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ST8401-CS 880722
TABLE 1 V~LEY STORAGE CALC~AT[O~ ~T LINE MAD RECLANATION PROJECT / NORTHSTED GROUP RIVER I ~SCRIPTION I VALLEY STORAGE (ACRE-FEET) STATION I [ ................................................... I I tOO-YEAR FLOOD ~ STANDARDPRDJECT FLOOD : ~ EXISTING PROPOSED : EXISTING PROPOSED 80970 l TO ISTART OF PROJECT TO START Or SPLIT FLO~ MODELS 2762.0 3079.9 5138,7 I 5470.E 86560 ~ 8G~O I I TO lEAST SPLIT 346.3 340.3 666.4 I 665.6 89050 l B6560 1 TO ~INTERNEDIATE RUN FOR EXISTING CONDITIONS 421.7 733.8 87300 ~ 8GSGO ~ TO IlNTERNED[ATE RUN FOR PROPOSED CONDITIONS 157,0 ~ 27%9 B?O00 1 87300 ~ TO IMAIN CHANNEL FOR EXISTING CONDITIONS 341.G 593,2 89050 ~ 87000 ~ -TO IMAIN CHANNEL FOR PROPOSED CONDITIONS 435,2 ~ 771.G 89050 ~ 87300 ~ TO 1WEST CHANNEL FOR EXISTING CONDITIONS 140,5 422,5 89050 ~ 87000 ~ TO IWEST CHANNEL FOR PROPOSED CONDITIONS IGT.5 I 451,7 89050 1 ITOTALVALLEY STORAGE I 4012.1 I 4179,9 I 7554,6 ~ 7639.4 IPERCENTAGE OF INCREASED STORAGE FOR PROPOSED CONDITIONS I I 4,18~I I IINCREASE IN C,Y. ~ ~ 270717 I ~ 13~811 STORAGE VOLUMES ARE FROM SPLIT FLOM HYDRAULIC NODELS. ~ate 22-Ju1-88 Albert H. Halff Associates, Inc. FILE:NORT TABLE 2 ELM FORK OF THE TRINITY RIVER HYDRAULIC ~ODELS SPLIT FLON ANALYSIS FaR ~T LINE ROAD RECLANATION PROJECT / NORTHSTED BEV, 0=44~650 CFB (a) ~ ~ EFFECTIVE F,I.S. IREVISED BASE LINE - COMPOSITE PROF'ILES :PROPOSED CONDITIONS - COMP~ITE PROFILE: : LOCATION SECTION: MODELS ~ : : NUNDER : NATURAL FL0ODWAY: NATURAL CHANGE FLOODWAY CHANGE : NAT~AL CHA,qGE FLOODWAY CHASE | : : PROFILE : PROFILE : PROFILE : : (1) (2) : (3) (3-1) (4) (4-2) : (5) (5-3) (6) (6-4) : ........................ . ........ : ................... : ....................................... : ............................. ~ ......... : 75620: 438.20 438.23: 438.20 0.00 438.23 0.00: 438.20 0.00 438.23 0.00 : 77490: 438.36 438.39: 438.36 0,00 438.39 0.00: 439.36 0.00 438.39 0.00 : 80970 : 438.76 438.79: 438.76 0.00 438.79 0.00: 43B.76 0.00 438.79 0.00 : 80971: : 438.76 438,79 : 438.80 0.04 43B.82 0.03 : B3400 : 439.13 439.15: 439.13 0.00 439.15 0.00 : 439.03 -0. I0 439.05 -O. lO : 94750: 439.30 439.32: 439.30 0.00 439.32 0,00: 439.15 -0.15 439. I8 -0.14 : 85000: 439.35 439.37: 439.35 0.00 439,37 0.00: 439,18 -0.17 439.20 -0,17 :START OF EAST SPLIT 86560 [ 439.56 439.58 [ 439.62 0.06 439.64 0.06 ~ 439.36 -0,26 439,38 - -0,26 ~START OF WEST SPLIT 87000 [ [ 439,61 439.63 = 43%36 -0.25 439.37 -0.26 ~ 87170 [ ~ 439.59 439.61 [439.47 -0,12 439,49 -0,12 ~ 87300 ~ = 439.60 439.62 : 439,45 -0.15 439.47 -0.15 ~ 87530 : 439,62 439,64 [ 439,93 0,3! 439.95 0.31 [ 439.83 -O.lO 439.85 -O.lO ~ 87800 ~ 439,70 439,72 ~ 440.18 0,48 440,21 0.49 ~ 440,10 -0.08 440,12 -0.09 [ 87849 I I 440,37 440,37 ~ 440, I4 -0.23 440,16 -0,2! ~D,S,FACE DELT LINE RD 87850 ~ [ 440,36 440.37 ~ 440,13 -0,23 440.15 -0,22 ~ (b) 87900 ~ 439,68 439.70 [ 440.69 t,O! 440.70 0.01 = 440,37 -0,32 440,39 -0,31 ~ (b) 87930 ~ 439.91 439,93 = 440,89 0.98 440,90 0,01 ~ 440.52 -0,37 440,54 -0,36 ~U,S,FACE BELT LINE RD 87940 [ [ 440,96 440.97 [ 440.57 -0,39 440,59 -0,38 ~ 87941 I ~ 440.98 440.99 ~ 440.60 -0.38 440.63 -0,36 I (b) 87960 i ~4[.9~ 441.91 = 441,07 -0.83 441,08 -0.83 I 440.71 -0,36 440.74 -0,34 [ 88000 : 442.15 442,16 [ 441,25 -0.90 441,26 -0,90 I 440.94 -0.31 440,97 -0,29 ID, S, FACE 8IL. SW. R.R, 88030 ~ 442.20 442.21 [ 441,32 -0,88 441.32 -0,89 ~ 44!.03 -0.29 441,05 -0.27 :U.S.FACE StL. SW. R.R. 88050 : 442.23 442.24 : 441.36 -0.87 441.36 -0.88 : 441.08 -0.28 441.10 -0.26 88150 I 442.49 442.50 I 441.56 -0.93 441.56 -0.94 : 441.43 -0.13 441.41 -0.15 ~END SPLIT FLOW MOOEL 89050 I 443.20 443.22 ~ 442.20 -1.00 442.19 -1.03 ~ 442.10 -0.10 442.10 -0.09 (a) FROM FEMA F.I.S. MODEL 'B2OELMFB"I IO0-YEAR FLOOD FOR EXISTING WATERS~D CONDITIOn. (b) SECTIO~ ELIMINATED FROM BASE LINE & PROPOSED CONDITIONS MODELS. WSEL~S INTERPOLATED. Date 07-$u1-~ Albert H. Halff Associates, Inc. TABLE 3 ELN FORK Of' THE TRINITY RIVER HYDRAULIC KDELS SPLIT FLOW ANALYSIS FOR BELT LINE ROAD RECLAflATION PROJECT I NORTHSTED DEV. D:54,800 CrS (a) : ~ 8AGE LiNE CONDITIONS I LOCATION SECTION [ : NUMBER : I ................................ I 75620 : 77490 I 80970 : 80971 I 83400 I 84750 I 85000 ISTART OF EAST SPLIT 86560 : 439.95 439.95 440.04 I 439.75 439.76 439.78 [ -0.20 -0.19 -0.26 :START OF WEST SPLIT 87000 : 87170 : 87300 : 440.04 439.37 : 87530 : 87800 I 87849 ', 441.01 440.84 440.46 ',D.S. FACE BELT LINE RD 97850 :U.S. FACE BELT LINE RD 87940 I 87941 ] 88000 :O.5. FACE StL. SW. R.R. 88030 '.U.S. FACE S%L. SW. R.R. 88050 : 88150 IEND SPLIT FLOW MODEL 89050 ', 443,14 443.10 443.13 I I I : I I :PROPORTIONAL DISCHAR6E I 89050 I 10700 30900 13200 I 11200 30400 i3200 I 500.00 -500.00 0.00 I {PERCENT OF DISCHARGE I ~050 : iS.SZ 56.4Z 24.1Z1 20.4Z 55.5Z 24.12: 0.SZ -0.9~ IBALANCED E6L ~ 89050 I 443.17 443. i8 443. i5 I 443.10 443.08 443.08 I -0.07 -0.10 -0.07 (a) FROM C.O.E. R.E.I.S. MODEL 'ELM86A'; iO0-YEAR DISCHARGE FOR FUTURE CONDITIONS WITHOUT ADDITIONAL DEVELOPHENT IN ME FLOOD PLAIN. Date 07-jul-Bo Albert H. Halff Associates, Inc. TABLE 4 ELR FOI~C ~ TH~ TRTNITY RTVER HYDRAULZC MODELS ANALYSIS FOR BELT LINE ROAD RECLA~TION PROJECT ! NORTHSTED DEV. D:106,000 CFS Ca) [ t : DASE LINE CONDITIONS ~ RECLAMATION ALTERNATE NO, 3 ~ CHANGE IN BACK#ATER PROFILE ~ LOCATION ~ ~CTION ~ ~ : : NUMBER : : ~ i : WEST MAIN EAST ~ WEST MAIN EAST : WEST MAIN EAST ~ ....................... ~ ......... ~ ............................. : ............................. : ............................. ~ I 75620 ~ 444.75 444.79 444.79 I 444.79 444,79 444.79 ~ 0.00 0,00 0,00 ~ i 77490 ~ 444,92 444,92 444.92 ~ 444,92 444,92 444,92: 0,00 0,00 0,00 ~ i 80970 ~ 445.21 445.21 445.21 ~ 445,2! 445.21 445.21 i 0.00 0,00 0,00 ~ ~ 80971 ~ 445,21 445,21 445,21 ~ 445,23 445,23 445,23 ~ 0.02 0,02 0,02 ~ ~ 83400 ~ 445,49 445,49 445,49 i 445,44 445,44 445.44 i -0;~' -0.05 I I 84750 I 445,62 445.62 445,62 I 445.55 445.55 445.55 I -0.07 -0.07 -0.07 ~ : 85000: 445.67 445,67 445,67 ~ 445.58 445.58 445.58 : -0,09 -0.09 -0.09 :START OF EAST SPLIT ; 96560 I 445,77 445,77 445.80: 445,66 445,66 445,67: -0,11 -0,11 -0.13 ~START OF WEST SPLIT : 87000: 445,86 445,86 ~ 445.65 445,68 : -0.21 -0.19 : ~ 87170 ~ 445.85 I 445.95 : 0.00 : : 97300 ? 445.87 445.56 : 445.79 44§.55 : '~ : : 87530: 445,95 445.92 445.88: 445,97 445.97 445,76 : -0.08 ~,(~5 -~.2~ I I 87800 I 445.98 446.07 44G.00 I 445.99 446.11 445.89 I 0.01 0.04 -0,11 I I 87849 ~ 445.89 446.03 445,90 I 446.21 446.07 445.77 I 0.32 0.04 -0.13 IO.S. FACE BELT LINE RD ~ 87850 ~ 445.53 445.91 445.77 ~ 445.86 445.% 445.65 I 0.33 0.05 -0.12 IU.S. FACE BELT LINE RD ~ 87940 I 448.62 446.85 447.50 I 448.72 446.89 447.45 I 0. I0 0.04 -0.05 ~ I 87941 I 449.11 447.31 448.12 I 449.18 447.36 448.09 I 0.07 0.0~ -0.03 I I 88000 I 449.28 447.42 448.50 ~ 44%34 447.46 448.49 ~ 0.06 0.04 -0.01 ID.$. FACE StL, SW. R.R.I OB030 ~ 449.28 447.41 448.53 I 44%34 447.44 448.52 I 0,06 0.03 -0.01 IU.S. FACE StL. SW. R.R.I 88050 I 449.31 447.56 448.65 ~ 449.37 447.60 448.64 ~ 0.06~ 0.04 -0.01 I I 88150 ~ 449.43 448.B0 449.38 ~ 449.58 448.83 449.40 ~ 0.15 0.03 0.02 IEND SPLIT FLOW MOOEL ~ 89050 ~ 449.70 449.72 449.74 ~ 449.74 449.75 449.78 ~ 0.04 0.03~ 0.04 I I I I i I IPROPORTIONAL DISCHARGE I 89050 I 29000 51100 25900 I 28600 51000 26400 I -400.00 -I00,00 500.00 IPERCENT OF DISCHARGE I 89050 I 27.4l 48,2% 24.4%l 27.0% 48.1l 24.9%1 -0.4% -0.11 IDALANCED EGL I 89050 I 449.75 44~.77 449.76 : 449.8 449.8 44%79 : 0,05 0.03 0.03 (a) FROM C.O.E, R,E.I,S. MODEL "ELMOGA"; STANDARD PROJECT FLOOD FOR FUTURE CONDITIONS WITHOUT ADDT'L DEV. IN THE FLOOD PLAIN. Date 07-Jui-88 Alber~ H. Halff Associate% Inc. EUt FORK OF THE TRTNITY RIVE~ HYDRAULIC NODELS I rLOODMAY PROFTLES SPLIT FLO# ANALYSIS FO~ BELT LINE ROAD RECLARkTION PROJECT / NORTHSTED DE'V, Q=44f650 CFS (a) ~ ~ ~ REVISED BASE LINE CONDITIONS ~ RECLANATION ALTERNATE NO. 3 I LOCATXON I SECTION I i [ I NUNBER I COHPOSITEI CDHPOSITEI I I I WEST HAIN EAST PROFILE I WEST HAIN EAST PROFILE I I 75620 : 438,23 438,23 438,23 438,23 : 438,23 438,23 438,23 438,23 I I 77490 I 438.39 438.39 438,39 438,39 : 438,39 438.39 436,39 438.39 : I 80970 I 438.79 438.79 438.79 438.79 t 438.79 438.79 438.79 438.79 I I 80971 ~ 438.79 438.79 438.79 438.79 ~ 438.82 438.82 438.82 438.82 I [ 83400 I 439.15 439.15 439.15 439.15 [ 439.05 439.05 439,05 439.05 ~ I 84750 I 439.32 439.32 439.32 439.32 ~ 439.18 439,18 439.18 439.18 : ~ 85000 I 439,37 439,37 439.37 439,37 ~ 439,20 439.20 439.20 439.20 :START 0¢ EAST SPLIT : 86560 I 439.55 439.55 439.64 43%64 i 439,33 439.34 439.38 439.38 ISTART OF WEST SPLIT ~ 87000 ~ 439,63 439,63 439,63 I 439,37 439,37 439.37 ~ [ 87170 [ 439.61 439,61 [ 439,49 439.49 : [ 87300 ~ 439.62 439.10 439.62 ~ 439.47 438.98 439.47 ~ ~ 87530 ~ 439.82 439,95 439,75 439.95 I 439,58 439.85 439.50 439.85 I I 87800 I 439.92 440,21 439.96 440.21 I 439,68 440,12 439.74 440.12 I I 87849 I 440.37 440.25 439.96 440.37 I 439.66 440,1G 439.75 440.16 ID.S. FACE BELT LINE RD : 87850 I 440.37 440.24 439.96 440.37 I 439.66 440.15 439.75 440.15 :U.B. FACE BELT LINE RD I 87940 : 440.97 440.47 440.52 440.97 : 440.59 440.38 440.36 440.59 I I 87941 I 440.99 440.51 440.55 440.99 I 440.63 440.42 440.39 440.63 I : 88000 I 441.26 440.57 440.99 441.26 I 440.97 440.48 440.86 440.97 :O.S. FACE StL. SM. R.R.: 88030 I 441.32 440.62 441.09 441.32 : 441.05 440.53 440.97 441.05 IU.S. FACE StL. SM. R.R.[ 88050 I 441.36 440.66 441.13 441.36 : 441.10 440.57 441.01 441.10 : I 88150 I 441.56 441,11 441.52 441.56 I 441.35 441.01 441.41 441.41 :ENO SPLIT FLOW HOOEL [ 89050 : 442.17 442.14 442.19 442.19 : 442.08 442.05 442.10 442.10 ................................................................................................................... I I I IPROPORTIONAL DISCHAR6E I 89050 : 8000 26350 10300 44650.00 : 8400 26100 10300 44800.00 :PERCENT OF DISCHAR6E I 69050 I 17.9l 59.01 23.1X iO0.OZI 18.8I 58.5I 23.12 IO0.3ZI IBALANCED ESL I 89050 I 442.20 442.22 442.20 442.22 I 442.11 442.13 442.12 442.13 (a) FROR FERA F.Z.S. HODEL '820ELHFB'l IO0-YEAR FLOOD FOR EXZSTIN6 #ATERSHED CONDITZON$. Date 07-Jui-88 Albert H. Halff Associates, Inc. EUI FORK OF' THE TRTNITY RIVER HYDRAULIC NODEL$ I N~TORAL PROFILES SPLIT FLOW ANALYSIS FOR ~LT LINE RO~D NECLANATIBN PROIECT ! NORTHSTED DEV. 0=44,6,50 CFI I i I REVISED BASE LINE CDNDZTZONS I LOCATION : SECTION I I : NUHDER I I ; I 75620 ~ ~ 774~0 ~ ] 80570 ~ ~ 00971 ~ ~ 83400 I J 84750 I 439.30 439,30 439.30 439,30 ~ 439.15 439.15 439.15 439.15 ~ ~ 85000 ISTART or EAST SPLIT ~ 86560 :START OF WEST SPLIT ~ 87000 J I 87170 I J 87300 ~ J 87530 I : 87800 I I 87849 ID.S. rACE BELT LINE RD : 97850 :U.S.rACE BELT LINE RD ~ 87940 ~ : 97941 ~ : SSO00 :D.S.FACE StL. SW. R.R.: 58030 :U.S.rACE StL. SW. R.R.: ~S050 ~ : BBI~O :ENO SPLIT ~LOWHOBEL :S9050 IPROPORTIONAL DISCHARSE I 89050 I 8000 26200 10450 44650 I 8350 26050 10400 44800 IPERCENT OF DISCHAR6E : 89050 : 17.92 58.72 23.4Z I00,0%l 1B.7% 58,32 23.3Z lO0.3Zl IBALANCED ESL I 89050 J 442.19 442,19 442.21 442.21 I 442.09 442.11 442.11 442.11 I I I l (a) FROH FEI~ F,I,S, ~ODEL "B20ELHFD"i IO0-YEARfLOOD FOR EIISTIN8 W~TERSHED CONDITIONS, Date 07-Ju~-88 Albert H, Xaiff Associates, lac.