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CF-Andrew Park 1-SY 921111
EXISTING LANDUSE DISCHARGES ~ BROWN JR. COMMLTx'IT~ PARK ~ o~ Co~ ~ * BASE MODEL REVISED BASE MOD.~L PROPOSED MODEL 2~30 453.52 6.86 453.~2 6.86 453..~2 6,~ O.O 2~770 453.97 5-50 453.97 5.50 453.97 5.50 0.0 26830 454.69 5.48 4~f~ 5.48 454-.69 5.48 0.0 454.71 5.53 454..71 $.53 0.0 26880 27165 A.udr~w Brown Jr. 455.22 3.69 4~5.21 3.93 C~-~ Paxk - E. Parking Lot 274~9 North Ba:~bal] Fit:Id 45531 3.39 455.35 2.40 +0.04. 27748 45538 . 5.50 455.40 3.75 455.40 2.5'i 0.0 (28080) Nc~th R~hall F~r. ld 455.53 2~96 455.44 2.73 -0.09 27992 455.60 236 455.49 2.21 -0.11 28,S92 4.56.03 3.69 455.64 2.41 455.53 236 -0. (28870) £a~ Lak= 455.68 2.68 45537 2.48 -0.1 455,6g 3.65 45526 3.85 -0.13 28890 2912A 456.27 4.00 455.75 4236 455 .55 5 AB -0.20 (29610) Fourplcx Basoball Fields 456.02 3.78 456.05 3.93 +0,03 29651 Z9831 Wost Lak~ 456,09 3.76 456.15 3,44 +0.06 30027 456,61 4.77 456,08 5,42 456,13 525 +0.05 (30570) 456.25 6.9/ 456~7 6.95 +0.02 30B84 30604 45631. 6,82 4~6.66 6.90 456.69 6.80 (31230) 30958 Wost B~bal~ Fi~lda 457,44 3.97 457.43 3,66 -0,01 31335 End - Androw B~ow~ Jr. 457.52 6,70 ,~,57,03 1125 -0A9 t"~m. Park - W. P--k'h~E Lot 32150 r'a-~r~ Tap Rd, 457.40 11.24 45635 12.04 457,10 1132 +0-~5 ', 456,88 143! 45533 ?,6,06 45631 15.03 +0,68 32200 32230 457.14 14,~7 4~6.69 14.79 456~0 14.50 +0~,1 32230 459.91 5.82 459,72 5.98 459.80 5,91 +0.1~ 32305 459.73 7.85 459..M 8.09 459.62 7.9~ +0.08 32725 460.99 3.52 ~60.88 3.63 460.95 338 +0.05 33145 461.20 3.96 46~..10 4.00 461 .L~ 3.95 +0.05 33470 461.47 4..89 461.38 4..95 461.42 4.93 +0.04. 342~0 46236 3.26 462.29 3.28 46232 3.27 +0.03 3,~850 46238 8.73 46232 8.78 46234 8.76 +0.02 34950 463A9 5.66 463.43 5.76 463.46 5.72 +0.03 36970 465.98 :5.13 465.98 5.13 465.98 5.13 0.0 38200 466.70 2.88 466.70 2.88 466.70 2.88 0.0 39290 466.98 3.35 466.98 3.35 466.98 335 0.0 3~,40 466.71 7.23 466.71 7.23 466.71 7.23 0.0 I:'~AV O~12Z3 ~I~\TAB LEVE SURFACE EL~¥ATION COMPARISON FLOODWAY AN~limw BmOWN .~. Com~qrx~ P.~ CrrY og CoPl, m~ ~ * BASE MODEL RflVISED BASE MODEL PROPOSF~D MODP_I, 2~530 453.52 4.54.11 59 45352 454.11 59 45352 454.11 .59 25770 453.97 45451 54 453.97 4:5451 _~ 453 ~97 4545X .54 26830 454.69 455.08 .39 454.69 455.08 .39 454.69 455.08 .39 26880 454.71 45533 .62 454.71 455.33 .62 27165 And~w B~own Jr. 455~ 455.74 ~2 455221 455.73 27449 North Ba~ball Field 45531 455.82. .51 455.335 455,84, .49 27748 45538 455.95 57 455.40 455.89 49 455.40 45538 ,48 (2.8080) Not'~ R.~V,a]I 27992 455.53 456.00 .47 455.44 455.92 .48 28168 455.60 456.05 45 455.49 455.96 .47 28492 456,03 456.60 57 455.64 456,09 '45 455.5:3 455.99 .46 (28870) E~m 28720 455.68 45~,12 .,44 455.57 456.03 ,46 28890 455.69 456.13 ,,44 455.56 456.0'2 46 29124 456,,27 456.99 .72 455.75 456.18 ,43 455,35 456.01 .46 (29610) Fou.rplcx R.~l-,all F'~.ld~ 29651 456.02 45641 .39 456.05 456.42 .37 29831 West Lak~ 456.09 45647 .38 456.15 456.51 .36 30027 456.61 457.25 .64 456.08 456.45 .37 456.13 45649 .36 (30~70) 30384 456225 45659 34 456.27 456.60 33 30604 45631 45742 .6]. 456~6 456.98 32 4~6.69 457.00 .31 (31230) 30958 We. st ~._~.11 Ficld~ 457.44 457.68 .24 4~743 457.66 .23 3].335 End - Andrew Brown Jr. 457.52 457.75 .23 4Y/.03 4~7.10 .07 32/50 D""'~ Tap I~L 457.40 457~7 .47 4~6.55 456.79 ~4 457,10 457.11 .01 32/00 456.88 457.41 53 455~ 456.14 ~]. 45651 45653 ,02 32230 457.14 457.59 ,45 456.69 4~6.73 .04 4~6.90 4~6~5 .0~ 32250 459~)! 460.07 .16 459.72 459.68 -.0~ 45930 459.76 -.0~ 32305 459.73 459.87 .14 45954 45945 -.09 459~2 45953 -.09 32725 460.99 461.2/ 222 4~0~ 460.98 .J0 460.93 46]. .01 ,09 33145 4~1.2l) 46]..45 -25 4~1.10 461.25 .14 4~1.15 4~L2.9 .14 35470 461.47 461.70 /3 4612.~ 461.5~ .13 4~1.42 4~1 ..~ .13 342/=0 461.36 46?,.56 ./0 ~ 462'42 13 4~/~2 4~2A.~ 13 348~0 462,38 46157 .19 461.32, 4~7-44 .12 4~2,.34 4~7-4~ .12 34950 463.49 4~3.40 -.09 4~3.43 463.Z7 -.17 4~.46 463.30 -.16 3~770 4~5.98 4~6.5~ 58 46~.98 4~6.54 56 46~.98 4~ .~7 382~0 4~.70 467.34 .~, 4~6.70 467.33 .~3 4~6.70 467.33 .63 39290 466.98 467.63 .65 466.98 467.62 .64 466.98 467.62 39440 466.71 467.32 .61 466.71 46730 .59 466.71 467.31 .60 I:~AVOk12/3 ~I&HX~YTABLEFL * DOWDY - APPROVED LAK~ PARK ADDITION FB3AA MODEL TABLE rl FULLY DEVELOPED MODELS WATER SURFACE ELEVATION COMPARISON 100 - YEAR FLOOD COPPELL COMMUNITY PARK X-SEC. DESCRIPTION DCEXULT3 DENCR-DW PROPOSED DIFF.WSEL 184+40 End-DeForest Rd. 452.38 452.38 452.38 0.00 193+30 Vista Ridge 452.51 452.51 452.51 0.00 199+30 (Vil. of Coppell) 452.51 452.51 452.51 0.00 215+60 452.67 452. 67 452.67 0.00 223+70 452.90 452.90 452.90 0.00 238+00 453.38 453.38 453.38 0.00 244+00 453.88 453.88 453.88 0.00 247+00 453.94 453.83 453.83 0.00 255+30 454.06 453.96 453.96 0.00 257+70 454.55 454.46 454.46 0.00 268+30 455.37 455.29 455.29 0.00 268+80 455.35 455.35 0.00 271+65 Coppell Comm. Pk. 455.84 455.84 0.00 274+49 " 455.94 455.95 0.01 277+48 (280+80) " 455.52 456.05 456.00 -0.05 279+92 " 456.16 456.06 -0.10 281+68 " 456.22 456.10 -0.12 284+92 (288+70) " 456.21 456.26 456.14 -0.12 287+20 " 456.31 456.18 -0.13 288+90 " 456.34 456.20 -0.14 291+24 (296+10) " 456.46 456.44 456.26 -0.18 296~-51 456.71 456.73 0.02 298+31 456.78 456.81 0.03 ' 300+27 (305+70) 456.81 456.84 456.85 0.01 303+84 - 457.23 457.20 -0.03 306+04 (312+30) " 457.02 457.88 457.87 -0.01 309+58 458.44 458.39 -0.05 313+35 End-Coppell Pk. 458.58 458.36 -0.22 321+50 Denton Tap Rd. 457.64 458.35 458.35 0.00 322+00 " 457.31 458.25 458.26 0.01 322+30 " 457.86 458.67 458.67 0.00 323+05 " 458.20 458.69 458.70 0.01 327+25 463.25 463. I0 463.10 0.00 331+45 463.50 463.37 463.37 0.00 334+70 463.71 463.59 463.59 0.00 342+60 464.11 464.01 464.01 0.00 348+50 464.38 464.29 464.29 0.00 349+50 464.60 464.52 464.52 0.00 369+70 467.33 467.32 467.32 0.00 382+00 468.11 468.11 468.11 0.00 392+90 S.H. 121 468.31 468.30 468.30 0.00 394+40 468.16 468.15 468.15 0.00 Valley Storage: Exisung ColrldilJ. ons= 738 a¢-fl Proposal C~ditions = 772 ac-ft FEMA FLOODWAY CRITERIA MODELS ANDREW BROWN JR. COMMUNITY PA~K CITY OF COPPELL, T~XAS * BASE MODEL REVISED BASE MODEL PROPOSED MODEL 25530 453.52 454.11 0.59 453.52 454.11 0.59 453.52 454.11 .59 25770 453.97 454.51 0-54 453.97 454.51 0.54 453.97 454.51 .26830 454.69 455.08 059 454.69 455.08 0.39 454.69 455.08 .39 26880 454.44 455=33 0.89 455.44 455.33 .89 27165 And~w Rmwn Jr. 454.99 455.74 0./5 454.98 455.73 ./5 C~nun. Pa,-k - E. Pa~ki~ Lot 27449 No~h Barbed] FieJd 455.10 455.82 0.72 4~5.13 455~4 .71 27748 454.68 455.95 1~7 455.20 455.89 0.69 455.19 455.88 .69 (28080) North lia~ball F'~ld 27992 455.34 456.00 0.66 455.24 455.92, .68 28168 455.41 456.05 0.64 455.30 455.96 .66 28492 455.50 456.60 1.10 455.46 456.09 0.63 455.34 455~9 .65 (2887O) Eas~ Lak= 28720 455.50 4~56.12 0.62 455~8 456.03 .65 28890 455.51 456.13 0.62 455_T/ 456.02 .65 2.9124 455.81 456.99 1.18 455..V7 456.18 0.61 455.35 456.0! .66 (29610) Fourpl=x Ba~ball 29651 455~7 456.41 0.54 455.90 456.42 .52 29831 We, st Lak= 455.94 456.47 0.53 456.01 456.51 .50 30027 456.21 457.25 1.04 455.93 456.45 0.52 455~9 456.49 .50 (30570) 30384 456.11 456.59 0.48 456.14 456.60 .46 3O6O4 4~.4~ 4~7.42 0.97 4.~.53 4~6.98 0.45 4~6.S7 4.V7~0 .43 (31230) 3o~8 Wes~ Bamb~ll Fields 457-.~ 49.68 0.~ 45~4 4~7~ =32. 31335 ~d o An~w Bmw~ Jr. 49~3 457.?~ 0=32 49.01 45~.10 Cm~ P~k - W, Pad~n~ L~ 32~0 D~mm~ Tsp Rd. 4~,11 457~ 0.?6 4~5 4~.79 0~4 4~.09 45~.11 .0~ 322~0 4~.~ 4~7.41 0~7 455.?1 4~.14 0.43 45~.51 4Y~.5~ .0~ 323~ 459.6~ 459~7 0~.~ 45~.55 459.~5 0,10 459.~ 4~-~ 3~72~ 4~0.92 4~1.21 0,~ 4~0~ 4~0~8 0.10 4~0.9~ 451.0~ ,0~ 33145 4~1.14 461.45 0.31 4~1.11 461.~ 0.14 4~1.13 4~1~ .14 ~?0 4~1~ 451.72 0~8 451~8 4~1.51 0.13 4~1.42 461.55 34260 462.37 462~2 025 462.2~ 462.42 0.13 462.32 462~,5 .13 34850 462.39 462.62 0.23 462.32 462.44 0.12 462..34 462.46 .12 34950 463.50 463.45 -0.05 463.44 463.27 -.17 463.46 463.30 -.16 36970 466.D'/ 466.68 0.61 465.98 466..54 .56 465.98 466.55 .57 38200 466.76 467.43 0.67 466.70 467.33 .63 466.70 467=33 .63 39290 467.04 467.71 0.67 4~6,98 467.62. .64 466.98 467.62 .64- 39440 466.77 46'7.40 0.63 466./1 467.30 -59 466.71 467.31 .60 I:~VGM. 2239~Iak[N~\TABLI~L * DOWDY - APPROVED LAKE PARK ADDITION FEMA MODEL TABLE II Mesa 5C FULLY DEVELOPED MODELS WAIER SURFACE ELEVATION COMPARISOhl 100 - YEAR FLOOD COPPELL COMMUNI'W PARK X-SEC. DESCRIPTK:)N .... ,,~,, o DENCR-DW d-.[ Rd. 452.38 452.38 99+30 223+70 ¸oo ¸00 3O -65 274~49 Comm. Pk. q81+68 288+90 " 303+84 " Pk. 321+50 Denton l'ao Rd. 322-~ 30 " -05 " .00 .9O fS.H. 121 Fi~: I .%~V OX12.2~ 9XI ~,~ hI'~IZ~'DWS 12L.W Q 1 Mesa5C PROPOSED 452.38 4.52.51 452.51 452.51 DIFF. WSEL 0.00 452.51 452.51 452.51 0.00 4.52.67 452.67 452.67 0.00 452.90 452.90 452.90 0.00 453.88 453.9.~ 454.06 ~.55 455.37 453,88 453.88 0.00 453.83 453.83 0.00 453.96 453.96 0.00 454.46 454.46 0.00 455,241 455.24 0.00 455.59 455.59 0.00 455.69 455.70 0.01 455.94 455.82 -0.12 453,00 455.87 -0,13 456.05 ~55.92 -0.13 456.10 455.96 -0.14 456.13 455.98 -0.15 456.53 456.56 456.61 &56.64 456.21 457.08 457.06 457.02 457.76 457.75 458.34 458. 0.03 0.03 -O.O2 --0.01 -0.05 458.48 458.25 -0.23 457.6.~ 459.26 458.26 0.00 45/.o 457.86 458.16 I 458.16 458,60 t 458.60 zL58,62 458.62 0.00 0.00 0.00 458.20 463.50 463.71 4Cq.1' 464.38 464.60 467,33 468.'11 468.31 4__68_,_1.6_ 463.38 46x3.38 0.00 __ 464.53 '[ 464.53 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Valley Storage: Existing Conditions = 783 ac-f[ Proposed Conditions = 772 ac-f[