23:39:25 PAGE 7 r� A ' RC .055 .045 .035 .1 .3 SI 1040 2S25 2.1 7.1 1040 1380 X1 20980 20 1040 1413 870 250 820 �. X3 0 0 0 1040 470 1580 453.7 GR 452 1000 458 1035 458.1 1040 458 1045 432.3 1152 GR 432.3 1312 433 1365 440 1385 450 1413 451 1420 GR 452 1432 452.7 1480 452 1711 451.5 2000 450.8 2255 r� GR 452 2405 454 2440 456 2460 458 2480 460 2525 HT 1040 2525 2.1 7.1 1040 1538 X1 20990 23 1040 1413 10 10 10 X3 0 0 0 1040 470 1457 452.1 �,. GR 452 1000 458. 1035 458.1 1040 458 1045 432.3 1152 GR 432.3 1312 435 1365 440 1385 450 1413 451 1420 GR 452 1432 452.1 1457 448.1 1473 448.1 1483 454.1 1547 GR 454.6 1557 455.5 2000 455.8 2255 455 2405 455 2440 ^ OR. 456 2460 458 2480 460 2323 ST 1048 2600 2.1 7.1 1040 1522 X1 21260 26 1048 1522 380 390 380 X3 0 0 0 1048 470 1522 454 GR 452 1000 458 1042 458.4 1048 448 1054 432.5 1148 ^ GR 432.5 1314 450 1382 455.5 1403 .460 1425 433 1455 OR 433 1480 433 1500 440 1510 454 1522 454 1533 GR 453.6 1552 448.85 1571 448.83 1581 455.6 1635 455.6 1700 GR 455.9 2335 456 2430 456 2445 456 2495 458 2563 ^ GR 460 2600 ST 1061 2570 2.1 7.1 1040 1407 X1 21635 23 1061 1408 340 400 340 X3 0 0 0 1061 470 1458 454.8 ^ GR 452 1000 458 loss 458.6 1061 458 1067 433.7 1165 GR 433.7 1340 435 1370 454 1408 454.8 1458 451.5 1471 -- GR 451.5 1573 454.6 1584 454.1 1594 454.1 1596 454 1600 GR 454.9 1630 455 1640 455.6 2100 455 2290 455 2355 .... GR 456 2422 4S8 2530 460 2570 ST 1061 2570 2.1 7.1 1040 1407 X1 21645 18 1061 1408 10 10 10 X3 0 0 0 1061 470 1526 455.8 ^ GR 452 1000 458 1055 458.6 1061 458 1067 433.7 1165 OR 433.7 1340 415 1370 454 1408 455.6 1520 454 1600 GR 452 1800 452 1800 451.8 2100 452 2290 454 2355 GR 456 2422 4S8 2S30 460 2570 RR 5 .05 1300 .06 5094 .035 5460 .055 6610 .05 104 6780 ST 5094 6780 2.1 7.1 5094 5460 - X1 22370 28 5094 5460 880 480 880 ^ X3 0 0 0 5094 470 5460 454.5 OR 460 1000 449 1300 449 1750 448 1950 448 2550 GR 450 2950 1 450 3670 449 4010 448 4070 449.5 4370 OR 450.5 4970 450.5 5094 434.04 5160 434.04 5220 434.04 5280 r-� HEISTING CONDITION DEMON CREM PII8:DB9 r 000CT99 33:39:25 PAGE 9 446 5300 452.7 5405 453 6460 453.5 6550 OR 433.3 4320 435 5345 4 43 '. 5160 (M 454.5 5460 454 5970 453.9- 6310 m 457 6610 459.5 6630 466 6700 r-- G I PAGE 9 446 5300 452.7 5405 453 6460 453.5 6550 I EXISTING CONDITION DENTON CREEK FILE:DRS OSOCT99 23:39:25 PAGE 9 ^ THIS RUN BYECUTED OSOCT98 23:39:26 a. HHC -2 WATER SURFACE PROFILES Vor im 4.6.2; May 1991 •aaaa♦ +++aaa♦ + ++++ +aaaa + +++++aa+aa+:+ ^ NOTE- ASTERISK. ( *) AT IBM OF CROSS- SECTION NUMBER INDICATES MESSAGE IN SUMUM OF HEROES LIST ^„ 100 -YEAR SUMMARY PRINTOUT ^ SECNO CMSEL Q EIMIN VCN TOPNID SETA SMST J 100040.000 447.06 48600.00 428.30 2.62 8605.13 1016.89 9782.40 * .000 447.41 12532.58 428.50 4.24 1284.15 772.92 2057.08 1.000 448.42 12532.58 429.90 2.71 2403.41 637.64 3041.05 * 2.000 450.06 12532.58 429.30 7.17 685.48 1087.27 2058.77 ^ 3.000 450.97 12532.58 429.70 6.34 1283.01 716.56 3062.83 4.000 451.20 12532.58 429.70 5.58 2183.52 420.00 3170.00 ^ 51000 451.37 12532.58 429.80 4.81 2600.43 450.00 3444.59 ,. 6.000 451.55 12532.58 429.80 3.88 3033.93 495.00 3725.00 ^.. 7.000 451.64 12532.58 430.00 3.72 1430.00 2400.00 3830.00 8.000 451.80 12776.12 430.20 '2.94 '2995.94 630.00 3715.00 ^ 9.000 451.97 13332.26 410.50 4.59 2890.00 990.00 3880.00 10.000 452.13 14054.82 430.60 4.50 2637.74 1140.00 3865.00 * 11.000 452.35 15007.57 430.80 3.11 2705.00 1180.00 3885.00 ^ • 12.000 452.42 16390.85 431.00 2.40 2503.00 1380.00 3883.00 • • 13.000 452.47 16390.85 431.40 1.78 2241.50 4244.56 6610.00 ^ 14.000 452.50 16390.85 431.70 .00 2309.62 4294.38 6695.00 19930.000 452.50 20600.00 432.00 2.82 1431.77 5208.00 6780.00 ^ $ IBTINO CONDITION DM MD CR= PILS:DB9 080CT99 33:39:25 BBCNO CBeNL Q z1bum VCH TOPNID BETA IINBT 20980.000 452.56 20600.00 432.30 3.67 482.58 1067.65 1550.24 20990.000 452.56 20600.00 432.30 3.67 430.04 1067.65 1497.70 21260.000 452.68 20600.00 432.50 3.26 425.17 1073.62 1520.86 21635.000 452.67 20600.00 433.70 4.20 316.86 1088.49 1405.34 21645.000 452.67 20600.00 433.70 4.20 316.85 1088.49 1405.34 22370.000 452.90 20600.00 432.50 4.42 . 317.18 5094.00 5411.18 n PAGE 10 EXISTING CONDITION DENTON CRSBR FILR:DHS O9OCT98 33:39:25 SUM ARY OF ERRORS AND SPECIAL NOTES WARNING SHCHO. .000 PROFILE. 1 CONVEYANCH CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SRCNO. 2.000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABIB RANGE WARNING SHCNO. 11.000 PROFILE. 1 CONVRYANCR CHARGE OvrsIDH ACCRPTABLS RANDS WARNING SHCNO. 12.000 PROFILE. 1 CONVHTANCR CHANGE OUTSIDE ACCHPTAHLB RANGE WARNING SHCNO. 13.000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RAMS PAGE I1 2 EXISTING CONDITION WITH ULTIMATE DISCHARGES DENTON CtMM FILE;DRSU 11*t4iff*f4Yffff4.4if 4f •1af 14f 144 Yiff *f ff lf♦ fif1ff11{Yfffffllf Yff4f tff 1f i14Yf *lf4if * HEC -2 MATER SURFACE PMFIL88 r a U.B. ARMY CORPS OF ENGINEER * ' ' HYDROLOGIC ENGINEERING CENT • Version 9.6.2; May 1991 • * 609 SECOND SIR=, SUITS D a • • DAVIS, CALIFORNIA 95616 -468 Y * RUN DATE 09OCT98 TIME 00:08:33 * a (916) 746 -1106 ^� +efffaaf YfYYaa4 YYi ff {iY Yf fff4iif Yfaii »Y : :f{ 14ff11re44iif14r441fe4rr 4r i44f1f.af of if x x xxxxxxx xxxxx xxxxx x x x x x x x x x x x x xxxxxxx xxxx x xxxxx xxxxx x x x x x x x x x x x x x xxxxxxx xxxxx xxxxxxx EXISTING CONDITION WITH ULTIMATE DISCHARGES DENTON CRE7. FILE:DESU 090CT98 00:08:32 a aaaa ...I........................... ^ HEC -2 MAYOR SURFACR PROFILES V�rd on 4.8.2; May 1901 •aaa4aaaaaaaaa�aaa •. •••a aga•aaaaaaaaa ^ PAGE 1 THIS RUN EXECUTED 09OCT99 00:08:32 SPLIT FLOW BEING PERFORPED ^ OF DENTON CRHBK WIER SPLIT FLOW ANALYSIS ^ TN LEFT BANK BETWEEN SECTION 19230 AND 12 DS 88CT US SECT RETURN COBFF WE 2 12 19230 -1 2.8 WIER COORDINATES STA 1 BLB 1 STA 2 RLB 2 NC 0 451.1 950 451.1 TW LEFT BANK BETWEEN SECT. 12 AND 11 DS SECT U8 SECT RETURN COBFF ^ WE 2 11 12 -1 2.8 WIER COORDINATES STA 1 SLE 1 ETA 2 BLS 2 WC 0 451.1 340 451.1 IN LEFT BANK BETWEEN SECT. 11 AND 30 US SECT US SECT RETURN COBFF NS 2 10 11 -1 2.8 WIER COORDINATES ^ STA 1 ELM 1 STA 2 ME 2 NC 0 451.1 280 451.1 TN LEFT BANK BETWEEN SECT. 10 AND 9 DS SECT US SHOT RETURN COB" NO 2 9 10 -1 2.8 WIER COORDINATES STA 1 OLE 1 STA 2 BLS 2 NO 0 451.1 280 451.1 ^ TW LEFT BANK BETWEEN SECT. 9 AND 8 DS SECT US SECT RETURN COB" • WS 2 8 9 -1 2.8 WIER COORDINATES ^ STA 1 OLE 1 STA 2 MLS 2 WC 0 450.8 220 451.1 ^ PAGE 1 THIS RUN EXECUTED 09OCT99 00:08:32 090CT98 00:08:32 EKISTINg CONDITION WITH ULTIMATE DISCWAROSS DENTON CREEK FILE:DESU r r PADS 2 TW LEFT BAjX BWWFM SECT. 8 ANC{ 2 DS SECT US SECT Rnrm Cq]" MS 2 2 9 -1 2.8 vim MOFMIMT" STA 1 ELS } STA 2 SPJI 2 NC 0 450.9 390 45 TW LEFT BANK BETWEEN S 2 AND 1 DS SECT OS SECT RBTORN CONFF WE 2 2 -1 2.8 WIEt COORDINA S $TA 1 SIR STA 2 SIB 2 WC 0 450.6 1060 45 .8 TW LEFT BAIT BETWEEN SECT. D8 SB O8 SECT RET"N 1 CO 0 WS 2 9 1 -1 .8 r� WIER COORDI" STA 1 8L$ STA 2 Elf 2 WC 0 450.1 700 450.6 r r PADS 2 090CT98 00:08:32 EXISTING CONDITION WITH ULTIMATE DISCHARGRS DENTON CREEK FILR:DRSU PAGE 3 �1. '.,,✓ T1 DR7NN CREEK RUSTING CONDITION split ETON T2 COPPRLL, TEAS T3 100 -YEAR FILE: DBSU J1 ICHRCE ING NINV IDIR STRT METRIC HVINS Q WSEL PQ 0 2 0 0 0 0 0 0 447.52 J2 NPROP IPIOT PRFVS XSRCV ASECH PH ALLDC IRW CHNIM ITRACS -1 0 -1 J3 VARIABLE CODES FOR SUMMARY PRINTOUT 38 1 43 42 26 4 53 54 JS LPRNT NUMSBC •* " ** * *REQUBSTED SECTION NUMBERS + * +•• + ++ -10 -10 QT 1 55000 NC .07 .09 .06 .1 .3 STARTED WITH THE FEMA EFFECTIVE MODEL HECRAS SECTION 997+08 X1 100040 49 4035 4215 760 760 760 X3 9900 470 r GR 451 1000 444 1030 441.5 1190 439.7 1200 439.7 1830 OR 442 1840 440.5 2500 441.2 2925 442.5 3080 443 3180 OR 443 3700 444.5 3880 444.9 4000 445.7 4035 410.9 4090 OR 430 4180 443 4215 442.9 4290 444.5 4190 442.9 5415 OR 443.4 5500 442.1 5600 444.5 5685 443 6640 442.5 6700 OR 442.5 6800 441.4 7000 440.2 7115 439.8 7500 440 7600 OR 441.6 7800 442 8200 443.6 8800 443.5 8900 446.5 9200 GR 446.5 9350 447.5 9600 447.3 9650 428.3 9680 428.5 9720 GR 446 9740 447.5 9800 447 10400 445.9 10900 447 11000 r' OR 448 11100 455 11200 457.5 11300 459.2 11420 USED FWWLINR FROM FEMA SECTION ADJUSTED FOR CONSTANT B10PR SWPE: 428.5- 429.3/ 4790. .000167 FL. 428.6 CL STATION. 20D0 NC .035 .055 .045 .1 .3 QT 1 23083 U 0 35 1960 2060 1500 430 590 OR 450.4 660 450 760 448 770 446 780 444 790 OR 442 800 440 805 440 815 442 820 443.1 890 GR 444 1080 444 1110 442.7 1125 444 1210 444.7 1250 GR 444 1315 444 1345 446 1520 447.1 1640 446 1800 OR 446 1860 446 1960 434 1980 428.5 1995 428.5 2005 ^ OR 434 2020 446 2050 448 2060 448 2140 448 2160 OR 450 2700 452 2765 454 2790 456 2800 458 2840 SWPS: 428.5- 429.3/ 4790. .000167 FL. 428.9 I I r EXISTING CONDITION WITH ULTIMATE DISCHARGES DM MN CRIME FILE:DESU 09=98 00:08132 PAGE 4 CL STATION. 3000 X1 1 22 2860 3050 1100 800 1700 r. OR 450.6 500 450 610 448 645 446 660 444 665 GR 442 675 440 680 442 695 444 715 444.2 820 GR 445.1 1260 446 1410 448 2150 448 2860 446 2960 OR 436 2970 428.9 2995 428.9 3005 436 3010 450 3045 GR 452 3050 452 3190 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY X1 2 25 1913 2057 1150 1700 2500 GR 450.8 1050 450 1090 448 1110 446 1115 444 1120 GR 442 1130 442 1145 444 1155 446 1170 448 1190 GR 449.2 1450 449.2 1480 450 1650 452 1840 452.1 1882 GR 452 1913 450 1942 446 1962 438 1974 429.3 1995 GR 429.3 2005 438 2020 450 2057 452 2122 452.3 2138 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY X1 3 27 2925 3068 300 350 380 OR 451,1 370 451.1 660 450.6 870 451 1120 451.6 1350 OR 451 1560 451 1780 450.8 1960 450 2050 448 2065 OR 446 2090 444 2100 444 2130 446 2140 448 2150 GR 450 2370 452 2810 452 2925 450 2940 438 2978 GR 429.7 2995 429.7 3005 438 3024 444 3035 450 3058 OR 452 3068 452.9 3130 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY X1 4 29 2940 3058 50 50 SO GR 451.1 420 451.1 710 450.6 920 451 1170 451.6 1400 OR 451 1620 451 1840 450.8 2010 448 2110 446 2120 OR 444 2150 444 2185 446 2190 448 2200 450 2460 OR 452 2800 452.8 2860 452 2925 450 2940 438 2978 ►, GR 429.7 2995 429.7 3005 438 3024 444 3035 450 3058 OR 450 3090 450 3100 450 3140 450 3170 CHANNEL SECTION TAKEN PROM CORPS STAFF STUDY n.. X1 5 34 2947 3080 20 SO 50 OR 451.1 450 451.1 740 450.6 950 451 1200 451.6 1430 OR 451 1640 451 1860 450.8 2040 448 2140 446 2150 OR 444 2180 444 2210 446 2220 448 2225 450 2480 .-. OR 452 2830 452.8 2893 452 2947 438 2977 429.8 2995 OR 429.8 3005 438 3025 446 3030 447 3035 448 3037 GR 449 3050 450 3065 450 3080 450 3170 444 3195 • OR 444 3210 445 3215 450 3230 451.6 3480 CHANNEL SECTION TAXEN FROM CORPS STAFF STUDY r I EXISTING CONDITION NITN ULTIMATE DISCHARGES DENTON CREEK FILE:DESU I PAGE 5 60 100 090CT90 00:08:32 450.6 990 451 1250 451.6 1470 450.8 2080 448 2180 446 2190 446 Xl 6 31 3950 3068 438 GR 451.1 495 451.1 790 432 OR 451 1690 451 1910 ^ OR 444 2220 444 2255 220 GR 452 2880 452 2950 444 OR 438 3025 450 3044 430 OR 446 3175 446 3210 ^ GR 450 3725 448 3355 450 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY 3830 X1 7 19 2900 3050 r` OR 450.8 2400 444 2440 1380 GR 450 2900 438 2983 2290 GR 450 3050 448 3090 2350 GR 448 3410 448 3575 2780 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY ^ 2860 453.1 2885 452 2918 438 X1 8 42 2885 3265 448 OR 451.1 630 451.1 920 n. OR 441 1820 451 2040 OR 444 2305 444 2125 GR 450 2420 449.9 2440 GR 448 2830 450 2840 GR 450 2933 448 2941 ^ OR 438 3024 448 3070 OR 452 3265 452 3280 GR 450 3605 450 3715 CHANNEL SECTION TAKEN FROM CORPS STAPP STUDY CL eTATIONe 3000 K1 9 34 2960 3065 OR 451.1 990 451.1 1280 ^ OR 451 2170 451 2400 OR 444 2450 442 2460 OR 450 2510 450.6 2640 GR 430.5 2995 430.5 3005 GR 449 3065 450 3130 OR 450 3535 448 3600 CHANNEL SECTION TAKEN FROM COSTS STAFF STUDY ^ X1 1031 2936 3080 GR 451.1 1140 451.1 1430 OR 451 2330 450 2335 • GR 446 2365 448 2390 OR 452.5 2850 452.1 2920 GR 430.6 2995 430.6 3005 OR 451 3265 450 3330 GR 450 3865 - CNAN7EL SECTION TAKEN PROM CORPS STAFF STUDY I PAGE 5 60 100 80 450.6 990 451 1250 451.6 1470 450.8 2080 448 2180 446 2190 446 2260 448 2270 450 2520 438 2977 429.8 2995 429.8 3005 432 3068 450 3090 450 3110 448 3280 448 3465 450 3615 220 100 160 3880 444 2470 450 2490 450.7 2800 430 2995 430 3005 438 3017 446 3280 446 3320 448 3355 450 3735 450 3830 452 2820 170 110 200 2948 438 2985 450.6 1125 451 1380 451.6 1610 450.8 2220 448 2290 446 2295 446 2335 448 2350 450 2370 450 2470 450 2780 448 2820 452 2860 453.1 2885 452 2918 438 2976 430.2 2995 430.2 3005 448 3060 448 3105 450 3145 450 3290 448 3305 448 3455 210 300 260 450.6 1480 451 1730 451.6 1960 450 2420 448 2430 446 2440 444 2470 446 2485 448 2490 451.6 2810 450 2960 438 2987 438 3013 446 3036 448 3050 451 3200 451 3280 450 3350 448 3800 450 3880 200 80 1S0 450.6 1640 451 1890 451.6 2120 448 2350 446 2355 444 2360 450 2500 450.8 2630 452 2820 452 2936 450 2948 438 2985 438 3015 4S0 3050 451 3080 450 3538 448 3585 448 3780 I 090CT99 00:06:32 EXISTING CONDITION WITH ULTIMATR DISCHARGES DENTON CPJ= FILE:DRSU PAGE 6 I X1 11 22 2953 3055 220 140 190 OR 451.1 1180 451.1 1460 450.6 1670 451 1920 448 2100 GR 447 2180 448 2460 449.9 2630 450 2690 450 2953 GR 438 2987 430.8 2995 430.8 3005 438 3017 450 3043 OR 451 3055 451 3310 450 3360 450 3450 448 3560 GR 448 3795 450 3883 CHANNEL SECTION TAKEN FROM CORPS STAFF STUDY X1 12 26 2860 3120 190 180 185 OR 451.1 1380 451.1 1660 450.6 1880 448 1940 446 1950 r . OR 446 2000 447.2 2160 446.9 2340 448 2430 449.3 2510 OR 450 2630 450 2640 449.2 2660 450 2770 451.2 2860 GR 450 2898 438 2940 431 2995 411 3005 438 3060 OR 452 3120 4S2 3240 451 3330 448 3645 448 3785 OR 450 3883 USE FEMA CROSS SECTION DATA ON THIS SECTION for the channel portion X1 13 24 5510 5960 220 225 230 OR 458 4210 450 4260 446.7 4340 448 4720 448.3 4950 ^, GR 448.8 5125 450 5290 451.4 5510 448.0 SS31.8 431.4 5627 OR 431.4 5767 447 5812 447 5820 440 5830 431.4 5845 OR 440 5855 440 5920 450 5950 453 5960 453 6000 OR 452 6155 451 6420 450 6610 456 6610 USE! FRMA CROSS SECTION DATA ON THIS SECTION for the ch%nael portim X1 14 32 2810 3160 175 110 170 GR 458 4250 450 4300 446.7 4380 447.5 4820 448 4970 GR 449.6 5300 450 5430 451.3 5510 450 5553 431.7 5617 OR 431.7 5777 448 5842.2 448.0 5860 445 5870 440 5880 ^ GR 431.7 5897 436 5973 440 5980 450 6015 453 6020 GR 452 6125 452 6210 453 6240 453 6260 452 6285 OR 451 6335 451 6500 451 6535 450 6565 450 6680 GR 450 6695 470 6693 CHANGED DISTANCE TO MATCH MUMURED TOPO MH 5 .045 5704 .035 5996 .045 6070 .035 6190 .055 NH 7350 r AT 5208 7350 2.1 7.1 5208 6190 X1 19930 53 5704 6190 440 730 500 X3 0 0 0 5208 470 6780 470 OR 454.3 1000 450 1040 449 1160 449 1190 449 1210 OR 448 1220 448 1320 449 1330 450 1460 450 1420 r OR 449 1530 447.2 1900 447 2170 446.2 3280 446.4 2420 OR 447 2540 447 3070 446.3 3240 446 3350 445 3360 GR 445 3370 446 3380 447 3460 447.5 3750 447 4070 • OR 447 4090 448 4150 448.5 4300 448.5 4660 448.5 4960 OR 448.5 5130 448.5 5400 448.5 5600 448.5 5700 448.5 5704 ..-. OR 432 5770 432 5930 448.5 5996 448.5 6050 448.5 6070 GR 417 6110 432 6130 437 6150 453 6190 453 6220 GR 452 6440 452 6520 450 6760 450 6900 452 6950 OR 454 7100 456 7250 458 7350 I EXISTING CONDITION WITH DLTIMATB DISCHARGES DENTON CFJM FILS:DRSO ^ 090CT98 00:08:32 PAGE 7 ^I NC .055 .055 .035 .1 .3 ET 1040 2525 2.1 7.1 1040 1580 X1 20980 20 1040 1413 870 250 820 n X3 0 0 0 1040 470 3580 453.7 GR 452 1000 458 1035 458.1 1040 458 1045 432.3 1152 GR 432.3 1312 435 1365 440 1185 450 1413 451 1420 GR 452 1432 452.7 1580 452 1711 451.5 2000 450.8 2255 GR 452 2405 454 2440 456 2460 458 2480 460 2525 ST 1040 2525 2.1 7.1 1040 1538 X1 30990 23 1040 1413 10 10 10 X3 0 0 0 1040 470 1457 452.1 ^ GR 452 1000 458 1035 458.1 1040 458 1045 432.3 1152 OR 432.3 1312 435 1365 440 1385 450 1413 451 1420 GR 452 1432 452.1 1457 448.1 1473 448.1 1483 454.1 1547 GR 454.6 1557 45515 2000 455.8 2255 455 2405 455 2440 GR 456 2460 458 2480 460 2525 r ET 1048 2600 2.1 7.1 1040 1522 X1 21260 26 1048 1522 380 390 380 X3 0 0 0 1048 470 1522 454 ^ OR 452 1000 458 1042 458.4 1048 458 1054 432.5 1148 OR 432.5 1314 450 1382 485.5 1403 450 1425 433 1455 GR 433 1480 435 1500 440 1510 454 1522 454 1533 GR 453.6 1552 448.85 1571 448.85 1581 455.6 1635 455.6 1700 GR 455.9 2335 456 2430 446 2445 456 2495 458 2563 ^' OR 460 2600 ET 1061 2570 2.1 7.1 1040 1407 X1 21635 23 1061 1408 340 400 340 ^ X3 0 0 0 1061 470 1458 454.8 GR 452 1000 458 1055 458.6 1061 458 1067 433.7 1165 GR 433.7 1340 435 1370 454 1408 454.8 1458 451.5 1471 OR 451.5 1573 454.6 1584 454.1 1594 454.1 1596 454 1600 GR 454.9 1630 455 1640 455.8 2100 458 2290 455 2355 ^ OR 456 2422 458 2530 460 2570 RT 1061 2570 2.1 7.1 1040 1407 X1 21645 18 1061 1408 30 10 10 ^ X3 0 0 0 1061 470 1526 455.8 OR 452 1000 458 1055 458.6 1061 458 1067 433.7 1165 OR 433.7 1340 435 1370 454 1408 455.8 1520 454 1600 GR 452 1800 452 1800 451.8 2100 452 2290 454 2355 GR 456 2422 458 2530 460 2570 r NH 5 .05 1300 .06 5094 .035 5460 .055 6610 .05 NH 6780 ET 5094 6780 2.1 7.1 5094 5460 ^ X1 22370 26 5094 5460 880 480 880 X3 0 0 0 5094 470 5460 454.5 GR 460 1000 449 1300 449 1750 448 1950 448 25¢0 OR 450 2950 450 3670 449 4010 448 4070 449.5 4370 OR 450.5 4970 450.5 5094 434.04 $160 434.04 5220 434.04 5280 ^ r I� n r� r =STING CONDITION NITR ULTIMATE DIOCEAR=8 MnN CR= PILE:DR80 090M98 00:08:32 PAGE 8 GR 432.5 5320 435 5345 443 5360 446 5380 452.7 5405 GR 454.5 5460 454 5870 452.5 6310 452 6480 453.5 6550 GR 457 6610 459.5 6630 466 6780 r I� n r� r EXISTING CONDITION WITH ULTIMATE DISCHARGRS D&fTON CREEK FILR:DRSO 090CT98 00:08:32 PAGE 9 rarrrrrrarra •rarrrrara urrar :•raara ra �+ HRC -2 WATER SURFACE PROFILES Veaeim 4.6.2; May 1991 aura +rr•raaaaraarrra ar •aarrrra «rsar THIS RUN EXECUTED 090CT98 00:08:33 NOTE- ASTERISK (•) AT LEFT OF CROSS- SECTION NW4SER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST 100 -YRAR SUMMARY PRINTOUT ^' SRCNO CMSSL Q BI27IN VIX TO]MIZD 89TA @ID9T 100040.000 447.52 55000.00 428.30 2.67 8885.09 1014.91 9900.00 or • .000 447.88 13342.59 428.50 3.85 1288.79 770.60 2059.40 f+ 7 1.000 448.69 13342.59 428.90 2.88 2406.84 632.89 3041.73 • 2.000 450.13 13342.59 429.30 7.49 699.02 1083.75 2061.07 r 3.000 451.15 13342.59 439.70 6.38 2051.09 370.00 3063.73 4.000 451.38 13342.59 429.70 5.55 3359.83 420.00 3170.00 5.000 451.55 13343.59 429.80 4.75 2785.83 450.00 3471.78 6.000 451.71 13342.59 429.80 3.83 3101.59 495.00 3725.00 r. 7.000 451.80 13342.59 430.00 3.80 1430.00 2400.00 3630.00 8.000 451.97 13683.44 430.20 2.88 3009.23 630.00 3715.00 r 9.000 452.13 14392.47 430.50 4.58 2890.00 990.00 3880.00 10.000 452.28 15303.70 430.60 4.55 2671.38 1140.00 3865.00 • 11.000 452.50 16457.61 430.80 3.22 2705.00 1180.00 3885.00 r • 12.000 452.57 18101.00 431.00 2.55 2503.00 1380.00 3883.00 • 13.000 452.63 18101.00 431.40 2267.49 4243.58 6610.00 r 14.000 452.66 18101.00 411.70 P110 2336.8E 4283.37 6695.00 19930.000 452.66 23083.00 432.00 1467. {4 5208.00 6780.00 r I EXISTING CONDITION WITH VLTIMATE DIDCNAEGEB DENTON CRUK PILS:DBSU r. n n r. n 090CI98 00:06:32 PAGE 10 SECNO CNSEL Q ELMIN VCH TOPNID ESTA =MST 20980.000 452.73 23083.00 432.30 4.07 513.05 1066.95 1580.00 20990.000 452.73 23083.00 432.30 4.07 436.13 1066.95 1503.08 21260.000 452.87 23063.00 432.50 3.60 427.56 1072.90 1521.03 21635.000 452.86 23083.00 433.70 4.65 318.02 1087.71 1405.73 21645.000 452.87 23083.00 433.70 4.65 318.01 1067.71 1408.73 22370.000 453.15 23083.00 432.50 4.87 324.55 5094.00 5418.55 r� r. n n r. n 09OCI9S OO:OS:33 EXISTING CONDITION WITH ULTIMATR DISCHARGES DENTON CREEK FILE:DESU SUMMARY OF S PRO AS AND SPECIAL NOTES WARNING SRC7O. .000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SSCNO. 3.000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE r. WARNING SEC O. 11.000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO. 13.000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SRC7O. 13.000 PROFILE. 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE I " PAGE 11 K s t t =300-7a Cross- Section 100040 464 458 452 I� c o 440 -1 w w 440 434 - - - - - -- Bridge - - -CNSEL 1 p AEncroachments Q pET 1 — Ground Section ® ® Banks , 428 4— 1000 3uu0 5000 7000 9000 Distance (Et) 11000 13000 15000 Cross- Section 0 458 453 44f +L LL C 44'. V m w 43 4< .._I, .1 -. - -Bridge -- -CNSEL 1 p pEncroachments p pET 1 i --- Ground Section ® ® Banks I 1050 1450 1860 zcou - --- Distance (Ft) Cross- Section 1 452 Y 448 EUM LL C 0 44C m m w 42+ 43E 43, 3300 - - - -- -Bridge - — -CMSEI 1 L LEncroachments L LET 1 -- Ground Section $ Q) Banks 500 900 1300 17UU MU Z5uu cauu Distance (Ft) 7=3 rn 100 -YEAR Cross- Section 2 453 s 445 C „ 441 Y m w W 437 429-4-- 1050 1250 1450 1650 1850 Distance (Ft) 2050 2250 2450 - - - - - -- Bridge — -CWSEL 1 p AEncroachments p pE7 1 --- Ground Section ® Banks , 433 n i �10o —��" +R ,�7 1""7 7 Cross- Section 3 V LL C O ri W m W 370 770 1170 1570 1970 2370 2770 Distance (Ft) - - -Bridge - - -CWSEL 1 p pEncroachments A AET 1 — &round Section ® ®Banks , 3170 a 100 -YEAR Cross- Section 4 453 ME .• 445 LL c °0 441 y J m ri W 43; 43i 820 1220 1620 2020 Distance (Ft) 2420 2820 3220 1 - - - - -- -Bridge - — -CWSEL 1 Q pEncroachments Q LET 1 ----Ground Section ® ® Banks 4294-- 420 100 -YEAR Cross- Section 5 453 i i i 9 w 449 445 c °0 44] m w w 43o 43: 429 --- 450 950 1450 1950 2450 Distance (Ft) 2950 dAW 3950 - - - - - -- Bridge - — —CNSEL 1 p pEncroachments p AET 1 -- Ground Section ® ® Banks — M =nj 100 -YEAR Cross- Section 6 453 w ME 445 C .0 44] m m LU w 433 429 495 995 1495 1995 2495 2995 3495 3995 Distance (Ft) - -- -- Bridge — -CWSEL 1 p pEncroachments p pET 1 — Ground Section ® (B Banks 43; 100 -YEAR Cross- Section 7 454 450 M LL LL c - 0 442 m Ui w 438 434 i ( j 1 - - - Bridge - — -CWSEL 1 p AEncroachments p p E7 1 -- Ground Section ® 9 Banks I 430 -�- 2400 2700 3000 3300 3600 Distance (Ft) 3900 4200 4500 100 -YEAR Cross- Section 8 454 M Fi w 43f 43 1130 1630 2130 2630 3130 3e4u Distance (ft) 4130 - - -- Bridge - - -CWSEL 1 A LEncroachments p AET 1 — Ground Section ® 4BBanks 450 44E C 0 4422 m m uj w 430-4- 630 100 -YEAR Cross- Section 9 454 w 450 446 c 442 m w w 43( 43E 43j ...A - -•- Bridge -- -CWSEL 1 p p Encroachments p p ET 1 --- ground Section 9 ® Banks I 990 1490 1990 2490 2990 3490 daau Distance (Ft) 100 -YEAR - Cross- Section 10 v c O m w W r -- ---- Bridge - — -CNSEL 1 p pEncroachments p pET 1 --- ground Section ® ®Banks 1140 1540 1940 2340 2740 3140 3540 3940 Distance (Ft) i 100 -YEAR Cross- Section 11 454 w 450 446 c o 442 CD w 43 43f 43 •:i - - - - - -- Bridge - - -CWSEL 1 p pEncroachments p pET 1 -- Ground Section ® ($Banks 1180 1580 1980 2380 [ / 8U aiau 000U Distance (Ft) 100 -YEAR Cross - Section 12 455 v_ 451 447 C 443 m w 439 435 Ilbu 21Su 2580 2980 3380 3780 4180 Distance (Ft) -- - -Bridge - -CNSEL 1 p p Encroachments p p ET 1 -- ground Section ® (DBanks 431-+- 1380 -� 100 -YEAR Cross- Section 13 461 w 456 451 c .0 446 m m LU w 441 43E 4610 5010 5410 5810 Distance (Ft) 6210 6610 7010 -- - -Bridge - — - CWSEL 1 p p Encroachments p p ET 1 -- Ground Section ® ® Banks 431-4— 4210 - 100 -YEAR Cross- Section 14 491 481 471 w c .0 46] m w 45: 44 431- -- 4250 4650 5050 b4SU btSbU OCOU Distance (Ft) VVJV • vv.. 1 - - -- -- Bridge - - -CWSEL 1 p QEncroachments Q QEl i --- - -- Ground Section ® 9 Banks "'3- 1 ,u0 -YEAR Cross - Sections (0 to 22370) 455 450 445 t. c 440 m w w 435 1 a5 60 22 70 �9 302 430 425 0 2000 4000 6000 8000 10000 12000 14000 Channel Length (Ft) -•- --- -Bridge — -CMSEL 1 Invert S! KIMIJ d � 5:1. ij W4 a , 0 Avg qmk�