FS9903-SY 990121FLOOD STUD Y
FOR
A CLOMR-F
ON A ~ 0 AND A 48 ACRE TRACT
COPPELL, TEXAS
SOUTH OF SANDY LAKE ROAD
AND WEST OF MCARTHUR BLVD
CDC FORMS
MORRISON HYDROLOGY ENGINEERING, INC.
~ozz ~,.*,.~o r~z
IlUm~ON, TgXAS ?COCo (~X?) 461-0~m (m~)
CDC Information
General
The project area consisting of two tra~ts, one 1 O-acre tract adjacent to McArthns Road and south of
Sandy Lake Road, the other tract is a 48-acre trianguiar site. Both of these tracts are shown on the
drawing in the appendix. The project consists of fill in the floodplain with compensating excavation
that n~'ults in no increase in flood levels and no decrease in flood storage.
Hydrologic and Hydraulic Information
The two tracts are affected by the flood elevations from the Ell Fork of the Trinity River. However,
these elevations are blocked from the actual flow of the river. The area is in an ineffective flow regime
and thus has no impact on flood elevations as long as storage levels are not reduced. This means that
filling the tracts has no impact on the flood elevations.
Storage Determinations
It is impartant to offset any lost storage created by filling the tract. This is accomplished by
excavating a portion of the TP&L easement on the 48-acre tract. This area is shown on the drawing in
the appendix. In order to determine the storage on the property before and after the proposed project a
computer model was created by describing cross sections through the area. The restfits of this analysis
are included in the appendix.
Results
The project site is in an area that receives floodwaters from the Elm Fork of the Trinity River, but is
isolated from the actual flow of the river. Because of this the area can be illlad without impact to the
flood elevations of the river. This report has identified storage mitigation so that there is no net
decrease in flood storage.
CDC Forms
All required forms in support of a CDC approval are included in the appendix.
SANDY I~KE
.-,k,
TRINITy RIVER
CORRIDOR ,
CDC RE(~ULATORY
AND REVIEW ZONES
ELM FORK
II II
Trinity
Z
Standard CDC Form Instructions
September 1998
TIffs application should be completed according to the guidelines set forth in the 2nd Edition
the CDC Manual.
To initiate the Corridor Development Certificate (CDC) permit process, the developer
should first contact the local government (City) for a pre-permit conference. The
CDC/Floodplaln Administrator of that local government determines whether the project
lies within or partially within the Regulatory Zone. ff the project lies completely outside
the Regulatory Zone, the CDC/F!oodplaln Administrator is not required to take any
further action beyond making this determination; no forms are required to be subnfftted
and the CDC process ends at this point.
ff the project lies within or partially within the Regulatory Zone and there is a possibility that a
CDC permit might be granted, the CDC Process must be followed. The Applicant should fill out
Parts I and 2 of the Standard CDC Form and submit it to the CDC Floodplain Administrator
unless the Applicant is seeking an exemption, in which case the Applicant must only complete
Part 1. fithe CDC/Floodplaln Administrator decides at any time to deny a CDC permit, the CDC
Process can be terminated.
h~formation provided by the Applicant herein will be used by the City/County to evaluate tiffs
Trinity River Corridor Development Certificate (CDC). This application is public information
and will be used by other relevant floodplain regulatory authorities, i.e., U.S. Army Corps of
Engineers (USACE), Federal Emergency Management Agency (FEMA), and the Texas Natural
Resource Conservation Cormnission (TNRCC). These and other regulatory 0gencies may requi~e
additional information.
If an Intent to Process (1TP) is granted, the Standard Form shall be distributed to the following
agencies:
· USACE;
· FEMA;
· TNRCC;
· the North Central Texas Council of Governments (NCTCOG);
· the cities of Arlington, Carrollton, Coppell, Dallas, Farmers Branch, Fort Worth, Grand
Prairie, Irving, and Lewisville;
· the counties of Dallas, Denton and Tarrant;
· the Tarrant Regional Water District; and the Trinity River Authority.
Appendix F lists addresses for the entities to which the ffP ~nust be sent.
If additional space is needed to complete this application, please attach a separate sheet labeled
appropriately,
Hydrologic and Hydraulic Data
Design discharges for the 100-year and Standard Project Flood storm events shall be based on
urbanization consistent with a "Future Conditions with CDC" Scenario or on supplemental data
provided by the USACE, whichever discharge is larger. (See Table 1 in Appendix B.) The
Applicant should identify these design discharges, including source and date, in the "100 Year
Flood Event" and "SPF Flood Event" tables in Pan 2 #3.
Hydraulic calculations shall be continued for a distance great enough upstream and downstream
of the project to verify that water surface elevations are not raised by the proposed hydraulic
modifications (spaces are provided in the "100 Year Flood Event" and "SPF Flood Event" tables
in Part 2 #3 to list water surface elevations for a number of points upstream and downstream).
Elevation data should be computed considering full cross-section widths across the river or
creek.
Storage data for pre-project and with-project conditions (Part 2 #3) shall be developed within tile
project borders alone and considering full cross-section widths across the river or creek. Storage
change is to be considered "on-site" (i.e., within upstremn and downstream limits of the
discharge reach.) Compensating valley storage for a proposed activity can also be provided at
another site if the USAGE recognizes and approves the "off-site" valley storage. In addition, if
any valley storage is lost elsewhere due to the project, storage change shall be addressed on a
cross-section width basis, with change based on the original "on-site" storage.
Standard CDC Form Instructions
September 1998
This application should be completed according to the guidelines set forth in the 2"d Edition
the CDC Manual.
To initiate the Corridor Development Certificate (CDC) permit process, the developer
should first contact the local government (City) for a pre-permit conference. The
CDCanloodplaln Administrator of that local government determines whether the project
lies within or partially within the Regulatory Zone. If the project lies completely outside
the Regulatory Zone, the CDC/Floodplaln Administrator is not required to take any
further action beyond making this determination; no forms are required to be submitted
and the CDC process ends at this point.
ff the project lies within or partially within the Regulatory Zone and there is a possibility that a
CDC permit might be granted, the CDC Process must be followed. The Applicant should fill out
Parts I and 2 of the Standard CDC Form and submit it to the CDC Floodplain Administrator
unless the Applicant is seeking an exemption, in which case the Applicant must only complete
Part 1. ff the CDC/Floodplaln Administrator decides at any time to deny a CDC permit, the CDC
Process can be terminated.
Information provided by the Applicant herein will be used by the City/County to evaluate this
Trinity River Corridor Development Certificate (CDC). This application is public information
and will be used by other relevant floodplain regulatory authorities, i.e., U.S. Army Corps of
Engineers (USACE), Federal Emergency Management Agency (FEMA), and the Texas Natural
Resource Conservation Commission (TNRCC). These and other regulatory 0gencies may require
additional information.
If an Intent to Process (ITP) is granted, the Standard Form shall be distributed to the following
agencies:
· USACE;
· FEMA;
· TNRCC;
· the North Central Texas Council of Governments (NCTCOG);
· the cities of Arlington, Carrollton, Coppell, Dallas, Farmers Branch, Fort Worth, Grand
Prairie, Irving, and Lewisville;
· the counties of Dallas, Denton and Tarrant;
· the Tarrant Regional Water District; and the Trinity River Authority.
Appendix F lists addresses for the entities to which the ITP must be sent.
If additional space is needed to complete this application, please attach a separate sheet labeled
appropriately.
Hydrologic and HydrauLic Data
Design discharges for the 100-year and Standard Project Flood storm events shall be based on
urbanization consistent with a "Future Conditions with CDC" Scenario or on supplemental data
provided by the USACE, whichever discharge is larger. (See Table I in Appendix B.) The
Applicant should identify these design discharges, including source and date, in the "I 00 Year
Flood Event" and "SPF Flood Event" tables in Part 2 #3.
Hydraulic calculations shall be continued for a distance great enough upstream and downstream
of the project to verify that water surface elevations are not raised by the proposed hydraulic
modifications (spaces are provided in the "100 Year Flood Event" and "SPF Flood Event" tables
in Part 2 #3 to list water surface elevations for a number of points upstream and downstreant).
Elevation data should be computed considering full cross-section widths across the river or
creek.
Storage data for pre-project and with-project conditions (Part 2 #3) shall be developed within the
project borders alone and considering full cross-section widths across the river or creek. Storage
change is to be considered "on-site" (i.e., within upstream and downstream limits of the
discharge reach.) Compensating valley storage for a proposed activity can also be provided at
another site if the USACE recognizes and approves the "off-site" valley storage. In addition, if
any valley storage is lost elsewhere due to the project, storage change shall be addressed on a full
cross-section width basis, with change based on the original "on-site" storage.
L
CDC Tracking Code:
C!ro be supplied by CDCdFloodplain Administrator)
STANDARD CDC FORM - PART 1
(To be filled out by Applicant or Applicant's Representative and submitted to the appropriate local CDC/Floodplain
Administrator. If an ITP is granted, the CDC/Floodplain Administrator will send Pan I along with Pan 2 (unless an
exemption is granted), the ITP form, and the Preliminary Technical Review (if requested) to the parties designated
on the ITP form.)
Appllcant'a Representative.
concerning data provided by the Applicant.
Name: RONALD W. MORRISON~
Relationship to Applicant: E N G I N E E R
Address: 210 ARNOLD
ARLINGTON,
Telephone/fax/c-mail: ( 8 ]- 7 )
Identify person knowledgeable of end authorized to respond to questions
P.E., C.F.M.
~VENUE
TEXAS 76010
461-0321/(817) 2]q-1338/RONMOR7777@AOL.COM
CDCAppllcant: [OU [IEBOWITZ City/County: COPPELL, DALLAS CQ.
Property Owner: 10 AC TRACT SANDY/MAC ~,~mg~t~eer: Rn~m~sLD W. r~ORRISON,
Project Name: Lt~j ~ TRACT ST. JUDE, ~o~ctSize(to~lecr~):_~ROX. 58 AC
SANDY AKE MCARTH R DEVE~ OPMENT '
Upper X.~ rover F~ibili~ ~mdy ~.pping G~d m: ' '
MAPSCO and ~cafion Reference: P~ E 1 B-W
P.E.
3. Location. Provide general description of location, including street address, nearest cross-slx,~:et, end identified
impacted water bodies:
SEE ATTACHED DRAWING
4. Site plan. (a) Please attach a location map (81/2 x l l). Plansattached: DYes ~No (SEE FOLLOWING
(b) Please attach a general sita plan (8 l/2x II)+ Plansattached: Hyes ~No FL00DPLA I N
5. Proposed Activity: (check appropriate categories) D R A W I N G )
I'1 dredge/channel modification [] swaie construction rl fill [] levee [] other
(anach explanation)
6. Proposed Use: (check appropriate categories)
[] private single dwelling(s) g3 private multi-dwelling(s)
[] industrial [] other (attach explanation.)
[] public [] commercial
7. Applicant requests an exemption or variance to common perndt criteria. [] Yes [] No
[ Please attach supporting material ]
Application is hereby nmde for a Corridor Development Certificate (CDC). I certify that I am familiar with
the information contained in this application, and that to the best of my knowledge and belief, this
n ru d
· 1/lqqq
Signature of CDC Applicant or Applicant's Representative /Typed Name I Title Date
GG alll1IIDffiIllb rnm
D
r-
443.9
Frs
Frs. 9209
FLOODPLAIN FILL
PROJECT
PROPOSED FLOODPLAIN
FLOODPLAIN
Sca.le: 11-50 I
~
"I I r- r" r'\
CDC Tracking Code:
(To be supplied by CDC/FIoodplain Administrator)
STANDARD CDC FORM - PART 2
Detailed llydrologic/Hydraulic Information
(To be filled out by Applicant or Applicant's Representative and submitted to the appropriate local
CDC/Floodplain Administrator. The CDC./Floodplaln Administrator will send will send Part 2 along with
Part I, the rl'P form, and the Preliminary Teclmleal Review (if requested) to the parties designated on the
ITP form.)
General. CDC Applicants are requested to provide the following detailed hydralogic and hydraulic
information for all proposed projects within the CDC Regulatory Zone of the Trinity River Corridor. This
form and the data provided by the CDC Applicant heroin are required to supplement Part I of the
Application Form. However, in certain cases the City/County may release the CDC Applicant from
completing all or portions of this form if the proposed project satisfies specific provisions. The CDC
Applicant b encouraged to schedule a pre-appllcaflon meeting with the City/County ff there are any
questions regarding the requirements of the CIty/County. This application is considered public
information and will be distributed to affected Federal, State, and local governmental agencies. Please be
as complete and concise as possible. Incomplete Information can ennse delays in the CDC process.
Site Plan. (FLOODPLAIN RECLAMATION ONLY)
Please attach a detailed site plan . Plansattached: IXlYes DNo (SEE TEXT) (NO PLANS)
'me scale of project plans shall provide adequate detail of the whole project as well as individual features of the
project. The plans should show the location of the FEMA Regulatory Floodway and the layout of cross-sections
used in the hydraulic model. PropoSed changes to the Floodway should be clearly shown.
Operation and Maintenance. The operation and maintenance of flood water conveyance systems,
conveyance alterations, storm water control structures, equ pment and appurtenances, end water quality
control measures will become the obligation of: (check one)
FI City [] County [] Owner
[~ other (specify): Tt~ RF ~C~CIRDINATFD WITH CTTY
The annualized cost. including replacement costs, of operating and maintaining post-project storm
water control systems, conveyance alterations, and water quality control measures is estimated to be in
cutTent year dollars: ($/yr)
Legal provision for community monitoring and backup maintenance attached? [] 'Yes [] No
(Required if maintenance is to be accomplished by an agent other than the permitting entity)
STANDARD CDC FORM PART 2 - CONTINUED
Hydrologlc/Hydraulic Information. Please provide the following data to characterize the hydrologic and
hydraulic impacts of the proposed project:
--- 100 YEAR FLOOD EVENT ---
Hydrologic / Hydraulic Impact
Pre-ProJect Post-Project Change
DIscharges: Upstream Boundary: ~ 5 0 0 0 cfs. N/A N/A
Downstream Boundary: 5 5 0 0 0 cfs. N/A N/A
Source of discharge data: CITY STORr'4W,ATER JellASTER )1 AN
Date of discharge data: J A N U A ,~ Y19
Channel Velocities: Up~mgeSo~S~y: /1.7 1 fps. /1.7 1 fps.
C/S 92300 Downstream Boundary: 2. ].3 fps. 2. ]3 fps.
Water Surface Upstream Boundary (UB): ft. ft.
Elevation(NGVD): C/S 93620 /1/15.60 4/15.60
Mid-project: 4/4 ~ . 21 ft. 4 4 ~ . ? 1 fl'
C/s 92300 Downstream Boundary (DB): 444.82 ~- tl/14 · 82 ft.
C/S 93750 tl0ft. upstreamofUB: 445.78 ft. 445.78n.
c/s 93760 ltl0ft-uPstream°fun: 4/15.89 ft. /145.84n.
c/s 93810 !90ft. uPstream°rUB: tt46.02 ft. 446.07ft.
c/s 97570 3950'upstream°fUB: 446.78 n. 446.78n.
C/S 90880 1-2--10'd°wnslream°fDB: 444.28 n. 444.28n.
C/S 90000 24}--90'd°wnsueam°fDB: 443.tt9 ft. 4q3.qgft.
C/S 89050 2--1~(}'d°wnstream°fDB: ~14~.i37 ~' /ltl~ R7ft'
C/S 88150 .~{~-q0'd°wnsueam°fDB: 4/tl.80 ft.
Project Lunds in ! 0 A C T R A C T 3.37 ac. ac.
Floodplain: 4 a A C T R n c T ] 9,5 0
Valley Storage on 46 · 55
Project Laads: ~48 · 57 ac-fL ac-ft.
n
0 fps.
ft.
0
El ft.
0 ft.
0 ft.
f} ti-
ff ~.
fl ~-
0
0 ft.
0 ft.
~ ~.
13.45
7.88 ac-ft.
20.58
INCREASE
The CDC application shall include plots and electronic data files from the current hydrauli6 model (HEC-RAS.
obtained from the USACE) of cross-sections for pre-project and with-project conditions. Water surface profiles for
IOO-year flood and Standard Project flood for pre-project and with-project conditions should also be included. The
number and location of sections should adequately describe and support documented computations.
Cross section plots attached? D Yes ~ No
Cross section electronic data files included? [3 Yes ~ No
Water surface profiles attached? rl yes ~ No
STANDARD CDC FORM PART 2 - CONTINUED
--- SPF FLOOD EVENT ---
llydrologlc / Hydraulic Impact Pre-ProJect
DIscharges: Upstream Boundary: ] 0 0 0 0 0 cfS.
Downstream Boundary: i 0 0 0 0 0 cfs.
Source ofdischarge data: CITY ,~TORMV/ATER
Date ofdischarge data:JANUARY 199i
C,anne, V.,oc,ties:6 s e 3 o .0d :3.2
c/s 92300 Downstream Boundary: 2.13 fps.
Water Surface Upstream Boundary (UB): ft.
Elevation(NGYl)): C/S 93620 450.q9
Mid-project: /4'50 . 29 fi-
C/S q75~(] Downstream Boundary (DB): /450.09 ft.
c/s 93730 110ft'upstream°fUB: /450.5/4 ft
c/s 93760 !t!Oft'upstream°fUB: q50.55 ft.
c/s 93810 I°~OR'upstrearn°fUB: /450.59 ft.
c/s 97570 3950'upstream°fUB: q5O.gq n.
c/s 90880 1210'd°wnstream°fvn: 4q9.81 ft.
C/S 90000 ~90O,flJ'd°wnstream°fDB: 449.50 ft.
C/S 89050 2-Lt40'd°wnitream°fDB: q49.34 ft.
C/S 88150 z'rg-q~J'd°Wnstream°fDB: 4/48.71 .ft.
Project Lands in ] 0 IX C T R A C T 8 ac.
Floodpin/n: t4 8 lX C T R A C T tj R
Valley Storage on
Project Lands: 2 2 1 . 2 1ac'~'
Post-Project Change
N/A N/A
N/A N/A
MASTER P~ AN
3.2 3 fps. 0 fps.
2.13 fps. 0 , fps.
/450.0,9
450.29 fi. 0
q50.09 ~' 0 ft.
a. 0 fi-
ft. 0 ft.
ft. 0 fi.
~. 0
fi' 0 n.
fi. O ft.
ft. 0 ft,
8 ac. 8 ac.
a8
246.99 ac-ft.25.78 ac-fi.
11.65
~NCREASE
The CDC application shall include plots and electronic data files from the current hydraulic model (HEC-RAS,
obtained from the USACE) of cross-sections for pre-project and with-project conditions. Water surface profiles for
10t-year flood and Standard Project Flood for pre-projeci and with-project conditions should also be included. The
number and location of sections should adequately describe and support documented computations.
Cross section plots attached? D Yes g] No
Cross section electronic dam files included? I'l yes g] No
Water surface profiles attached? D Yes ~] No
STANDARD CDC FORM PART 2 - CONTINUED
4. Flood Storage/Hydraulic Mitigation. Please identify all flood storage and other hydrologic/hydraulic
mitigation areas on the site plan, and describe them in the space below:
STORAGE MITIGATION CONSISTS OF EXCAVATION IN THE TP ~ I_ EASEMENT AS
SHOWN ATTACHED. THIS STORAGE AREA MAINTAINS A BOTTOM ELEVATION OF
L[40' WITH 4:]. SIDE SLOPES TO FILL AREA AND NATURAL GRADE. PONDS COULD
BE CONSTRUCTED WITHIN THE AREA, BUT THEY WOULD NOT CONTRIBUTE TO
STORAGE MITIGATION.
5. Habitnt/Wetland MItigation. If a Section 404 permit is required. please identify all habitat and/or
land resource area used for environmental mitigation purposes on ~e site plan, and describe ~em in
the space below:
THE TP&L EASEMErIT WILl_ BECOME A WETLAND AREA WHEN THE PROJECT IS
COMPLETE. THERE ARE NO OTHER WETLAND AREAS ON SITE.
IS BEING COORDINATED "/ITH THE CORPS OF ,ENGINEERS.
THIS MODIFICATION
Land Cover Information. Please provide the following data. in total acres, to characterize the
impacts on current land cover which will result from construction of the proposed project:
--- LAND COVER INFORMATION ---
Land Use/Land Cover Clmal~cnfion ** Pre-ProJect
(Total Acres)
100 urban/hugh up 0
200 agricultural/pasture 0
300 rangeland/shrub & brush 5 8 A C
400 forest/woodlands 0
500 water (identify on site plan) 0
600 wetland (identify on site plan) O
700 barren land/mines &quarries [1
Post-ProJect
(Total Acre)
44.55
'P&L EASE=t3.45 ~C
** Note: Listed land cover types are "Level I" categories (100 through 700) defined in accordance with
the land tae and land cover classification of the U.S. Geological Survey. U.S. Department of the Interior.
This data may be required by the U.S. Army Corps of Engineers and other regulatoty agencies.
Dte
CDC Tracktug Code:
CDC EXTENSION REQUEST
(To be submitted by CDC Applicant to local CDC/FIoodplain Administxator, with a copy to NCTCOG)
General. This application should be completed according to the guidelines set forth in the Corridor Development
CartOmcats Manual, 2"dEditlon. Information provided by the Applicant herein will be used by the City/County to
evaluate the extension of the Trinity River CDC permit. This application is public information and will be used by
other relevant flood plain regulatory authorities (e.g,, USACE, FEMA and TNRCC). If granted, the permit
extension applies to the Corridor Development Certificate only. If additional space is needed to complete this
application, please attach a separate sheet labeled appropriately.
Applicant's Representative. Identify person knowledgeable of and authorized to respond to questious concerning
data provided by the Applicant.
Relationship to Applicant:
Address:
Telephone/fax/e-mail:
Explanation for Extension Request
Status of Other Related Perndts / Projects
Applicant's Signature / Typed Name / Title
Date
CDC Administrator Acttoo/Findings
(To be filled out by CDC Administrator)
Extension Request Granted? Yes []
Period of Extension: FROM:
No []
TO:
Signature of CDC Administrator / Typed Name / Title
Date
CDC Tracking Code:
INTENT TO PROCESS FORM
(To be filled out by CDC/Floodplain Administrator and submitted along with Part I, Part 2, and the Preli:ninmy
Technical Review (if requested) to USACE. local signatories, NCTCOO. TNRCC & FEMA, whose addresses ere
listed in Appendix F of the CDC Manuel.)
If n project fulls parfinlly or completely in the Regulntory Zone, titis form should be completed.
City/County of:
CDC../Floodplain Administrator:
Telephone No:
2. Par~ or all of project is within the CDC REGULATORY ZONE. Yes [] No []
If the answer to this question is No, NO CDC PERMIT is required and this [orm does not have to be complt
Exempt Category: (check if applicable - additional docmnentation may be required)
maintenance/repair of flood control structures
[] outfall/intake structure permitted under NPDES program
[] dischar~e~fmateria~f~rba~k~rbeddin~f~ruti~ity~ineswithn~changet~b~tt~mc~nt~u~s
[] bank stabilization activities
[] other
State/Federal Review Hkely to be required:
n. FEMA Conditional Letter 9f Map Revision (CLOMR) [] Yes [] No
b. USACE Section 404 Permit & TNRCC State Certification [] Yes [] No
Pursuant to Clean Water Act Section 401 (required for projects
involving dredging or filling in Waters of the US)
c. TNRCC Plan of Reclamation (for levee improvement districts only) [] Yes []
5. AdndnistraUve Comments:
6. ITP sent to: USACE? Local Signatories? NCTCOG? __ FEMA?
TNRCC?
By my authority under the City/County, I hereby issue and record the City/County's finding. 'l'b$n r~oUee of
Intent to Process In no way implies that final project approval will be granted by the City/County.
Signature of CDC/Floodplain Administrator / Typed Name/Title
Date
CDC Tracking Code:
FINAL CDC ACTION/FINDINGS FORM
(To be filled out by CDC/Floodplain Administrator and submitted to NCTCOG)
1. CDC Action: (check one)
[] permit granted Date
[] permit granted w/conditions (explain in #8) Date
[] permit denied
City Action if Variance was requested: F1 granted (explain in #8) [] denied D N/A
Listing of Conunentators (written comments on this application were received from)~,
4. USACE Preliminary Technical Review completed? I'1 Yes (attached)
5. Operation and Maintenance Agreement: [] executed (attach copy)
Date/Initials:
[] No (explain)
[] not applicabl,,· (explain)
The CDC will cease to be in effect:
13 five years after the date of issuance if no development activities are undertaken
[] DATE: (if different from S years)
7. Final Findings of Fact: (summary of City or County's findings/comments/conditions)
Project Changes: Is the project substantially the san:e as the project described in Parts I & 2 of the Standard
CDC Form7 [] Yes [] No
If no, please explain:
By my authority under tile City/County, I hereby issue the City/County's findings and final action.
Signature of CDC/Floodplain Administrator / Typed Name /Title
Date
Section
Storage Table
48 Acre Tract
Existing Proposed
100 yr Vol, AF Vol, AF
SPF
1 445.6 0 0
1 450.49 0 0
2 445.45 4.52 5.54
2 450,4 32.6 34.69
3 445.4 7,96 11.89
3 450,35 58.02 69,03
4 445,25 12.44 18,44
4 450.3 83.73 102.21
5 445.21 16.7 23.77
5 450.25 104.26 127.44
6 445.1 20,34 28,22
6 450,2 120.77 147,16
7 444,9 27,19 36.86
7 450,1 151.41 182.74
8 444,82 34,42 46.55
8 450,09 181.89 216,71
10 Acre Tract
Existing Proposed
Section100 yr Vol, AF Vol, AF
SPF
1 445.25 0 0
I 450.3 0 0
2 445.21 0.92 0
2 450.25 6.76 5.08
3 445.1 2,52 0
3 450.2 25.22 19.78
4 445 4.25 0
4 450.1 39.32 30.28
Total Storage
48 Acre Tract
Storage
100 yr
SPF
10 Acre Tract
100 yr
SPF
100 yr
SPF
12.13 AF
34.82 AF
-4.25 AF
-9.04 AF
7.88 AF
25,78 AF
I
(~I O:?
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CClI
-
-
c:a
- ~I
~~ -
(ij~
SCALE
1"-400'
Existing 100 year and spf volume
48 ACRE TRACT
HEC-2 Water Surface Profiles
X X XXXXXXX X.UJ/
X X X X X
X X X X
XX..v. XXXX XXXX X
X X X X
X X X X X
X X XXXXX.X~ XXXXX
HEC-2 Water Surface Profiles
versic~ 4.6.2; May 1991
T2
T3
0 2 0 0
J2 NPROF IpLOT PRFVS XSECV
38 I 4
QT 2 5000 5000
NC .05 .05 .05
X5 2 445.6 450.49
X1 3 13 0
X5 2 445.4 450.35
GR 491 0 443.1
GR 446 380 448
~E 446 1200 444
1/9/99 Existing Ccmd.
FILE: VOLUME
9TRT ~TRIC HVINS
0 0 0
0 443.4 200 444
540 444 580 446
1420 446 1950 451
330 443.6 400
620 447.2 730
1550
1410 210 210 210
0 444 90 446 95 448 100
190 450 170 448 180 446 190
1270 220 220 220
0 443.1 60 443.2
950 449,3 780 448
1270 451 1270
220 444 300
950 447.6 1110
Existing 100 year and spf volume
X1 4 12 0 1130 230 230 230
X5 2 445.25 450.3
GR 451 0 442 0 442 30 442 260 444 300
GR 446 360 448 500 449.5 650 448 840 446 1070
OR 444 1130 451 1130
X1 5 9 0 1000 190 190 190
X1 8 9 0 505 370 370 370
X5 2 444.82 450.09
GI 451 0 442 0 442 290 444
GR 446.7 380 446 480 445 505 421
305
505
320
100 YP, AR D~SIGN CiTY OF
1.000 445.60 802.01 .00 1227,61
1.000 450.49 1550.00 .00 8368.49
2.000 445.45 316.13 4.52 647.44
2.000 4~0.40 1374.47 32.60 5158.63
3.000 445.40 405.00 7.96 715,50
3,000 450.38 1270,00 58.02 4908.51
4.000 445.25 375.00 12.44 981.88
4.008 450.30 1130.00 83.73 4833.99
5,000 445,21 330.25 16,70 971.30
5.000 450.25 1000.00 104.26 4580.00
6.000 445.10 333.00 20.34 101g.15
6.000 450.20 920.00 120.77 4407.25
7.000 444.90 309.00 37.19 854.05
7.000 480.10 730.00 151.41 3835.50
21JAN99 15:39:26
3,000 pROFILE,
3.000 PROFILE=
6.000 PROFIK~B~
6.000 PROFIE~
PAGE
Proposed 100 year and spf volume
48 ACRE TRACT
HEC-2 Water Surface Profiles
T3
J1 ICHECK INQ NINV IDIR
0 2 0 0
38 i 4
Proposed 100 year and spf volume
1/9/99 PROPOSED
PAGE i
1~0 440 133
1550
224 446.45 250
225 446.25 250
Xl 5 7 0 1000
X5 2 445.21 450.25
GR 451 0 442 0
GR 446.2 1000 451 1000
X1 6 7 0 920
X5 2 445.1 450.2
QR 451 0 440.4 0
190 190 190
440 8 440 225
160 160 160
440 2 440 226
320 320 320
440 8 440 226
370 370 370
440 8 440 227
446.2
446.1
445.9
445.82
PAGE
250
250
250
250
J2
SPF DEBI(~ CITY OF COPPBLL
ICHECK INQ NINV IDIR STRT ~ISTRIC ~IVINS Q WSEL
0 3 0 0 0 0 0 0 4~0.49
21JAN99 15:42
PAGB
PROPOS~ 100 year and spf volume
PAGB 5
Existing 100 year and spf volume 10 ac site
10 ACRE TRACT
HEC-2 Water surface profiles
* Versio~ 4.6.2~ May 1991
,
(916) 756-1104
Existing 100 year and spf volume 10 ac site
Versic~ 4.6.2; May 1991
T2
T3
38 1 4
-10 -10
QT 2 1000 1000
NC .05 .05 .05
X5 2 445.25 450.3
GR 451 0 442
GR 452 695
1/9199
PAGB
0 0
465 448
450 670
0 446
X1 2 7 0 635 100 100 100
X5 2 445,21 450.25
GR 451 0 442 0 444 50 446 260 448 540
J2
21JAN99 15:46:43
1/9/99
21JAN99 15:46:43
PAGB
PAGE
Proposed 100 year and spf volume 10 ac site
....................................... 10 ACRE TRACT
Version 4.6.2~ May 1991
X X EKXX~'.X XXrar. X
x X x X X
X X X X
XXXXXXX XX.XX X
X X X x
x X X X X
X X XXXXXXX ~
PROPOSED 100 year and spf volume 10 AC SITE
PAGE
J1 ICHECK INQ NINV IDIR
o 2 o o
J2 NPROF IPLOT PRFV8 XSECV
38 i 4
QT 2 I 1000
NC .05 .05 .05
X5 2 445.25 450.3
GR 451 0 446.25
GR 450 670 452
1/9/99 PROPOSED COED.
FILE: VO110p
STRT N~TRIC HVINS
0 0 0
PAGE
210AN99 15:50:31
PAGE
PAGB