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Villages C P3&4-CS 910529 TABLE E-10 ELM FORK OF THE TRINITY RIVER SUMMARY OF HYDRAULIC DATA (continued) Approx. Ounulafive Flooded O CWSEL Velocity Storage Area Section (cfs) irt) ~ _f!~s~ (Acre-l~) (Acres) 93670.000 12600.00 439.60 8.69 2289.?9 439.35 936?0.000 55000.00 445.70 3.59 9118.96 1405.6S 936?0.000 100000.00 450.51 ZS9 17015.79 93?30.000 12600.00 440.84 3.91 2293.26 440.38 93?30.000 $5000.00 445.?8 3.90 9150.32 1414.91 93?30.000 100000.00 450.54 1.72 17098.47 1489.18 93?60.000 12600.00 440.89 3.88 2295.61 440.?0 93760.000 55000.00 445.89 3.72 9163.19 1419.36 93?60.000 100000.00 450.55 1.72 17137.78 149S.51 93810.000 12600.00 441.06 3.1'7 2301.2'/ 442.70 93810.000 $5000.00 446.02 3.60 9194.24 1428.26 93810.000 100000.00 450.59 2.59 17215.40 1506.49 975?0.000 12600.00 442.22 1.98 2902.43 689.13 97'3?0.000 '35000.00 446.78 2.29 113'/4.26 1856.46 975?0.000 100000.00 4'30.94 2.10 21324.5S 1963.25 984'30.000 12600.00 442.46 3.0'3 3126.93 800.?8 98450.000 '3'3000.00 446.97 Z?'3 12277.23 2026.89 984'30.000 100000.00 451.05 2.33 22936.60 2136.S1 D 99280.0(~ 12600.00 442.91 2.?8 3303.98 892.2? 99280.0~ 55000.00 44?.23 2.80 13090.46 2189.'33 99280.000 100000.00 451.19 2.48 24411.00 2301.58 100040.000 12600.00 443.31 2.39 3497.98 989.S1 100040.000 55000.00 447.'32 2.67 13881.?? 234S.25 100040.000 100000.00 451.35 2.46 25812.47 2458.61 Note: Information shown on Table E-10 is for the 2-year, 100-year and the Standard Project Flood (SPF), respectively, for a fully developed watershed. E-26 TABLE E-11 DENTON CRE~K SUMMARY OF HYDRAULIC DATA Approx. Cumulative Cumulative Flooded Q CWSEL Velocity Storage Area Section (cfs} L0J (_fps} {Acre-Ft) (Acres) 18440.000 7432.00 450.19 2.46 .00 .00 18440.000 23083.00 452.38 2.86 .00 .00 19330.000 7432.00 450.27 .98 118.73 38.79 19330.000 23083.00 452.51 2.01 217.56 49.25 19930.000 7432.00 450.27 1.30 254.80 70.92 19930.000 23083.00 452.51 3.06 433.07 88.36 21560.000 7432.00 450.31 1.71 438.55 97.47 21560.000 23083.00 452.67 4.51 686.81 126.72 22370.000 7432.00 450.35 1.92 514.02 103.08 22370.000 23083.00 452.90 4.94 778.18 136.07 23800.000 7432.00 450.43 1.60 610.39 111.98 23800.000 23083.00 453.38 2.69 907.98 153.99 24400.000 7870.00 450.53 1.34 656.14 116.94 24400.000 22468.00 453.88 2.67 975.69 163.79 A 24700.000 7870.00 450.55 1.82 746.53 126.33 24700.000 22468.00 453.94 4.06 1106.33 179.64 25530.000 7870.00 450.62 3.35 791.71 130.78 25530.000 22468.00 454.06 7.18 1170.44 186.47 25770.000 7870.00 450.74 2.72 806.16 132.06 25770.000 22468.00 454.55 5.76 1189.86 188.05 B 26830.000 7870.00 450.96 2.25 900.29 145.04 26830.000 22468.00 455.37 3.15 1350.51 205.39 28080.000 7870.00 451.07 3.52 979.97 157.31 28080.000 22468.00 455.52 5.67 1518.99 231.35 28870.000 7870.00 451.32 3.52 1011.27 160.64 28870.000 22468.00 456.21 3.74 1655.75 262.44 C 29610.000 7870.00 451.62 3.18 1054.35 169.80 29610.000 22468.00 456.46 4.12 1808.21 290.19 30570.000 7870.00 451.92 3.78 1115.24 184.85 30570.000 22468.00 456.81 4.89 1952.73 309.44 I ~ ,r-~, ~' 480 48o '''""" ''"'''" '"''''" ''''""' "'''"" '"~'''" "",,,,, ,,,r ,, '''''"" '''"'"' ''"'"" '"''"'' LEGEND: Q(SPF)= 9:5100 cfs Q(SPF)=giS00 cf$ Q(SPF}=IO0000 '~-- Q(100)= 49800 cfs _1_ Q(100)=49500 cfs _ I -I- - o(,oo)= ssooo =~" ' -' T - Q( 2 ) = 14200 cfs, Q( 2)= 11900 uts I Q( 2)= 12600 ;rs BRIDGE 470 - 470 CULVERT _- 2,100,& S.P.F. WSEL FOR - IT E ~ EXISTING CHANNEL & : ~ IT m" FLOOD PLAIN CONDITIONS I~>~ 460 --- n":~ ~ I~ ~ ¢~ -'-- - c: '~ ~' 460 [] C9 C o--~ Z APPROXIMI~E TOP OF J!~ --o-~~ Z CONTROL +~i ~ ._~ - iRViNG fLO 3D ~_ r~ III 450 ~ Fm0D ( S~ E) -- 2 Z ' ~~ ~~ I ~ Z H 100 YEAR WSEL /~ ~ H ~ 440 ,~ ~~ H 2 YEAR W~L ~ - H 430 _ r () 430 ~ ~ ~ c ~ NOTES ' ~ ~ O ~ ~ ~ ~ e ~ c~~ ~ · PROFILES BASED ON FULW ' 0 ~ ~ DEVELOPED LAND USE - - ~ ~ CONDITION THROUGHOUT ¥- ' ~ c ~ WATERSHED. 420 c '~ " 420 oe ~ ~ ~ ~ ~ ~ · HYDRAULIC MODEL = ~ ' FROM U.S. ARMY CORPS 41 0 ~ 2 DISTRICT - UPPER TRINITY ~FLOWLINE ~ 40U 400 _ ELH FORK C~TY-N~DE STORH WATER HANAGEHENT STUDY ~ PUBLIC WORKS DEPARTNENT COPPELL, TEXAS 390 ~i~ ~~ ~Iili~ ~~ ~~ ~111111tl IIII11111 I~LIIIIII IIIIIIIII Illli~lil llillilli ~il'lll~ 390 76000 78000 80000 82000 84000 86000 88000 90000 92000 94000 96000 98000 1 00000 COM~ED WATER SU~ACE D[STANCE' IN FEET PLATE 5-11 ~E~ H, ~F ~SOC~TES, INC, ~LY. I 990 - LEGEND: )(100)-23083C[ ~ Q(100)=,~ 2468cf8 .w,. ~~Q(100)=1 ~681cfs .~. - Q(2)=?432cfl 0(2)=7 ~70cfl Q(2)-S~ 14Scfs BRIDGE 50 ~ 505 ~ CULVERT CREEK YEAR WSEL I DEN~C)N 1Of STARTING AT STATION 18440 ~= 452.38 FROI~ KIMI. EY 2&100 Y.R. WSEL FOR HORI~ & ASSOC.,MASTER DRAINAGE STUDY '. EXISTING CHANNEL & [~ ELM I~ORK - TRINIT~ RIVER WSEL'~ FROM C.O.E. ~-' FLOOD PLAIN CONDITIONS 495 T Y. EL F K I Y AR WSEL = ~ 495 [] 447.23 AT DENTON 3REEK STATIO~I + 9500. ~: - - o I=1 . (D - c ~ - Z - - O '~ _ I-- CROSS SECTION NAME 485 - ~ ~ 485 I11 - o ed - LL - o ~ ~ - Z : _ =; : 475 ~ ~ ~ 475 Z : _o~ : o - ,.,¢: ~' -- / - H - o c c - <[ ~ o e 465' 465 LLI NOTES · · PROFILES BASED ON FULLY 100 YEAR WSEL DEVELOPED LAND USE CONDITION THROUGHOUT 455 455 WATERSHED. 2 YEAR WSEL' · HORIZONTAL AXIS DOES CORRESPOND TO X-SECTION LABELS. 445 -' 445 * DISTANCE IN FEET ALONG 1990 CHANNEL ALIGNMENT. MAY NOT CORRESPOND TO DISTANCES SHOWN IN FIS (1984) DUE TO CHANNEL STRAIGHTENING FOR RECLA- MATION PROJECTS. -FLOWLINE 435 435 DENTON CREEK CITY-WIDE STORM WATER MANAGEMENT STUDY PUBLIC WORKS DEPARTMENT COPPELL, TEXAS 425 425 1 8000 20000 22000 2 4000 26000 28000 30000 32000 3 4000 36000 38000 40000 42000 COMPUTED WATER SURFACE PROFILES · PLATE 5-12 D I S T A N C E I N F E E T ALSEm' H. HALFF ASSOCIATES, INC. JULY. 1