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Home My WebLink AboutDrainage Reportwarning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #100yr Post E.G. Elev (ft) 263 .33 Element Left OB Channel Right OB Vel Head (ft) 0.25 Wt . n-Val . 0.085 0.055 0 .085 w.s . Elev (ft) 263 .08 Reach Len . (ft) 850.00 850 .00 850 .00 Crit W.S . (ft) Flow Area (sq ft) 218.75 78 .47 101 .96 E.G. Slope (ft/ft) 0 . 005271 Area (sq ft) 218.75 78 . 4 7 101 .96 Q Total (cfs) 1117 . 00 Flow (cfs) 396. 4 7 449 .36 271 .17 Top Width (ft) 173.82 Top Width (ft) 128.13 13 .14 32 .54 Vel Total ( ft/s) 2 .80 Avg. Vel. (ft/s) 1. 81 5 . 73 2 .66 Max Chl Dpth (ft) 7 .48 Hydr. Depth (ft) 1. 71 5 . 97 3 .13 Conv. Total (cfs) 15385 .7 Conv. (cfs) 5461 .1 6189 .5 3735 .1 Length Wtd . (ft) 850.00 Wetted Per. (ft) 128.18 15. 73 33 .61 Min Ch El (ft) 255.60 Shear (lb/sq ft) 0 .56 1. 64 1. 00 Alpha 2 .05 Stream Power (lb/ft s) 1. 02 9 .40 2 .65 Frctn Loss (ft) 4 .99 Cum Volume (acre-ft) 25 .05 4. 57 4 .00 C & E Loss (ft) 0 .00 Cum SA (acres) 16.85 0 .91 3 .34 Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS: 6900 INPUT Description: Station Elevation Data num= 11 Sta Elev Sta Elev Sta Elev Sta 7 97 260 918 258 1000 257 .12 1227 .24 1269.82 255 .13 1277.72 250.75 1288.22 254 .99 1312 .83 1503.58 262 .6 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 797 .085 1269.82 .055 1288.22 .085 Bank Sta: Left Right Lengths: Left Channel Right 1269.82 1288 .22 825 800 775 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 257 .85 Element Vel Head (ft) 0.20 Wt . n-Val . w.s . Elev (ft) 257 .65 Reach Len . (ft) Crit W.S. (ft) 257 .12 Flow Area (sq ft) E.G. Slope (ft/ft) 0 .005240 Area (sq ft) Q Total (cfs) 1048.00 Flow (cfs) Top Width (ft) 358.94 Top Width (ft) Vel Total ( ft/s) 2 .09 Avg . Vel . (ft/s) Max Chl Dpth (ft) 6.90 Hydr. Depth (ft) Conv. Total (cfs) 14477 .2 Conv. (cfs) Length Wtd . (ft) 813.72 Wetted Per. (ft) Min Ch El (ft) 250.75 Shear (lb/sq ft) Alpha 2 .90 Stream Power (lb/ft Fr ctn Loss (ft) 6.68 Cum Volume (acre-ft) c & E Loss (ft) 0 .01 Cum SA (acres) Elev Sta Elev 255.85 1244 .32 254 .84 258.08 1412 .83 260.32 Coe ff Contr. Expan. .1 . 3 Left OB Channel Right OB 0.085 0 .055 0 .085 825.00 800.00 775.00 385.60 87.43 28 .21 385.60 87 . 43 28.21 553.29 4 51. 7 5 42. 96 319. 34 18.40 21. 20 1. 43 5 .17 1 .52 1. 21 4 .75 1. 33 7643 .2 6240.5 593 .5 319.38 20 .36 21 .36 0 .39 1. 40 0 .43 s) 0 .57 7.26 0 .66 11.76 2.50 1. 37 10. 77 0 .59 1. 76 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Exhibit E-3 17 of21 CROSS SECTION OUTPUT Profile fflOOyr Post E.G. Elev (ft) 258 .34 Element Left 08 Channel Right OB Vel Head (ft) 0.23 Wt . n-Val . 0.085 0 .055 0 .085 w.s . Elev {ft) 258 .11 Reach Len . {ft) 825 .00 800.00 775.00 Crit W.S . {ft) 257 .54 Flow Area (sq ft) 541 .04 95 .83 38 .74 E.G. Slope (ft/ ft) 0 .006369 Area (sq ft) 541. 04 95 .83 38 .74 Q Total (cfs) 1644 .00 Flow {cfs) 993 .26 580.37 70 .37 Top Width (ft) 402 .65 Top Width (ft) 358 .37 18 .40 25 .87 Vel Total (ft/s) 2 . 4 3 Avg . Vel. (ft/s) 1 .84 6 .06 1. 82 Max Chl Dpth (ft) 7 .36 Hydr. Depth (ft) 1 .51 5 .21 1. 50 Conv. Total (cfs) 20600.3 Conv. (cfs) 12446 .1 7272 .4 881. 8 Length Wtd . (ft) 815.32 Wetted Per. (ft) 358 .41 20.36 26 .07 Min Ch El (ft) 250. 7 5 Shear (lb/sq ft) 0 .60 1. 87 0 .59 Alpha 2 .55 Stream Power (lb/ft s) 1.10 11. 34 1. 07 Frctn Loss (ft) 6.75 Cum Volume (acre-ft) 17 .64 2 .87 2 .63 c & E Loss (ft) 0 .01 Cum SA {acres) 12.11 0 .60 2.77 Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS : 6084 INPUT Description : Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta 917 252 958 250 1000 249 .94 1046.35 1224 .66 249 .58 1310. 49 248.9 1315.19 245 .75 1316.84 1325.11 249 .95 1350. 48 250 .13 1425.92 252 .19 1435.92 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 917 .085 1310.49 .055 1320.33 .085 Bank Sta: Left Right Lengths : Left Channel Right 1310.49 1320 .33 250 250 275 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev {ft) 251 .16 Element Vel Head (ft) 0.25 Wt . n-Val . w.s. Elev (ft) 250.91 Reach Len . (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .014663 Area (sq ft) Q Total (cfs) 1048.00 Flow (cfs) Top Width (ft) 439.65 Top Width (ft) Vel Total (ft/s) 2 . 45 Avg . Vel . {ft/s) Max Chl Dpth (ft) 5.22 Hydr. Depth (ft) Conv. Total (cfs) 8654 .5 Conv. (cfs) Length Wtd . (ft) 251 .39 Wetted Per. (ft) Min Ch El (ft) 245.69 Shear (lb/sq ft) Alpha 2 .70 Stream Power (lb/ ft Frctn Loss (ft) 1. 81 Cum Volume (acre-ft) c & E Loss (ft) 0 .04 Cum SA (acres) Elev Sta Elev 250 .4 1130 . 88 250. 47 245.69 1320.33 248 .71 252 .49 1445. 92 252 .69 Coe ff Contr . Expan . .1 .3 Left 08 Channel Right 08 0.085 0.055 0.085 250.00 250.00 275.00 348.44 38 .35 40. 72 348 .44 38.35 40. 72 7 07 .19 273.39 67.42 371.13 9.84 58 .68 2 .03 7 .13 1. 66 0 .94 3 .90 0 .69 5840.0 2257 .7 556.7 371.16 11. 92 58.85 0 .86 2 . 94 0 .63 s) 1. 74 20.99 1. 05 4 .81 1. 34 0 .76 4 .23 0 .33 1.05 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Profile #lOOyr Post 251 .58 0.19 251. 39 0 . 011361 Element Wt . n -Val . Reach Len . (ft) Flow Area (sq ft) Area (sq ft) Left 08 0.085 250.00 527 .44 527 .44 Channel 0.055 250.00 43.04 43.04 Right 08 0.085 275.00 72.80 72.80 Exhibit E-3 18 of21 Q Total (cfs) 1644 .00 Flow (cfs) 1220.91 291 .60 131. 4 8 Top Width (ft) 466 .84 Top Width (ft) 380 .89 9.84 76.12 Vel Total ( ft/s) 2 .56 Avg . Vel . (ft/s) 2 .31 6. 78 1. 81 Max Chl Dpth (ft) 5 .70 Hydr. Depth (ft) 1. 38 4 . 37 o. 96 Conv . Total (cfs) 15423.7 Conv. (cfs) 11454 .4 2735 .8 1233 .6 Length Wtd . (ft) 251 .85 Wetted Per. (ft) 380 .93 11 .92 76 .29 Min Ch El (ft) 245.69 Shear (lb/sq ft) 0 .98 2 .56 0 .68 Alpha 1 .90 Stream Power (lb/ ft s) 2 .27 17 .35 1. 22 Fr ctn Loss (ft) 1. 7 4 Cum Volume (acre-ft) 7 .52 1 .59 1. 63 c & E Loss (ft) 0 .02 Cum SA (acres) 5 .11 0 .34 1. 87 warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-lb RIVER : Trib . of Alum Cr RS : 5660 INPUT Description : Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta 737 250 911 248 1000 247 .81 1068.63 1222.23 248 .21 1227 .41 242 .36 1230.48 242 .57 1244. 43 1371.42 250 .03 1391 .42 250 .37 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 737 .085 1222.23 .055 1244 .43 .085 Bank Sta : Left Right Lengths: Left Channel Right 1222.23 1244 .43 350 450 475 CROSS SECTION OUTPUT Profile HlOyr Post E.G. Elev (ft) 249.32 Element Vel Head (ft) 0.12 Wt. n -Val . w.s. Elev (ft) 249.19 Reach Len . (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .004381 Area (sq ft) Q Total (cfs) 1121. 00 Flow (cfs) Top Width (ft) 518.54 Top Width (ft) Vel Total (ft/s) 1. 71 Avg . Vel . (ft/s) Max Chl Dpth (ft) 6.83 Hydr. Depth (ft) Conv. Total (cfs) 16936.8 Conv. (cfs) Length Wtd . (ft) 410.23 Wetted Per. (ft) Min Ch El (ft) 242.36 Shear (lb/sq ft) Alpha 2.65 Stream Power (lb/ ft Frctn Loss (ft) 3. 4 3 Cum Volume (acre-ft) c & E Loss (ft) 0.08 Cum SA (acres) Elev Sta Elev 247 .42 1149 .06 247 .78 247 .95 1265.1 248 .09 Coe ff Contr . Expan . .1 . 3 Left OB Channel Right OB 0.085 0.055 0 .085 350.00 450.00 475.00 501 .22 95.80 57 .70 501.22 95.80 57 .70 657 .55 410.29 53.16 415.15 22.20 81. 20 1. 31 4.28 o. 92 1. 21 4 .32 0 .71 9934 .7 6199.0 803.2 415.16 25.84 81 .21 0 .33 1. 01 0 .19 s) 0 . 43 4 . 34 0 .18 2 .37 0 .96 0.44 1. 98 0 .24 0.61 Warning : The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1.0 ft (0.3 m). between the curr ent and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S. (ft) E.G. Slope (ft/ft) Q Total ( cfs) Top Width (ft) Vel Total (ft/s) Profile #lOOyr Post 249.82 0.13 249.69 0 .004780 1809.00 589.02 1. 95 Element Wt . n -Val. Reach Len . (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg . Vel. (ft/s) Left OB Channel Right OB 0.085 0.055 0 .085 350.00 450.00 475.00 718. 30 106.83 104.83 718.30 106.83 104 .83 1171.19 513.96 123.85 458 .39 22.20 108.44 1. 63 4 .81 1.18 Exhibit E-3 19 of 21 Max Chl Dpth (ft) 7 .33 Hydr . Depth (ft) 1. 57 4.81 0. 97 Conv . Total (cfs) 26165 .9 Conv. (cfs) 16940.4 7 4 34 . 1 1791. 4 Length Wtd . (ft) 4 01. 4 8 Wetted Per. (ft) 458 .40 25 .84 108 . 4 5 Min Ch El (ft) 242 .36 Shear (lb/sq ft) 0 .47 1. 23 0 .29 Alpha 2 .22 Stream Power (lb/ ft s) 0 . 76 5 .93 0 .34 Frctn Loss (ft) 3 .14 Cum Volume (acre-ft ) 3 .95 1.16 1. 07 c & E Loss (ft) 0 .05 Cum SA (acres) 2 .70 0 .25 1. 28 Warning: The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS : 5154 INPUT Description: Station Elevation Data Sta Elev Sta 1000 24 7 . 07 1029 .58 1172 .2 242.23 1208 .45 1315.83 245 .78 1365.83 Manning 's n Values Sta n Val Sta 1000 .085 1241 .84 Bank Sta: Left Right 1241.84 1268.06 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Cri t W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 14 Elev Sta Elev Sta 24 5 . 97 1065.83 245 .16 1115.84 245.06 1241.84 245 .83 1255.93 245 .56 1415.83 246 .3 1443 .75 num= 3 n Val Sta n Val .085 .055 1268 .06 Coeff Contr. .1 Profile #lOyr 245.80 0 .93 244 .87 244 .87 0 .022212 1113.00 131. 88 5 .48 6 .56 7467 .9 238 .31 2 .00 Expan. . 3 Post Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel . (ft/s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb/sq ft) Stream Power (lb/ft Cum Volume (acre-ft) Cum SA (acres) Elev Sta Elev 245 .22 1145.55 244 .43 238 .31 1268 .06 243 .3 247 .28 Left OB Channel Right OB 0 .085 0 .055 0 .085 89 .54 89 .69 23 .83 89 .54 89 .69 23 .83 257 .18 802 .98 52 .84 77 .16 24 .43 30 .30 2.87 8 .95 2 .22 1.16 3 .67 0 . 79 1725 .6 5387.8 354 .6 77 .36 27 .05 30 .34 1. 61 4 .60 1. 09 s) 4 . 61 41.16 2 .42 Warning: User specified water surface is not possible for the specified flow regime . The program used critical depth as the starti ng water surface. Warning: Divided flow computed for this cross-section. CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Cri t W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Profile #lOOyr Post 246 .64 0 .64 245.99 245 .99 0 .014952 1806.00 366 .08 3.80 7 .68 14769 . 4 Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow ( cfs) Top Width (ft) Avg. Vel. (ft/ s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Left OB Channel Right OB 0 .085 0 .055 0 .085 264 .66 118 .19 91 .83 264 .66 118 .19 91 . 83 653 .66 994.26 158 .09 212 .86 26 .22 126 .99 2.47 8.41 1. 72 1.24 4 . 51 0 .72 5345.6 8131 .0 1292.8 213.09 29 .09 127 .06 Exhibit E-3 20 of21 Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) 238.31 2.86 Shear (lb/sq ft) Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) 1.16 2 .86 3 . 7 9 31 . 91 0 .67 1.16 Warning: User specified water surface is not possible for the specified flow regime. The program used critical depth as the starting water surface . Exhibit E-3 21 of21 EXHIBIT "E-4" HEC-RAS OUTPUT Reach River Sta Profile Plan AC-1a 9430 10yr Pre Existing Con AC-1a 9430 10yr Post Pr. WI Det AC-1a 9430 10yr Post Pr. No Det. AC-1a 9430 100yr Pre Existing Con AC-1a 9430 100yr Post Pr. WI Det AC-1a 9430 100yr Pos1 Pr. No Det. AC-1a 9248 10yr Pre Existing Con AC-1a 9248 10yr Post Pr. WI Det AC-1a 9248 10yr Post Pr. No Det. AC-1a 9248 100yr Pre Existing Con AC-1a 9248 100yr Post Pr. WI Det AC-1a 9248 100yr Pos1 Pr. No Det. AC-1a 8982 10yr Pre Existing Con AC-1a 8982 10yr Post Pr. WI Det AC-1a 8982 10yr Post Pr. No Det. AC-1a 8982 100yr Pre Existing Con AC-1a 8982 100yr Post Pr. WI Det AC-1a 8982 100yr Post Pr. No Det. AC-1a 8674 10yr Pre Existing Con AC-1a 8674 10yr Post Pr. WI Det AC-1a 8674 10yr Post Pr. No Det. AC-1a 8674 100yr Pre Existing Con AC-1a 8674 100yr Post Pr. WI Det AC-1a 8674 100yr Post Pr. No Det. AC-2 11019 10yr Pre Existing Con AC-2 11019 10yr Post Pr. WI Det AC-2 11019 10yr Post Pr. No Det. AC-2 11019 100yr Pre Existing Con AC-2 11019 100yr Post Pr. WI Det AC-2 11019 100yr Post Pr. No Det. Q Min Total Ch El {cfs) (ft) 191 272 233 272 337 272 331 272 383 272 506 272 191 270 233 270 337 270 331 270 383 270 506 270 191 266.5 233 266.5 337 266.5 331 266.5 383 266.5 506 266.5 235 264.5 278 264.5 377 264.5 408 264.5 452 264.5 635 264.5 100 268 100 268 167 268 175 268 175 268 258 268 Exhibit E-4 HEC-RAS Output Computed FEMA Crit W.S. Elev W .S. Elev W.S. {ft) {ft) (ft) 274.85 275.06 275.49 275.49 275.5 275.59 275.5 276.08 275.5 272.22 272.17 272.39 272.33 272.78 272.74 272.72 274.4 272.72 273.08 274.4 273.26 274.4 273.26 269.74 270.01 270.57 270.72 272.4 270.56 272.4 271.47 272.4 266.85 266.96 267.13 267.04 270.4 267.04 267.96 270.4 267.66 270.4 267.66 270.02 269.97 269.97 269.97 270.42 270.41 270.45 270.45 270.45 270.45 270.91 270.91 E.G. Flow Elev E.G. Slope Vel Chnl Area (ft) (tuft) (fUs) lsa ft) 275 0.006127 3.17 63.71 275.24 0.006287 3.44 72.8 275.73 0.006621 4.02 93.76 275.72 0.006455 3.96 93.39 275.87 0.007484 4.38 98.57 276.4 0.006935 4.74 125.71 272.74 0.036075 5.8 33.32 272.98 0.034106 6.17 39.04 273.48 0.030181 6.83 53.94 273.45 0.032745 6.96 51 .53 273.7 0.021766 6.45 67.98 274.13 0.027973 7.73 76.98 269.9 0.004881 3.44 72.49 270.19 0.004864 3.68 85.67 270.78 0.004805 4.13 118.38 270.89 0.003856 3.81 128.22 270.84 0.006243 4.71 118.08 271 .68 0.003865 4.35 185.23 267.21 0.017314 4.84 50.13 267.4 0.019349 5.35 53.98 267.79 0.025406 6.54 60.38 267.89 0.03558 7.48 56.89 268.39 0.010283 5.31 93 268.74 0.030911 8.5 80.42 270.48 0.04151 5.46 18.32 270.48 0.047046 5.7 17.55 271 .07 0.037581 6.48 26.8 271 .13 0.03784 6.61 27.67 271 .13 0.037945 6.62 27.64 271 .68 0.031067 7.19 40.39 Top Width Froude {ft) #Chi 42.62 0.41 45.21 0.42 50.68 0.45 50.58 0.44 51 .85 0.48 59.31 0.48 31 .33 0.93 34.79 0.92 42.5 0.9 41 .36 0.94 48.66 0.79 52.23 0.91 47.78 0.38 52.18 0.39 64.51 0.4 67.78 0.36 64.41 0.46 84.28 0.37 35.09 0.67 35.75 0.72 36.8 0.84 36.23 0.99 41 .78 0.57 39.94 0.97 18.25 0.95 17.77 1.01 24.07 0.96 24.58 0.97 24.57 0.97 31 .2 0.92 Exhibit E-4 11115199 1of4 Reach River Sta Profile Plan AC-2 10703 10yr Pre Existing Con AC-2 10703 10yr Post Pr. W/ Det AC-2 10703 10yr Post Pr. No Det. AC-2 10703 100yr Pre Existing Con AC-2 10703 100yr Post Pr. W/ Det AC-2 10703 100yr Post Pr. No Det. AC-2 10455 10yr Pre Existing Con AC-2 10455 10yr Post Pr. W/ Det AC-2 10455 10yr Post Pr. No Det. AC-2 10455 100yr Pre Existing Con AC-2 10455 100yr Post Pr. W/ Det AC-2 10455 100yr Post Pr. No Det. AC-1b 8457 10yr Pre Existing Con AC-1b 8457 10yr Post Pr. W/ Det AC-1b 8457 10yr Post Pr. No Det. AC-1b 8457 100yr Pre Existing Con AC-1b 8457 100yr Pos1 Pr. WI Det AC-1b 8457 100yr Pos1 Pr. No Det. AC-1b 8291 10yr Pre Existing Con AC-1b 8291 10yr Post Pr. WI Det AC-1b 8291 10yr Post Pr. No Det. AC-1b 8291 100yr Pre Existing Con AC-1b 8291 100yr Post Pr. W/ Det AC-1b 8291 100yr Post Pr. No Det. AC-1b 8225 10yr Pre Existing Con AC-1b 8225 10yr Post Pr. WI Det AC-1b 8225 10yr Post Pr. No Det. AC-1b 8225 100yr Pre Existing Con AC-1b 8225 100vr Post Pr. W/ Det Q Min Total Ch El (cfs) (ft) 100 266.75 100 266.75 167 266.75 175 266.75 175 266.75 258 266.75 183 265.5 210 265.5 286 265.5 319 265.5 334 265.5 436 265.5 417 262.5 466 262.5 647 262.5 725 262.5 748 262.5 1117 262.5 417 261 466 261 647 261 725 261 748 261 1117 261 417 260 466 260.5 647 260.5 725 260 748 260.5 Exhibit E-4 HEC-RAS Output Computed FEMA Crit W.S. Elev W.S. Elev W.S. (ft) (ft) (ft) 268.49 268.53 268.81 269.04 268.93 269.23 267.04 267.19 267.5 267.03 266.92 268.21 268.12 264.59 267.21 267.51 265.22 268.6 268.2 268.6 268.08 268.6 263.46 267.19 267.48 264.16 267.5 268.18 267.5 268.03 267.5 263.07 267.18 264.09 264.97 264.97 263.79 267.0 265.43 267.0 265.43 E.G. Flow Elev E.G. Slope Vel Chnl Area (ft) (ft/ft) (ft/s) <sa ft) 268.51 0.002189 1.35 75.35 268.55 0.001927 1.3 78.52 268.86 0.002535 1.73 100.51 269.08 0.001675 1.55 119.18 268.97 0.002149 1.68 109.59 269.29 0.002515 2.04 135.16 267.14 0.014148 3.79 80.64 267.29 0.011998 3.75 93.37 267.61 0.010047 3.92 121 .95 267.36 0.043823 6.65 80.13 268.27 0.003709 2.99 192.33 268.24 0.007227 4.07 182.94 264.69 0.009637 2.58 164.59 267.21 0.000112 0.65 808.72 267.52 0.00016 0.82 898.29 265.32 0.005588 2.54 297.55 268.21 0.000116 0.78 1116.81 268.1 0.000285 1.2 1077.55 263.76 0.01181 4.59 104.32 267.2 0.000159 1.08 819.63 267.5 0.000235 1.36 921.28 264.61 0.011823 5.64 159.88 268.19 0.000177 1.27 1190.12 268.07 0.000438 1.97 1129.92 263.25 0.006034 3.4 129.2 267.19 0.000137 1.05 710.37 267.23 0.02705 12.06 53.65 264.07 0.006376 4.27 187.48 267.91 0.026159 12.65 59.12 Top Width Froude (ft) #Chi 74.27 0.23 74.99 0.21 79.82 0.25 83.7 0.21 81 .73 0.24 86.89 0.26 84.71 0.59 87.38 0.55 93.08 0.52 84.6 1.03 107.98 0.34 105.47 0.47 181.47 0.46 292 0.06 302.99 0.07 228.51 0.38 328.65 0.07 324.02 0.1 70.68 0.58 335.53 0.08 357.39 0.1 94.6 0.61 418.42 0.09 400.18 0.14 74.96 0.42 308.4 0.08 112.32 1.01 86.39 0.45 132.21 1 Exhibit E-4 11/15/99 2 of 4 a Reach River Sta Profile Plan Total (cfs) AC-1b 8225 100yr Pos1 Pr. No Det. 1117 AC-1b 8077 10yr Pre Existing Con 417 AC-1b 8077 10yr Post Pr. WI Det 466 AC-1b 8077 10yr Post Pr. No Det. 647 AC-1b 8077 100yr Pre Existing Con 725 AC-1b 8077 100yr Pos1 Pr. WI Det 748 AC-1b 8077 100yr Post Pr. No Det. 1117 AC-1b 7985 10yr Pre Existing Con 417 AC-1b 7985 10yr Post Pr. WI Det 466 AC-1b 7985 10yr Post Pr. No Det. 647 AC-1b 7985 100yr Pre Existing Con 725 AC-1b 7985 100yr Post Pr. WI Det 748 AC-1b 7985 100yr Post Pr. No Det. 1117 AC-1b 7895 10yr Pre Existing Con 417 AC-1b 7895 10yr Post Pr. WI Det 466 AC-1b 7895 10yr Post Pr. No Det. 647 AC-1b 7895 100yr Pre Existing Con 725 AC-1b 7895 100yr Post Pr. WI Det 748 AC-1b 7895 100yr Post Pr. No Det. 1117 AC-1b 7811 10yr Pre Existing Con 417 AC-1b 7811 10yr Post Pr. WI Det 466 AC-1b 7811 10yr Post Pr. No Det. 647 AC-1b 7811 100yr Pre Existing Con 725 AC-1b 7811 100yr Post Pr. WI Det 748 AC-1b 7811 100yr Post Pr. No Det. 1117 AC-1b 6900 10yr Pre Existing Con 704 AC-1b 6900 10yr Post Pr. WI Det 885 AC-1b 6900 10yr Post Pr. No Det. 1048 AC-1b 6900 100yr Pre Existing Con 1219 Min Ch El (ft) 260.5 259.5 258.31 258.31 259.5 258.31 258.31 257.3 257.3 257.3 257.3 257.3 257.3 256.42 256.42 256.42 256.42 256.42 256.42 255.6 255.6 255.6 255.6 255.6 255.6 250.75 250.75 250.75 250.75 Exhibit E-4 HEC-RAS Output Computed FEMA Crit W.S. Elev W.S. Elev W.S. (ft) (ft) (ft) 267.99 267.0 266.75 262.38 261 .93 261 .9 262.8 262.8 263.31 265.8 263.25 265.8 263.25 266.75 265.8 266.75 262.06 262.24 262.8 263.01 265.5 263.15 265.5 263.89 265.5 261 .84 261 .99 262.45 262.64 264.5 262.79 264.5 263.41 264.5 261 .5 261 .64 262.1 262.31 263.8 262.5 263.8 263.08 263.8 257.2 257.49 256.92 257.65 257.12 257.82 256.9 257.28 E.G. Flow Elev E.G. Slope Vel Chnl Area (ft) (ft/ft) (ft/s) (SQ ft) 268.04 0.000422 2.01 1008.76 262.51 0.006451 4.13 198.63 263.72 0.028278 10.72 43.48 265.04 0.026597 12 53.92 263.42 0.004251 4.1 349.66 265.72 0.025847 12.61 59.33 266.77 0.000171 1.28 1424.41 262.18 0.002543 3.06 202.01 262.36 0.002558 3.17 224.44 262.94 0.002518 3.47 310.41 263.15 0.002509 3.58 346.48 263.28 0.00228 3.48 373.41 264.04 0.002359 3.92 533.34 261 .97 0.002178 2.95 157.56 262.14 0.002356 3.15 166.71 262.67 0.003042 3.86 205.87 262.88 0.003192 4.08 229.05 263.02 0.002977 4.02 248.45 263.73 0.003699 4.88 357.3 261 .7 0.004753 4.43 172.94 261 .85 0.004911 4.6 189.11 262.33 0.005299 5.09 246.85 262.54 0.005167 5.17 276.42 262.7 0.004404 4.89 304.92 263.33 0.005271 5.73 399.18 257.4 0.005259 4.84 348.07 257.68 0.004897 4.88 444.67 257.85 0.00524 5.17 501 .24 258.02 0.00539 5.37 564.39 Top Width Froude (ft) #Chi 421.27 0.13 146.56 0.45 130.25 0.99 161 .53 1 179.45 0.38 177.54 1 425.19 0.09 123.15 0.29 134.36 0.3 170.62 0.3 183.72 0.3 192.92 0.29 240.41 0.3 60.93 0.27 62.85 0.28 108.5 0.33 128.36 0.34 142.88 0.33 206.18 0.38 111 .9 0.37 117.41 0.38 135.28 0.4 143.57 0.4 151.13 0.37 173.82 0.41 312.81 0.41 342.63 0.4 358.94 0.42 376.31 0.43 Exhibit E-4 11115199 3 of 4 Q Reach River Sta Profile Plan Total (cfs) AC-1b 6900 100yr Post Pr. W/ Det 1380 AC-1b 6900 100yr Post Pr. No Det. 1644 AC-1b 6084 10yr Pre Existing Con 704 AC-1b 6084 10yr Post Pr. W/ Det 885 AC-1b 6084 10yr Post Pr. No Det. 1048 AC-1b 6084 100yr Pre Existing Con 1219 AC-1b 6084 100yr Pos1 Pr. W/ Det 1380 AC-1b 6084 100yr Pos1 Pr. No Det. 1644 AC-1b 5660 10yr Pre Existing Con 742 AC-1b 5660 10yr Post Pr. W/ Det 944 AC-1b 5660 10yr Post Pr. No Det. 1121 AC-1b 5660 100yr Pre Existing Con 1329 AC-1b 5660 100yr Pos1 Pr. W/ Det 1524 AC-1b 5660 100yr Pos1 Pr. No Det. 1809 AC-1b 5154 10yr Pre Existing Con 752 AC-1b 5154 10yr Post Pr. W/ Det 954 AC-1b 5154 10yr Post Pr. No Det. 11 13 AC-1b 5154 100yr Pre Existing Con 1320 AC-1b 5154 100yr Pos1 Pr. W/ Det 1529 AC-1b 5154 100yr Pos1 Pr. No Det. 1806 Min Ch El (ft) 250.75 250.75 245.69 245.69 245.69 245.69 245.69 245.69 242.36 242.36 242.36 242.36 242.36 242.36 238.31 238.31 238.31 238.31 238.31 238.31 Exhibit E-4 HEC-RAS Output Computed FEMA Crit W.S. Elev W.S. Elev w.s. (ft) (ft) (ft) 257.91 256.9 257.36 258.11 256.9 257.54 250.68 250.76 250.91 251 .03 250.5 251 .2 250.5 251.39 250.5 248.69 249.03 249.19 249.42 247.4 249.49 247.4 249.69 247.4 244.5 244.23 244.58 244.58 244.87 244.87 245.09 244.5 245.09 245.73 244.5 245.73 245.99 244.5 245.99 E.G. Elev (ft) 258.13 258.34 250.93 251.05 251.16 251.27 251 .4 251 .58 248.86 249.15 249.32 249.53 249.62 249.82 245.14 245.52 245.8 246.12 246.39 246.64 Flow E.G. Slope Vel Chnl Area (ft/ft) (ftls) (sa ft) 0.006039 5.75 597.68 0.006369 6.06 675.61 0.013372 6.54 328.47 0.016202 7.3 363.55 0.014663 7.13 427.51 0.014348 7.19 480.47 0.011947 6.75 559.59 0.011361 6.78 643.28 0.005596 4.46 411 .81 0.004336 4.15 569.57 0.004381 4.28 654.72 0.004064 4.27 775.62 0.004751 4.66 813.21 0.00478 4.81 929.96 0.015825 7.18 158.86 0.023146 8.79 167.61 0.022212 8.95 203.06 0.024103 9.59 233.62 0.015263 8.21 382.79 0.014952 8.41 474.68 Top Width Froude (ft) #Chi 385.15 0.45 402.65 0.47 426.59 0.6 431 .26 0.66 439.65 0.64 446.48 0.63 456.49 0.58 466.84 0.57 447.21 0.4 494.71 0.36 518.54 0.36 550.62 0.35 560.21 0.38 589.02 0.39 105.2 0.69 110.99 0.83 131 .88 0.82 148.49 0.86 320.03 0.7 366.08 0.7 Exhibit E-4 11/15/99 4 of 4 EXHIBIT "E-5" 100 YEAR PROFILES AND CROSS-SECTION PLOTS CSBC HEC-2 Analysis 1)ExistingCon 11/11/99 2)Pr.W/Det 11/11/99 3)Pr.NoDet. 11/11/99 Exhibit E-5 2ao~-~===============================AC-1b ________________ ~--~~~~~~.=.,ll.C-1a======~ ~-----.,---.,...-------, Legend WS 1 OOyr Post -Pr. No Del. WS 100yr Post -Pr. WI Del WS 1 OOyr Pre -Existing Con Ground 270 260 g c: .Q iii > Q) jjj 250 240 230+-----------------~---------~----------------~---~ 5000 6000 7000 8000 9000 Main Channel Distance (ft) g c: 0 ~ m > Q) iii g c: 0 :; > Q) iii CSBC HEC-2 Analysis 1) Existing Con 11111/99 2) Pr. WI Del 11111199 3) Pr. No Del. 11111199 RS = 11019 Exhibit E-5 274 272 270 268-t--r--r---.~.---r--,---.----ir+-.,...-..,..--,---,.~.--~....,....-1 1000 1050 1100 1150 1200 1250 1300 1350 1400 Station (ft) WS 100yr Post -Pr. No Det. WS 1 OOyr Pre - Existing Con WS 100yr Post -Pr. WI Det Ground • Bank Sta CSBC HEC-2 Analysis 1) Existing Con 11111/99 2) Pr. WI Del 11111/99 3) Pr. No Del. 11111/99 RS= 10455 Exhibit E-5 272 271 270 269 268 267 266 265 1000 1050 1100 1150 1200 Station (ft) 1250 Legend WS 100yr Post - Pr. WI Det WS 1 OOyr Post -Pr. No Det. WS 1 OOyr Pre -Existing Con Ground • Bank Sta 2 g c: 0 :; > Q) iii CSBC HEC-2 Analysis 1) Existing Con 11111199 2) Pr. WI Del 11111199 3) Pr. No Del. 11111199 RS= 10703 Exhibit E-5 274 272 270 268 266-t--r---.----.~..-..,..---.---,.~.--~-,---.---.~..-....---.--; 1000 1050 1100 1150 1200 1250 1300 1350 1400 Station (ft) WS 1 OOyr Post -Pr. No Det. WS 1 OOyr Pre - Existing Con WS 100yr Post -Pr. WI Det Ground • Bank Sta CSBC HEC-2 Analysis 1) Existing Con 11/11/99 2) Pr. W/ Det 11111/99 3) Pr. No Det. 11111/99 RS = 9430 Exhibit E-5 278 g c 0 276 ~ > Q) [jj 274 272_,_,-.....~~~~~~~...-~~-.....~~~~~~~ ....... 1000 1050 1100 1150 1200 1250 1300 1350 Station (ft) WS 1 OOyr Post -Pr. No Det. WS 100yr Post -Pr. WI De! WS 1 OOyr Pre -Existing Con Ground • Bank Sta CSBC HEC-2 Analysis 1) Existing Con 11111/99 2) Pr. W/ Det 11111/99 3) Pr. No Det. 11111/99 274 g 272 c 0 :; i\i [jj 270 268 RS = 8982 Exhibit E-5 266-+-.....--.-.-........-.-.....~-,.-~~.....--.-.-........-.-........-.-.....~-r-.-I 1000 1050 1100 1150 Station (ft) 1200 1250 1300 WS 100yr Post -Pr. No Det. WS 1 OOyr Pre -Existing Con WS 100yr Post -Pr. W/ Det Ground • Bank Sta 3 g c 0 :;; > Q) [jj g c .Q iV > Q) [jj CSBC HEC-2 Analysis 1) Existing Con 11111/99 2) Pr. W/Det 11/11/99 3) Pr. No Det. 11/11/99 RS = 9248 Exhibit E-5 276 274 272 270-+--.--.--.-....-....-....-..-..-....... ...-...-...-..-....-.--........,---,--.--1 1000 1100 1200 Station (ft) 1300 1400 WS 1 OOyr Post -Pr. No Det. WS 100yr Post-Pr. WI Del WS 1 OOyr Pre -Existing Con Ground • Bank Sta CSBC HEC-2 Analysis 1) Existing Con 11111/99 2) Pr. WI Del 11/11/99 3) Pr. No Det. 11/11/99 RS= 8674 Exhibit E-5 270 268 266 254-1-,--,-,...-,-..,...-,..-..,.-.--,.-...--.-...-.--.-,--,-,.....,..-....-,..-..,.-.--r-.,........, 1000 1050 1100 1150 1200 1250 Station (ft) WS 1 OOyr Post -Pr. WI Del WS 1 OOyr Post -Pr. No Det. WS 1 OOyr Pre -Existing Con Ground • Bank Sta g c 0 ~ > Q) jjJ 268 266 264 CSBC HEC-2 Analysis 1) Ellisting Con 11111199 2) Pr. WI Det 11111199 3) Pr. No Det. 11111/99 RS = 8457 Exhibit E-5 WS 100yr Post -Pr. WI Del WS 1 OOyr Post -Pr. No Del. WS 1 OOyr Pre -Existing Con Ground • Bank Sta 262+-...-...-...-...-~~.--....-....-....-~~~~~~~~--1 1000 268 1100 1200 Station (ft) 1300 1400 CSBC HEC-2 Analysis 1) Ellisting Con 1111 1199 2) Pr. WI Det 11111199 3) Pr. No Det. 11111199 RS = 8225 Exhibit E-5 WS 1 OOyr Post - Pr. No Del. WS 100yr Post -Pr. W/ Del WS 1 OOyr Pre -Existing Con Ground g 266 lneff • Bank Sta c 0 ~ > Q) jjJ 264 262 260+-.--.-.-.-.....--.....-.-.-..-.-.........-.................... -.-.-.-.-.-........ ,....,.... ............................ -.--1 100 200 300 400 500 600 700 800 Station (ft) 4 g c 0 :; a; jjJ 268 266 264 262 CSBC HEC-2 Analysis 1) Ellisting Con 11111199 2) Pr. WI Det 11111199 3) Pr. No Det. 11111199 RS = 8291 Exhibit E-5 WS 100yr Post -Pr. WI Del WS 1 OOyr Post -Pr. No Det. WS 1 OOyr Pre -Existing Con Ground • Bank Sta 260_,_.~~~~~~~~~~~~~~~~~~~-- o 268 100 200 300 400 500 600 700 Station (ft) CSBC HEC-2 Analysis 1) Ellisting Con 11/11/99 2) Pr. WI Det 11111/99 3) Pr. No Det. 11/11/99 Existing Dual 5'x4' RCBC RS= 8151 Exhibit E-5 WS 1 OOyr Post -Pr. No Del. WS 100yr Post -Pr. WI Det Ground lneff • Bank Sta g 266 c 0 :; > Q) jjJ 264 262 250-1-.-.-.-.--.-.-.-.-..-.-.........-.................... -.--.-.-........ ,....,.... ............................. -.-.....--,...,....\ 100 200 300 400 500 600 700 800 Station (ft) g c: 0 ~ > Q) jjJ g c: 0 :; a; jjJ 272 270 268 266 264 262 260 258 0 268 266 264 262 260 258 CSBC HEC-2 Analysis 1) Existing Con 11/11199 2) Pr. W/ Del 11111199 3) Pr. No Del. 11111/99 Existing Dual 5'x4' RCBC RS= 8151 Exhibit E-5 200 400 Station (ft) 600 800 Legend WS 1 OOyr Post -Pr. No Det. WS 100yr Post -Pr. WI Det Ground Inell • Bank Sta CSBC HEC-2 Analysis 1) Existing Con 11/11199 2) Pr. W/ Del 11111199 3) Pr. No Del. 11111199 RS = 7985 Exhibit E-5 WS 1 OOyr Post -Pr. No Det. WS 100yr Post -Pr. WI Det WS 1 OOyr Pre -Existing Con Ground • Bank Sta 255-1-.,.--,..-,--,.--,--r-,---.--.-.,.--,.......,--,.--,--r-,---.--.-'T"--1 0 200 400 Station (ft) 600 800 5 g c: 0 ~ > Q) jjJ g c: 0 :;:::l ra > Q) jjJ CSBC HEC-2 Analysis 1) Existing Con 11111/99 2) Pr. W/ Del 11/11199 3) Pr. No Del. 11111/99 RS = 8077 Exhibit E-5 270 268 266 264 262 260 255+-....-....-..--,.......,,..--,--.__,._,..-,--.--.--.-...,._;:.::,_-.-....-..--....--l 0 200 400 Station (ft) 600 800 Legend WS 1 OOyr Post -Pr. No Det. WS 1 OOyr Pre -Existing Con WS 100yr Post -Pr. WI Det Ground Inell • Bank Sta CSBC HEC-2 Analysis 1) Existing Con 11/11/99 2) Pr. W/ Del 11/11199 3) Pr. No Del. 11111/99 RS = 7895 Exhibit E-5 270 268 266 264 262 260 258 256-t--....-,-~...-...--.--.---.~..---.--.--,-~..--..,..--.,.--,----1 0 100 200 300 400 500 600 700 800 Station (ft) Legend WS 1 OOyr Post -Pr. No Det. WS 100yr Post -Pr. WI Det WS 1 OOyr Pre -Existing Con Ground • Bank Sta g c: 0 ~ > Q) w g c: 0 ~ > Q) w CSBC HEC-2 Analysis 1) EJCisling Con 11111/99 2) Pr. WI Oet 11111199 3) Pr. No Del. 11111199 RS= 7811 Exhibit E-5 268 266 264 262 260 258 256 254+--.--.----,,..-...--.--,.---.,.~.--....--.--.---.~.--....--.-~ 1000 1050 1100 1150 1200 1250 1300 1350 1400 Station (ft) WS 1 OOyr Post -Pr. No Del. WS 100yr Post -Pr. WI Det WS 1 OOyr Pre -Existing Con Ground • Bank Sta CSBC HEC-2 Analysis 1) EJCisting Con 11111199 2) Pr. WI Oet 11111199 3) Pr. No Del. 11111/99 RS = 6084 Exhibit E-5 253 252 251 250 249 248 247 246 245 900 1000 1100 1200 1300 1400 Station (ft) 1500 Legend WS 1 OOyr Post -Pr. No Del. WS 100yrPost -Pr. WI Det WS 1 OOyr Pre -Existing Con Ground • Bank Sta 6 g c: .Q iii > Q) w g c: .Q iii ~ w CSBC HEC-2 Analysis 1) EJCisting Con 11111199 2) Pr. WI Det 11111199 3) Pr. No Del. 11111199 RS = 6900 Exhibit E-5 264 262 260 258 256 254 252 250-+--.--.--.--.--.--.....-.--.-~~--.,.--.,.--.---.---,---,,....-r--\ 700 800 900 1000 1100 1200 1300 1400 1500 1600 Station (ft) Legend WS 1 OOyr Post -Pr. No Det. WS 100yr Post -Pr. WI Del WS 1 OOyr Pre -Existing Con Ground • Bank Sta CSBC HEC-2 Analysis 1) EJCisting Con 11111199 2) Pr. WI Oet 11111/99 3) Pr. No Del. 11111/99 RS= 5660 Exhibit E-5 250 248 246 244 242_.....,.....,....,....,...,....,.....,...,....,........,-r-r-.,....,...,...........,....,....,...,....,.....,...,....,........,....,r-r-,....,.....,.......'"T'"'I 700 800 900 1000 1100 1200 1300 1400 Station (ft) WS 1 OOyr Post -Pr. No Del. WS 100yr Post -Pr. WI Det WS 1 OOyr Pre -Existing Con Ground • Bank Sta g c 0 ~ > .9! w CSBC HEC-2 Analysis 1) Existing Con 11111199 2) Pr. W/ Oet 11111/99 3) Pr. No Det. 11/11199 RS= 5154 Exhibit E-5 246 244 242 240 238 +-........... -.-.,........,_,... ........ .,........,_,... ........ .,........,-.-.....-...-.-.-....-...-.-.-....-..--1 1000 1100 1200 1300 1400 1500 Station (ft) WS 1 OOyr Post -Pr. No De!. WS 100yr Post-Pr. WI De! WS 1 OOyr Pre -Existing Con Ground • Bank Sta 7 Drajnage Report FOR THE BUSINESS CENTER AT COLLEGE STATION PHASES TWO AND THREE NTS November 1999 Prepared By: PEBBLE CREEK McClure Engineering, Inc. 1008 Woodcreek Drive, Suite 103 College Station, Texas 77845 ( 409) 693-3838 CERTIFICATION I, Steven C. Franks, Registered Professional Engineer No. 83551, State ofTexas, certify that this report for the drainage design for THE BUSINESS CENTER AT COLLEGE STATION, PHASES TWO AND THREE, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof. --_,,.,,, ~"'.~-<..~Pt.r~11~\, iJ' * .. ....lb. •• * .) ~*· J'1 •*fJ la .. : .............. ~ ..• STEVEN C. FRA7/JNS , .................•.. fj •• 83551 • I·~< <:>~ ' 1 •• 1c s~·· ··";·.~~ .. ~~ ' °SIONA\.~-,,~ STORM DRAINAGE REPORT //-/5'-91 Steven C. Franks, P.E. No. 83551 THE BUSINESS CENTER AT COLLEGE STATION, PHASES TWO AND THREE TABLE OF CONTENTS THE BUSINESS CENTER AT COLLEGE STATION PHASES TWO AND THREE INTRODUCTION GENERAL LOCATION AND DESCRIPTION PRIMARY DRAINAGE BASIN DESCRIPTION DRAINAGE DESIGN CRITERIA DRAINAGE DESIGN ANALYSIS CONCLUSION TABLE OF EXHIBITS 1 1 1 2 2 4 EXCERPT FROM FLOOD INSURANCE RATE MAP "A" DRAINAGE AREA MAP "B" RATIONAL FORMULA DRAINAGE AREA CALCULATIONS -EX. COND. "C-lA" RATIONAL FORMULA DRAINAGE AREA CALCULATIONS -PR. COND. "C-lB" INLET COMPUTATIONS "C-2" PIPE SIZE CALCULATIONS "C-3" HEC-1 ANALYSIS "D-1" DRAINAGE AREA PARAMETERS "D-2" HEC-1 DRAINAGE AREAS, HEC-RAS CROSS-SECTIONS & FLOOD PLAIN DELINEATION "D-3" HEC-RAS ANALYSIS -PROPOSED CONDITIONS "E-1" HEC-RAS ANALYSIS -EXISTING CONDITIONS (DETENTION UPSTREAM) "E-2" HEC-RAS ANALYSIS -EXISTING CONDITIONS (NO DETENTION UPSTREAM) "E-3" HEC-RAS OUTPUT "E-4" 100 YEAR PROFILES AND CROSS-SECTION PLOTS "E-5" STORM DRAJNAGE REPORT 11 THE BUSINESS CENTER AT COLLEGE STATION -PHASES TWO AND THREE STORM DRAINAGE REPORT THE BUSINESS CENTER AT COLLEGE STATION PHASES TWO AND THREE INTRODUCTION: This storm drainage report is intended to analyze the drainage infrastructure and evaluate the need for detention in the College Station Business Center Phases 2 and 3. The parameters used for design and the existing conditions of the site are incorporated to show how the final drainage design will accomplish the desired drainage objectives of the City of College Station Drainage Policy and Design Standards (DPDS.) GENERAL LOCATION AND DESCRIPTION: The College Station Business Center is located in southern College Station. The project site is bounded by State Highway 6 to the south, Phase 1 of the Business Center to the west, and Pebble Creek Subdivision to the north. Phase 2 includes the construction of Gateway Drive and the extension of Lakeway Drive. Phase 3 will extend Lakeway Drive to the eastern property line and include Technology Way which will loop through the property connecting with Lakeway Drive. These street alignments represent the maximum development that is planned for the Business Center. It is possible that the street alignments or lengths may change slightly when the projects are designed. The assumption of the maximum design will be used to evaluate the greatest impact the development can have on Tributary AC-1. Exhibits "B" and "D-3" show the proposed street layout for the Business Center. PRIMARY DRAINAGE BASIN DESCRIPTION: The site drains into Tributary AC-1 of Alum Creek which bisects the Business Center STORM DRAINAGE REPORT PAGE 1 THE BUSINESS CENTER AT COLLEGE STATION -PHASES TWO AND THREE property. A portion of the site is within the 100 year flood plain according to the Federal Emergency Management Agency Flood Insurance Rate Maps for Brazos County, Texas and Incorporated Areas effective July 2, 1992 (see Exhibit "A"). Tributary AC-1 of Alum Creek is zoned AE which means that base flood elevation have been determined. Storm water detention will not be required as long the existing conditions flood plain is not increased by more than one foot. DRAINAGE DESIGN CRITERIA: All drainage design is in accordance with the City DPDS. Flow calculations for all drainage areas are based on the Rational Method. Pipe sizing is in accordance with Manning's Equation with an "n" of .014 per the DPDS. The storm drain system will be designed for the inlets to capture the pre-development 10 year event. The storm drain piping will be designed to convey the post-development 100 year event. This design will require each developed lot to convey all water from impervious areas to the storm drain system where it will be discharged into Tributary AC-1 of Alum Creek. No on site detention will be required for the lots in the Business Center. Since Tributary AC-1 is a secondary drainage system, its crossing at Lakeway D~l be designed for the 10 year event. ~ DRAINAGE DESIGN ANALYSIS: Exhibits "C-1 ", "C-2", and "C-3" indicate the peak runoff calculations and inlet/pipe sizing computations for the storm drain system shown in Exhibit "B". Exhibit "D" is an analysis of the entire drainage shed used to compute the flows through the STORM DRAlNAGE REPORT PAGE2 THE BUSINESS CENTER AT COLLEGE STATION -PHASES TWO AND THREE Business Center including the Lakeway Drive crossing. This analysis was completed with HEC -1 and used curve number loss rates, an SCS Type II storm, and the SCS lag equation to compute the ordinates in keeping with the DPDS. Exhibit "D-1" is the HEC-1 analysis which includes three plans and six ratios (100, 50, 25, 10, 5, 2). The plans are as follows: Plan 1: Plan 2: Plan 3: Existing Conditions (All areas considered to be fields or woods) Proposed Conditions with Upstream Detention (All drainage areas are assumed to be developed based on the 1997 Development Guide with the Retail Office portion of Drainage Area 1 and all of Drainage Area 3 providing detention.) Proposed Conditions without Upstream Detention (All drainage areas are assumed to be developed based on the 1997 Development Guide with Drainage Area 1 and 3 not providing detention.) Exhibit "D-2" shows the drainage area parameters and Exhibit "D-3" is the drainage area map used for the HEC-1 analysis. Exhibit "E" is a standard step analysis of the creek channel using HEC-RAS and the flows~ generated from the HEC-1 study. The original geometric data for the FEMA report could not be -{ obtained. Calculated flows and flood plain elevations vary significantly from the FEMA report. Without the original FEMA data it is difficult to determine why there are differences between the studies. For this reason, no attempted was made to duplicate FEMA' s flows or elevations. Critical depth at the downstream section was computed and used as the start point. Exhibit "E-1 ", "E-2" and "E-3" are the detailed input data and analysis for Plans 1, 2 and 3 respectively. Exhibit "E-4" is a tabulated HEC-RAS output. This exhibit also shows the FEMA water surface elevations at the cross sections for comparison to the HEC-RAS study. Exhibit "E-5" shows the 100 year profile and cross section plots for all plans. This report utilized Plan 1 and Plan 3 to evaluate the effects of development on the flood STORM DRAINAGE REPORT PAGE3 THE BUSINESS CENTER AT COLLEGE STATION -PHASES TWO AND THREE plain. Plan 3 was chosen at the request of the City and represents the most conservative approach. Exhibit "E-4" is a comparison of Plan 3 to Plan 1 which shows that the 100 year flood plain increases an average of 0.56'. This increase is less than the one foot that is allowed. Comparison of Plan 1 with the FEMA elevations shows that FEMA' s study produced higher flood plain elevations at the upper reaches of AC-1 and lower flood plain elevations at the lower reaches of AC-1 . Exhibit "D-3" delineates the 100 year flood plain for Plan 3. The 100 year flood plain based on Plan 3 should be utilized to identify the maximum limits of development of the Business Center. We feel that this study is more accurate than FEMA' s. Our analysis shows higher flood plain elevations at the lower reaches of AC-1 where land is still available for future development. Use of the Plan 3 flood plain is the most conservative approach. Additionally, if we use the profile shown on the FEMA FIRM, it will be physically impossible to meet the DPDS requirements for freeboard on the roadway. The culvert design requires one foot of freeboard measured from the water surface to the top of curb. Dual 5'x4' box culverts were chosen based on meeting the design requirements. The 10 year flood plain elevation at the dual 5'x4' box culvert is 264.97'. The low point top of curb elevations is 266.54' which provides 1.57' of freeboard. The 100 year flood plain elevation at the box culvert is 267.99. The flow depth over the culvert for the 100 year event is 1.45' with a velocity of2.52 ft/s. CONCLUSION: The storm drain system has been designed to allow proposed developments to convey the 100 year event storm water from impervious areas directly into Tributary AC-1 . The HEC-RAS analysis establishes that ultimate development of the Business Center will not increase the 100 year flood plain more than the one foot limit allowed by FEMA. Additionally, the HEC-RAS analysis shows that a STORM DRAINAGE REPORT PAGE 4 THE BUSINESS CENTER AT COLLEGE STATION -PHASES TWO AND THREE dual 5'x4' box culvert at Lakeway Drive adequately conveys the 10 year and 100 year storm. The drainage design for this site meets the requirements stated in the City of College Station Drainage Policy and Design Standards. STORM DRAINAGE REPORT PAGES THE BUSINESS CENTER AT COLLEGE STATION -PHASES TWO AND THREE EXHIBIT "A" EXCERPT FROM FLOOD INSURANCE RATE MAP -tOll.7..J zoNE x \ City Station f College 0 480083 ( I zoNE x EXH\B\1 A Excerpt Rote Mop Once 1exas d \nsur nty. floo zos cou d Areas Bro orate d \ncorp an 1c02o5C Map 4804 Numbers: 1992 July 2. . oote: Effective EXHIBIT "C-lA" RATIONAL FORMULA DRAINAGE AREA CALCULATIONS EXISTING CONDITIONS EXHIBIT "C-2" INLET COMPUTATIONS ~ . ~o <z ~~ Al A2 A3 A4 A5 A6A A6B Bl A BIB Dl D2 D3 D4 D5 E2 E3 E4 E5 E6A E6B E7 E8 E9 = ~ "" < ~ ~ = 1:)1) = ~ "" ·-~ = > "" o~ A5 A3 A4 A6B A6B NIA NIA NIA NIA 02 E2 05 NIA NIA E3 E4 E6 E6 NA NA El 1 ElO NA 0 = ~ "" = ~ 1:)1) = = ·-= "" ~ cfs 6.5 5.8 5.8 5.5 4.6 2.4 5.9 2.4 3.6 6.7 7.0 5.1 5.6 4.0 9.0 7.3 8.0 7.6 7.3 7.2 3.7 2.1 0.0 "" ~ 0 t' "" = u 0 0.0 0.0 0.0 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.6 0.0 0.0 0.0 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 .... ~ = ~ .... = 0 -= .... = E--6.5 5.8 5.8 5.5 4.9 2.4 5.9 2.4 3.6 6.7 7.5 5.1 5.6 4.0 10.4 7.3 8.0 7.6 7.3 7.2 3.7 2.1 0.0 .c .... "O ·-~ .... ~ ~ "" .... 00 82 82 82 82 82 56 56 56 56 56 56 56 47 47 56 56 56 56 56 56 56 47 47 ~ f: .... 00 -"O ,o ~ =" i..-·s ~ C" c. ~ = ~ r;3 1.1% 0.9% 0.9% 0.8% 0.7% 0.1% 0.3% 0.1% 0.1% 0.4% 0.5% 0.2% 0.3% 0.2% 1.0% 0.5% 0.6% 0.6% 0.5% 0.5% 0.1% 0.0% 0.0% EXHIBIT C-2 INLET COMPUTATIONS College Station Business Center 0 z .... ~ = ~ .... ~ = ~ .... = 0 -; .... = E--Al I 6.5 A2 I 5.8 A3 I 5.8 A4 I 5.5 A5 I 4.9 NIA A6 I 8.3 NIA Bl I 6.0 D1 I 6.7 D2 I 7.5 D3 I 5.1 D4 I 5.6 D5 I 4.0 E2 110.4 E3 I 7.3 E4 I 8.0 E5 I 7.6 NIA E6 I 14.5 E7 I 3.7 E8 I 2.1 E9 I 0.0 DESCRIPTION Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Junction Box ~ ~ "" ~ ~ ~ -0 l ~ as "O ·~ ~ ~ Curb Inlet cfs I ft I ft 0.62110.451 10 0.62 I 9.33 I 10 0.621 9.37 I 10 2.33 I 2.34 I 5 0.621 7.91 I 10 2.33 I 3.55 I 5 2.33 I 2.58 I 5 0.62110.921 10 0.62112.181 10 0.621 8.23 I 10 2.33 I 2.38 I 5 2.331 1.71 I 5 2.33 I 4.44 5 2.33 I 3.12 5 2.33 I 3.42 5 0.62112.371 10 2.33 I 6.21 I 10 2.33 I 1.59 I 5 0.621 3.41 I 5 "" .c . ~ .... ~ > c. . 0 ~ 00 t' ~ t "" as ~ = "O • u = ~ 0 :. u "O ~ "" ·s C" ~ ~ "" < Grate Inlet "O ~ "O ·~ "" ~ ~ "" < ft I cfs I sq-ft I sq-ft 0.3 0 0 0 0 0 0 0 0 0.6 1.3 0 0 0 0 0 0 1.5 0 0 0 0 0 11/15/99 CSBS-IN.xls Exhibit C-2 .c .... "O ·-~ cfs ElO El2 7.3 0.0 7.3 47 0.6% Ell El5 2.7 0.0 2.7 47 0.1% El2 EI3 6.6 1.1 7.7 47 0.6% El3 EI4 9.6 1.5 I 1.1 47 1.3% El4 GlB 10.7 1.9 I2.6 47 1.6% El5 G2B 3.0 0.0 3.0 47 O.I% Fl G2A 4.0 0.0 4.0 47 0.2% F2 GlA 6.9 0.0 6.9 47 0.5% F3 GlB 8.9 0.0 8.9 47 0.8% GIA NA 5.5 0.7 6.1 47 0.4% GlB NA 7.9 3.3 I 1.2 47 1.3% G2A NA 3.6 0.9 4.5 47 0.2% G2B NA 2.0 0.0 2.0 47 0.0% EXHIBIT C-2 INLET COMPUTATIONS College Station Business Center DESCRIPTION ElO 7.3 Recessed Inlet on Grade Ell 2.7 Recessed Inlet on Grade EI2 7.7 Recessed Inlet on Grade EI3 11.1 Recessed Inlet on Grade E14 I2.6 Recessed Inlet on Grade El5 3.0 Recessed Inlet on Grade Fl 4.0 Recessed Inlet on Grade F2 6.9 Recessed Inlet on Grade F3 8.9 Recessed Low Point Inlet NIA GI 17.3 Recessed Low Point Inlet NIA G2 6.5 Recessed Low Point Inlet Curb Inlet cfs ft ft 0.62 11.81 IO 0.62 4.44 5 0.62 12.47 10 0.62 18.01 15 0.62 20.33 15 0.62 4.80 5 0.62 6.49 5 0.62 I 1.11 IO 2.33 3.8I 5 2.33 7.42 IO 2.33 2.79 5 1.1 0 1.5 1.9 3.3 0 0.9 0.7 0 0 0 0 0 Grate Inlet ft cfs sq-ft sq-ft 11/15/99 CSBS-IN.xls Exhibit C-2 EXHIBIT "C-3" PIPE SIZE CALCULATIONS 0 < ~ u z ~ ~ ~ ~ ~ < ~ ~ ~ 0 0 ~ ~ ~ ~ ~ # # Ac. min A1 A2 1.0 6.S A2 A3 1.8 6.7 A3 A4 3.1 11 .0 A4 AS 4.S 1S.S AS A6B S.1 1S.7 A6B OL 6.4 1S.8 B1A B1B 0.3 S.O B1B OL 0.7 S.O 01 02 1.8 16.3 02 E2 4.3 17.4 03 02 0.6 S.O 04 OS 0.8 6.9 OS HW 1.3 7.3 E2 E3 7.1 19.8 E3 E4 9.3 20.0 E4 E6B 11.4 20.2 ES E6B 1.9 13.2 E6A E6B 2.1 16.7 E6B E7 17.2 20.4 E7 E9 17.6 20.S E8 E9 0.3 S.O E9 E10 17.9 20.S E10 E12 19.7 20.8 E11 E12 0.3 S.O E12 E13 21 .8 21 .1 E13 E14 23.9 21.4 E14 E1S 26.4 21 .S E1S HW4 26.7 21 .7 F1 F2 0.4 S.O F2 F3 1.4 S.2 F3 G1B 3.0 6.8 G1A G1B 1.2 10.1 G1B G2B S.8 10.1 G2A G2B 0.4 S.O G2B HWS 6.4 10.2 EXHIBIT C-3 PIPE SIZE CALCULATIONS College Station Business Center = .~ = 1C I'll ~ I:)() 1C e ~ ·;;; ~ ~ Q. Q. -~ I'll ... = "O ~ ~ ~ = ~ 00 --"O Q. -00 I'll ~ ~ ~ = = = ..... --~ = I'll 1C ... I:)() "O :t; .:, :t; = :t; -~ ... ~ I'll = = "O = ~ = ... ~ ~ = ---~ ~~ <~ z ~ ~ 00 yr cfs cfs # cfs O/o " 10 10.3 12.8 1 12.8 1.72 18 10 18.1 22.6 1 22.6 2.34 21 10 2S.S 2S.S 1 2S.S 0.78 27 100 46.8 46.8 1 46.8 0.90 33 100 S3.0 S3.0 1 S3.0 1.16 33 100 6S.7 6S.7 1 6S.7 1.78 33 100 4.6 S.7 1 S.7 1.93 13 100 11.6 11 .6 1 11 .6 0.02 42 100 18.2 22.8 1 22.8 1.17 24 100 42.3 42.3 1 42.3 1.22 30 100 9.1 11 .3 1 11 .3 0.29 24 100 11.4 14.2 2 7.1 0.11 24 100 18.3 18.3 1 18.3 0.23 30 100 6S.2 6S.2 1 6S.2 1.7S 33 100 84.8 84.8 1 84.8 0.82 42 100 103.S 103.S 1 103.S 0.60 48 100 21 .1 26.4 1 26.4 1.S6 24 100 20.8 26.0 1 26.0 40.09 13 100 1SS.4 1SS.4 1 1SS.4 1.3S 48 100 1S8.8 1S8.8 1 1S8.8 1.41 48 100 4.4 S.S 1 S.S 0.82 1S 100 161.1 161.1 1 161 .1 0.77 54 100 176.2 176.2 1 176.2 0.93 S4 100 4.8 6.0 1 6.0 0.98 1S 100 193.3 193.3 1 193.3 1.11 54 100 210.S 210.S 1 210.S 1.04 Box 100 231.7 231 .7 1 231 .7 0.67 Box 100 233.9 233.9 1 233.9 0.68 Box 100 6.8 8.S 1 8.S 0.76 18 100 21 .7 27.1 1 27.1 3.37 21 100 43.2 43.2 1 43.2 1.28 30 100 14.6 18.3 1 18.3 19.77 13 100 71 .7 71.7 1 71 .7 2.12 33 100 6.2 7.7 1 7.7 3.S1 13 100 79.1 79.1 1 79.1 2.S8 33 *Includes 25% Flow Increase for pipe sizes <27" dia. ** See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) = ~ ~ ~ z ~ ~ ~ fps ' 7.3 8S 9.4 1SS 6.4 1SS 7.9 86 8.9 90 11.1 s 6.2 13 1.2 10 7.2 226 8.6 1S9 3.6 S7 2.3 so 3.7 229 11 .0 96 8.8 11S 8.2 103 8.4 131 28.2 13 12.4 S9 12.6 4S 4.4 S3 10.1 192 11 .1 192 4.9 so 12.1 192 13.2 116 11 .6 107 11.7 62 4.8 so 11 .3 329 8.8 170 19.8 13 12.1 so 8.3 13 13.3 31 ~ e ... "O ~ ~ = ~ ~ ~ ~ > @ 8 = b3 -~ ~ ~ ~ min min ' ' 0.20 6.70 0.28 6.97 0.40 11 .41 0.18 1S.66 0.17 1S.83 0.01 1S.84 0.04 S.04 0.14 S.17 O.S2 16.80 0.31 17.66 0.26 S.26 0.37 7.30 1.03 8.33 0.1S 19.96 0.22 20.18 0.21 20.39 0.26 13.47 0.01 16.7S 0.08 20.47 0.06 20.S3 0.20 S.20 0.32 20.84 0.29 21.13 0.17 S.17 0.26 21.39 0.1S 21 .54 4 4 0.1S 21.70 s 4 0.09 21.78 s 4 0.17 S.17 0.49 S.66 0.32 7.10 0.01 10.12 0.07 10.19 0.03 S.03 0.04 10.22 11/1S/99 CS BS-SO.xis Exhibit C-3 EXHIBIT "D-1" HEC-1 ANALYSIS 0 FLOOD HYDROGRAPH PACKAGE (HEC-1) HAY 1991 VERSION 4. 0. lE Lahey F77L-EM/32 version 5.01 Dcx:lson & Associates, Inc. RUN DATE 11/11/99 TIME 10:58 :57 x x x EXHIBIT D-1 HEC-1 ANALYSIS x xxxxxxx xxxxx x x x x x x x xxxxxxx XXJ[J( x xxxxx x x x x x x x x x x x xxxxxxx xxxxx x xx x x x x xxx U.S. ARMY CORPS OF ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET DAVIS, CALIFORNIA 95616 (916) 551-1748 THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HECl (JAN 73), HEClGS, HEClDB, AND HEClKW. THE DEFINITIONS OF VARIABLES -RTIMP-AND -RTIOR-HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AMSKK-ON RM-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS : DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS :WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM HEC-1 INPUT PAGE LINE ID ....... L ....•. 2 ....... 3 ....•.. 4. ...... 5 ....... 6 ....... 7 .•..... 8 ....... 9 ...... 10 ID ALUM AND AC-1 CREEKS IT 10 01FEB98 0000 144 IO 5 0 0 JP 3 JR PREC 11 9. 8 8. 8 7.4 6.2 4.5 KI< DA 1 7 KM Pl IS EXISTING CONDITIONS 8 KM P2 IS PROPOSED CONDITIONS WITH UPSTREAM DETENTION 9 KM P3 IS PROPOSED CONDTIONS WITHOUT UPSTREAM DETENTION 10 BA .1173 11 PB 1 12 IN 30 01FEB98 0000 13 PC . 0053 .0108 . 0164 .0223 • 0284 .0347 . 0414 . 04 83 . 0555 . 0632 14 PC .0712 .0797 .0887 . 0984 .1089 .1203 .1328 .1467 .1625 .1808 15 PC .2042 .2351 . 2833 .6632 .7351 . 7724 . 7989 . 8197 .8380 .8538 16 PC .8676 .8801 . 8914 .9019 . 9115 .9206 .9291 .9371 .9446 .9519 17 PC .9588 .9653 . 9717 .9777 .9836 .9892 .9947 1. 000 18 LS 0 75 0 19 UD . 4 8 20 KP 2 21 LS 0 79.2 13.16 22 UD . 42 23 KP 24 LS 91.6 68. 7 25 UD .27 26 KI< A -c Route from Venture Dr to Sta 84+57 27 RS l STOR -1 28 SQ 0 400 550 700 850 1000 1150 1300 1450 1600 29 SV 2.28 3.07 3 .84 4 .67 5. 38 6.14 6.88 7.62 8.33 30 KP 31 RS STOR -1 32 SQ 400 550 700 850 1000 1150 1300 1450 1600 33 sv 5.06 5.45 7 .22 9.32 8. 4 9. 03 9.66 10.33 10.99 34 KP 35 RS STOR -1 36 SQ 400 550 700 850 1000 1150 1300 1450 1600 37 sv 5.06 5. 45 7.22 9.32 8. 4 9. 03 9.66 10.33 10. 99 38 KI< DA 39 BA .0302 40 LS 0 75 41 UD .51 42 KP 2 43 LS 0 83 34 44 UD • 4 Exhibit D-1 1 of9 45 KP 46 LS 0 83 34 47 UD . 4 HEC-1 INPUT PAGE LINE ID ....... 1. ...... 2 ....... 3 ....... 4 ....... 5 ....••. 6 ....... 7 .•.•... 8 ....... 9 ...... 10 48 KK 86+74 49 HC 2 50 KK DA 3 51 BA .0693 52 LS 0 75 53 UD .58 54 KP 3 55 LS 0 87 38 56 UD . 4 57 KK B -C Route From Hwy 6 to Sta. 84+57 58 RS 1 STOR -1 59 SQ 0 400 550 700 850 1000 1150 1300 1450 1600 60 SV 0 2.17 2.78 3.39 4 4.61 5.21 5.81 6.38 6.86 61 KP 2 62 RS 1 STOR -1 63 SQ 0 4 00 550 700 850 1000 1150 1300 1450 1600 64 SV 0 4.52 4. 81 6. 31 8.18 7.22 7. 71 8.20 8. 71 9.15 65 KP 3 66 RS 1 STOR -1 67 SQ 0 400 550 700 850 1000 1150 1300 1450 1600 68 sv 0 4.52 4. 81 6. 31 8.18 7.22 7. 71 8.20 8. 71 9.15 69 KK DA 4 70 BA .0534 71 LS 0 75 72 UD . 43 73 KP 2 74 LS 0 89.2 60. 2 75 UD .27 76 KP 3 77 LS 0 89. 2 60. 2 78 UD .27 79 KK 104 +55 80 HC 2 81 KK Pt. C 82 HC 2 83 KK C - D Route from Sta. 84+57 to 82+25 84 RS 1 STOR -1 85 SQ 0 4 00 550 700 850 1000 1150 1300 1450 1600 86 sv 0 . 4 .54 .67 .8 .93 1. 07 1. 21 1.35 1. 49 87 KP 2 88 RS 1 STOR -1 89 SQ 0 400 550 700 850 1000 1150 1300 1450 1600 90 sv 0 2.47 2. 38 3.07 4.28 3. 64 3.73 3. 84 3.98 4.13 91 KP 3 92 RS 1 STOR -1 93 SQ 0 4 00 550 700 850 1000 1150 1300 1450 1600 94 sv 0 2.47 2. 38 3.07 4.28 3. 64 3.73 3. 84 3.98 4 .13 HEC-1 INPUT PAGE LINE ID ..•.... 1. ...... 2 ....... 3 ....... 4 ....... 5 ....... 6 ....... 7 ....... 8 .•..... 9 ...... 10 95 KK D-G2 Route from Sta 82+25 to Sta 69+00 96 RS 1 STOR -1 97 SQ 0 4 00 550 700 850 1000 1150 1300 14 50 1600 98 sv 0 4.54 6.25 7.88 9.41 10.82 12.18 13.48 14. 75 15.98 99 KK DA 5 100 BA .0359 101 LS 0 75 102 UD .37 103 KP 2 104 LS 0 89. 2 60. 4 105 UD .23 106 KP 3 107 LS 0 89.2 60. 4 108 UD .23 109 KK DA 6 110 BA .038 111 LS 0 75 112 UD .53 113 KP 2 114 LS 0 78.8 16.2 115 UD . 48 116 KP 3 117 LS 0 78.8 16.2 118 UD .48 119 KK PT. Gl 120 HC 3 Exhibit D-1 2 of9 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 LINE 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 LINE 190 191 192 193 194 KK DA 7 BA . 0556 LS 0 75 UD .57 KP 2 LS 0 87 38 UD .39 KP 3 LS 0 87 38 UD .39 KK E -F RK 1650 . 0145 . 024 TRAP KK DA 8 BA .0279 LS 0 75 UD .51 KP 2 LS 0 87 38 UD . 34 KP 3 LS 0 87 38 UD . 34 HEC-1 INPUT ID ....... 1. ...... 2 ....... 3 ....... 4. ...... 5 ....... 6 ....... 7 ....... 8 •.....• 9 ...... 10 KK PT. F HC 2 KK F -G RK 800 .015 . 024 TRAP KK DA 9 BA .0615 LS 0 75 UD .61 KP 2 LS 0 85. 4 43. 9 UD .44 KP 3 LS 0 85. 4 43. 9 UD . 44 KK PT. G2 HC 3 KK G2-Hl Route from 69+00 to 56+60 RS STOR -1 SQ 400 550 700 850 1000 1150 1300 1450 2000 SV 4. 93 6. 78 8. 42 9. 91 11. 3 12. 63 13.89 15. 09 19.21 KK DA 10 BA .0116 LS 0 75 UD .36 KP 2 LS 0 86. 4 48. 5 UD .25 KP 3 LS 0 86. 4 48 . 5 UD .25 KK DA 11 BA . 024 7 LS 0 75 UD . 54 KP 2 LS 0 80.3 17. 2 UD .46 KP 3 LS 0 80.3 17 .2 UD . 46 KK DA 12 LS 0 75 UD . 62 KP 2 LS 0 92 72 UD . 34 KP 3 HEC-1 INPUT ID ....... 1. ...... 2 ....... 3 ....... 4. ...... 5 ....... 6 ....... 7 ....... 8 ....... 9 ...... 10 LS UD 0 • 34 KK PT. H2 HC 4 KK Hl-I 92 72 Route from 56+60 to 51+54 PAGE PAGE Exhibit 0-1 3 of9 195 RS STOR -1 196 SQ 4 00 550 197 SV 1.14 l. 78 198 KK DA 13 199 BA • 0092 200 LS 0 75 201 UD .27 202 KK PT. 203 HC 204 zz l" •••••••••••••••••••••••••••••••••••••••• FLOOD HYDROGRAPH PACKAGE (HEC-1 l MAY 1991 VERSION 4.0.lE Lahey F77L-EM/ 32 ver~ion 5. 01 Dcxison & Associates, Inc. RUN DATE 11/11/99 TIHE 10:58:57 AWM AND AC-1 CREEKS 3 IO OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IP LOT PLOT CONTROL 700 2.38 QSCAL 0 . HYDROGRAPH PLOT SCALE IT HYDROGRAPH TIHE DATA 850 1000 3 .11 3. 65 NIHN 10 HINUTES IN COMPUTATION INTERVAL JP JR IDATE 1FEB98 STARTING DATE ITIHE 0000 STARTING TIHE NQ 144 NUHBER OF HYDROGRAPH ORDINATES NDDATE 1FEB98 ENDING DATE NDTIHE 2350 ENDING TIHE I CENT 19 CENTURY MARK COMPUTATION INTERVAL 0 . 17 HOURS TOTAL TIHE BASE 23. 83 HOURS ENGLISH UNITS DRAINAGE AREA SQUARE HILES PRECIPITATION DEPTH INCHES LENGTH, ELEVATION FEET FLOW QJBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT HULTI-PLAN OPTION NP LAN NUHBER OF PLANS HULTI-RATIO OPTION RATIOS OF PRECIPITATION 11.00 9.80 6.80 7.40 6.20 4. 50 1150 1300 4.3 4. 81 1450 2000 5.3 6. 94 U.S . ARKY CORPS OF ENGINEERS HYDROLOGI C ENGINEERING CENTER 609 SECOND STREET DAVIS, CALIFORNIA 95616 (916) 551-1748 PEAK FLOW AND STAGE (END-OF-PERIOD) SUMMARY FOR MULTIPLE PLAN-RATIO ECONOMIC COMPUTATIONS FLOWS IN QJBIC FEET PER SECOND, AREA IN SQUARE HI LES TIME TO PEAK IN HOURS RATIOS APPLIED TO PRECIPITATION OP ERATION STATION AREA PLAN RATIO 1 RATIO 2 RATIO 3 RATIO 4 RATIO 5 RATIO 6 11. 00 9.80 8.80 7.40 6. 20 4. 50 HYDROGRAPH AT DA 1 0.12 FLOW 331. 284. 245. 191. 146. 65. TIHE 11. 83 11. 83 11.83 11. 83 11.83 11. 83 FLOW 383. 333. 291. 233. 163 . 115. TIME 11. 67 11. 67 11. 67 11. 67 11. 67 11 .67 FLOW 506. 450. 403. 337. 261. 201. TIHE 11.50 11. 50 11. 50 11. 50 11.50 11. 50 ROUTED TO A -C 0 .12 FLOW 325. 276 . 240. 167. 142. 82. TIHE 11. 63 11. 63 11. 63 11. 63 11. 63 11. 63 FLOW 352. 306. 266. 214. 169. 106. TIHE 11 .63 11. 63 11.63 11. 63 11. 63 11. 63 FLOW 526. 421. 367. 308. 256. 163. TIME 11.67 ll. 67 11. 67 11. 67 11.67 11.67 HYDROGRAPH AT DA 2 o. 03 FLOW 63. 71. 62. 4 8. 37. 21. TIHE 11. 63 11.63 11. 63 11. 63 11. 83 11.63 FLOW 109. 96. 65. 69. 56. 38. TIME 11. 67 11. 67 11. 67 11. 67 11. 67 11. 67 FLOW 109. 96. 65. 69. 56. 38. TIME 11. 67 11. 67 11. 67 11. 67 11 . 67 11. 67 Exhibit 0 -1 4 of9 2 COMBINED AT 86+74 0.15 2 HYDROGRAPH AT DA 3 0.07 2 ROUTED TO B -C 0. 07 2 HYDROGRAPH AT + DA 4 0. 05 2 2 COMBINED AT 104+55 0.12 2 2 COMBINED AT Pt. C 0.27 ROUTED TO C - D 0.27 ROUTED TO D-G2 0. 27 2 HYDROGRAPH AT + DA 5 0. 04 2 3 HYOROGRAPH AT + DA 6 0. 04 3 COMBINED AT PT. Gl 0.34 2 HYDROGRAPH AT DA 7 0. 06 FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME 408. 11. 83 452. 11. 83 635. 11. 67 175. 11. 83 175. 12 . 00 258. 11. 67 174. 12.00 167. 12.00 238. 11. 83 156. 11. 67 228. 11. 50 228. 11.50 319. 11. 83 334. 11. 67 436. 11. 67 726. 11. 83 757. 11. 83 1071. 11. 67 725. 11. 83 748. 11. 83 1117. 11. 67 688. 12.00 723. 12.00 943. 11. 83 116. 11. 67 164. 11.50 164. 11. 50 102. 11. 83 116. 11.83 116. 11. 83 860. 12.00 887. 11. 83 1152. 11. 83 142. 11. 83 210. 11. 67 210. 11. 67 350 . 11. 83 394. 11. 83 516. 11. 67 150. 11. 83 150. 12.00 228. 11. 67 150. 12.00 143. 12. 00 210. 11. 83 134. 11.67 202. 11. 50 202. 11. 50 273. 11. 83 292. 11. 67 386. 11. 67 623. 11. 83 660. 11. 83 903. 11. 67 622. 11. 83 670. 11.83 815. 11. 83 589. 12.00 631. 12.00 793. 12.00 100. 11. 67 146. 11. 50 146. 11. 50 88. 11. 83 101. 11. 83 101. 11. 83 737. 12. 00 772. 12. 00 969. 11. 83 122. 11. 83 185. 11. 67 185. 11. 67 301. 11. 83 345. 11. 83 452. 11. 67 129. 11. 83 129. 12.00 203. 11. 67 129. 12.00 124. 12. 00 187. 11. 83 115. 11.67 181. 11. 50 181. 11 .50 235. 11. 83 258. 11. 67 345. 11.67 537 . 11. 83 579 . 11. 83 797 . 11. 67 536. 11. 83 597. 11.67 764 . 11. 83 507 . 12.00 544 . 12. 00 719. 11. 83 86. 11.67 130. 11. 50 130. 11. 50 76. 11. 83 89. 11.83 89. 11. 83 635. 12.00 706. 11 .83 881. 11. 83 105. 11. 83 165. 11. 67 165. 11. 67 235. 11. 83 278. 11. 83 377. 11.67 100. 11. 83 100. 12.00 167. 11. 67 101. 12.00 96. 12.00 155. 11. 83 90. 11. 67 151. 11. 50 151. 11. 50 183. 11. 83 210. 11. 67 286. 11. 67 418. 11. 83 466. 11. 83 663. 11. 67 417. 11. 83 466. 11. 83 64 7. 11. 83 395. 12.00 431. 11. 83 594. 11. 83 67. 11. 67 109. 11. 50 109. 11. 50 59. 11. 83 71. 11. 83 71. 11. 83 496. 12. 00 563. 11. 83 727. 11. 83 82. 11. 83 136. 11. 67 136. 11. 67 179. 11. 83 221. 11. 83 312. 11. 67 76. 12. 00 76. 12. 00 137. 11.67 77. 12.00 73. 12.00 127. 11. 83 69. 11. 83 125. 11. 50 125. 11. 50 140. 11. 83 169. 11. 67 236. 11. 67 318. 11. 83 371. 11. 83 548. 11. 67 317. 11. 83 370. 11. 83 588. 11. 67 301. 12.00 352. 12. 00 516. 11. 83 51. 11.67 90. 11. 50 90. 11. 50 45. 11. 83 56. 11. 83 56. 11. 83 379. 12.00 434. 12. 00 624. 11. 83 62. 11. 83 112. 11. 67 112. 11.67 103. 11. 83 141. 11. 82 221. 11. 67 44. 12. 00 44 . 12. 00 95 . 11. 67 45. 12. 00 42. 12.17 87. 11. 83 40. 11. 83 89. 11. 50 89. 11. 50 80. 11. 83 112. 11.67 165. 11. 67 183. 11. 83 238. 11. 83 385. 11. 67 182. 11. 83 239. 11. 83 372. 11. 83 174. 12. 00 227. 12. 00 34 3. 12.00 30. 11. 67 64 . 11. 50 64 . 11. 50 26. 11. 83 36. 11. 83 36. 11. 83 220. 12.00 283. 11. 83 414. 11. 83 36. 12. 00 77 . 11. 67 77 . 11. 67 Exhibit D-1 5 of9 ROUTED TO E - F o. 06 2 HYDROGRAPH AT + DA 8 0 .03 2 2 COMBINED AT PT. F 0.08 2 ROUTED TO F - G 0.08 2 HYDROGRAPH AT DA 9 0.06 3 COMBINED AT PT . G2 0. 49 3 ROUTED TO + G2-Hl 0. 49 HYDROGRAPH AT DA 10 0.01 2 HYDROGRAPH AT DA 11 0.02 2 HYDROGRAPH AT + DA 12 0. 02 4 COMBINED AT + PT. H2 0. 55 ROUTED TO + Hl-I 0 .55 2 FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW 139. 12.00 203. 11. 67 203. 11. 67 77. 11. 83 111. 11. 67 111. 11. 67 215 . 11. 83 315. 11.67 315. 11. 67 212 . 11.83 311. 11. 67 311. 11. 67 150. 12.00 212 . 11. 67 212 . 11. 67 1219. 12.00 1380. 11.83 1644. 11.83 1183. 12.00 1332. 11.83 1617. 11. 83 38. 11. 67 51. 11. 50 51. 11. 50 66. 11. 83 78 . 11. 83 78 . 11. 83 60 . 12.00 102. 11. 67 102. 11. 67 1329. 12. 00 1524. 11. 83 1809. 11. 83 1305. 12.00 1506. 11. 83 1783. 119. 12.00 179. 11. 67 179. 11.67 66. 11. 83 98 . 11. 67 98. 11. 67 184. 11. 83 278. 11. 67 278. 11. 67 182. 11. 83 274. 11. 67 274. 11. 67 129. 12.00 188. 11. 67 188. 11. 67 1046. 12.00 1207. 11. 83 1405. 11. 83 1005. 12.00 1161. 12.00 1362. 11. 83 33. 11.67 45. 11. 50 45. 11.50 56. 11. 83 68. 11. 83 68. 11. 83 52. 12.00 90. 11. 67 90. 11.67 1131. 12.00 1330. 11. 83 1532. 11.83 1118. 12 .17 1311. 12.00 1512. 103. 12.00 160. 11. 67 160. 11. 67 57. 11. 83 88. 11. 67 88. 11. 67 158. 11. 83 247. 11. 67 247 . 11. 67 156. 11. 83 244 . 11. 67 244. 11.67 112. 12.00 167. 11. 67 167. 11. 67 902. 12.00 1094. 11. 83 1269. 11. 83 858. 12.00 1034 . 12. 00 1215. 11. 83 28. 11. 67 40. 11. 50 40. 11. 50 49. 11.83 60. 11. 83 60. 11.83 45. 12.00 81. 11. 67 81. 11. 67 967. 12.00 1179. 11. 83 1366. 11. 83 966. 12.17 1170. 12.00 1347. 80. 12. 00 132. 11. 67 132. 11. 67 44. 11. 83 73 . 11. 67 73 . 11. 67 123 . 11. 83 204. 11.67 204. 11. 67 121. 12.00 201. 11. 67 201. 11. 67 87. 12.00 138. 11. 67 138. 11.67 704. 12.00 885. 11. 83 1048. 11. 83 668. 12.17 833. 12.00 996. 11. 83 22 . 11. 67 33 . 11. 50 33 . 11. 50 38 . 11. 83 48 . 11. 83 48 . 11. 83 35 . 12.00 68. 11. 67 68. 11. 67 742 . 12.00 944. 11. 83 1121 . 11.83 746. 12 .17 945. 12 .00 1104. 62. 12.00 108. 11. 67 108. 11. 67 34. 11. 83 60. 11. 67 60. 11. 67 93. 11. 83 167. 11. 67 167. 11. 67 93. 12.00 164. 11. 67 164. 11. 67 67. 12 .00 113. 11. 67 113. 11. 67 538. 12 .00 698. 11 . 83 888. 11. 83 508. 12.17 664. 12 . 00 820. 12. 00 17. 11. 67 27. 11. 50 27. 11. 50 29. 11. 83 38. 11. 83 38. 11. 83 27. 12.00 57. 11.67 57. 11. 67 564. 12.17 742. 11. 83 917. 11. 83 567. 12 .17 745. 12. 00 920. 36. 12. 00 74 . 11. 67 74. 11. 67 20 . 11. 83 41. 11. 67 41. 11. 67 54 . 12.00 115. 11. 67 115. 11. 67 54. 12. 00 113. 11. 67 113. 11. 67 39. 12. 00 77 . 11.67 77 . 11. 67 312. 12.00 4 66. 11. 83 596. 11. 83 296. 12.17 440. 12. 00 560. 12.00 10. 11. 67 19. 11. 50 19. 11. 50 17 . 11. 83 25 . 11. 83 25 . 11. 83 15. 12. 00 41. 11. 67 41. 11. 67 329. 12 .17 4 94 . 11. 83 613 . 12.00 330. 12 .17 4 98. 12 .00 616. Exhibit D-1 6 of9 TIME 11. B3 11. B3 12. 00 12.00 12. 00 12.00 HYDROGRAPH AT DA 13 o. 01 FLOW 32. 2B . 24. 19. 15. 9. TIME 11. 67 11. 67 11. 67 11. 67 11. 67 11.67 2 FLOW 32. 2B . 24. 19. 15. 9. TIME 11.67 11.67 11.67 11.67 11. 67 11. 67 FLOW 32. 2B . 24. 19. 15. 9. TIME 11. 67 11. 67 11. 67 11. 67 11.67 11. 67 2 COMBINED AT PT . I 0.56 FLOW 1320. 112B. 974. 752. 573. 333. TIME 12.00 12.17 12.17 12.17 12.17 12 .17 2 FLOW 1529. 1324. llBl. 954. 752. 502. TIME 11.B3 12.00 12. 00 12.00 12.00 12.00 FLOW 1B06. 1532 . 135B. 1113. 927. 620. TIME 11. B3 11. 83 12.00 12. 00 12. 00 12.00 SUMMARY OF KINEMATIC WAVE -HUSKINGUH-CUNGE ROUTING (FLOW IS DIRECT RUNOFF WITHOUT BASE FLOW) INTERPOLATED TO COMPUTATION INTERVAL ISTAQ ELEMENT DT PEAK TIME TO VOLUME DT PEAK TIME TO VOLUME PEAK PEAK (HIN) (CFS) (HIN) (IN) (HIN) (CFS) (HIN) (IN) FOR PLAN = 1 RATIO=!!. 00 E - F HANE 0. 94 142.10 711. 93 7.76 10. 00 138.80 720.00 7. 76 CONTINUITY SUMMARY (AC-FT) -INFLOW=0 .2302E+02 EXCESS=O.OOOOE+OO OUTFLOW=0 .2300E+02 BASIN STORAGE=0.2926E-01 PERCENT ERROR= 0. 0 FOR PLAN = 1 RATIO= 9 .BO E - F HANE 1. 02 121. 73 712. 06 6. 64 10. 00 119.25 720. 00 6. 64 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.1971E+02 EXCESS=O.OOOOE+OO OUTFLOW=0 .1969E+02 BASIN STORAGE=0.2683E-01 PERCENT ERROR= 0.0 FOR PLAN = 1 RATIO= 8. 80 E -F HANE 1.01 104. BB 712.10 5. 72 10 .00 103. 01 720.00 5.73 CONTINUITY SUMMARY (AC-FT) -INFLOW=0 .1699E+02 EXCESS=O .OOOOE+OO OUTFLOW-0.1697E+02 BASIN STORAGE=0 .2467E-01 PERCENT ERROR-0.0 FOR PLAN = 1 RATIO= 7. 4 0 E - F HANE 1. 20 BL 41 713 .10 4. 4 7 10 .00 80. 4 B 720. 00 4. 47 CONTINUITY SUMMARY (AC-FT) -INFLOW=O .13268+02 EXCESS=O . OOOOE+OO OUTFLOW=O .1324E+02 BASIN STORAGE=O . 2121E-01 PERCENT ERROR= 0. 0 FOR PLAN = 1 RATIO= 6. 20 E - F HANE 1.2B 61.92 712. 90 3.42 10 . 00 61. 51 720. 00 3. 42 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.1016E+02 EXCESS=O.OOOOE+OO OUTFLOW=0.1015E+02 BASIN STORAGE=0.1827E-01 PERCENT ERROR= 0.0 FOR PLAN= 1 RATIO= 4.50 E - F HANE 1.47 35.82 721. 62 2.03 10.00 35.79 720. 00 2.03 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 6030E+Ol EXCESS=O. OOOOE+OO OUTFLOW=O. 6020E+Ol BASIN STORAGE=0 .1335E-01 PERCENT ERROR= 0. 0 FOR PLAN= 2 RATIO=ll.00 E -F HANE 0.94 208. 64 702 .10 9.97 10. 00 203.34 700.00 9. 9B CONTINUITY SUMMARY (AC-FT) -INFLOW=0.295BE+02 EXCESS=O.OOOOE+OO OUTFLOW-0.2955E+02 BASIN STORAGE=0 .2761E-01 PERCENT ERROR= 0.0 FOR PLAN = 2 RATIO= 9. 80 E - F HANE 1. 02 1B4 .17 701. 79 B. 78 10. 00 179 .46 700.00 B. 79 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.2607E+02 EXCESS=O.OOOOE+OO OUTFLOW=0.2605E+02 BASIN STORAGE=0 .2495E-01 PERCENT ERROR= 0.0 FOR PLAN = 2 RATIO= 8. 80 E - F HANE 0 .96 164 .21 702.17 7.BO 10. 00 159 .56 700.00 7. 81 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.2315E+02 EXCESS=O.OOOOE+OO OUTFLOW=0.2313E+02 BASIN STORAGE=0 .2260E-01 PERCENT ERROR= 0.0 FOR PLAN = 2 RATIO= 7. 4 0 E -F HANE 1. 03 135.30 701. 65 6. 43 10. 00 131. 62 700.00 6. 43 CONTINUITY SUMMARY (AC-FT) -INFLOW=O .19078+02 EXCESS=O. OOOOE+OO OUTFLOW=O .1905E+02 BASIN STORAGE=O . 2035E-01 PERCENT ERROR= 0. 0 Exhibit D-1 7 of9 FOR PLAN = 2 RATIO= 6. 20 E - F MANE 1. 11 111. 02 702 . 64 5 .26 10.00 107. 63 700. 00 5 .26 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.1560E+02 EXCESS=O. OOOOE+OO OUTFLOW=0 .1558E+02 BASIN STORAGE=O .1814E-01 PERCENT ERROR= 0 . 0 FOR PLAN = 2 RATIO= 4. 50 E -F MANE 1.16 76. 74 702.50 3. 62 10. 00 73. 72 700. 00 3. 62 CONTINUITY SUMMARY (AC-FT) -INFLOW=0 .1074E+02 EXCESS=O .OOOOE+OO OUTFLOW=0 .1073E+02 BASIN STORAGE=0.1374E-01 PERCENT ERROR= 0.0 FOR PLAN = 3 RATIO=ll .00 E -F MANE 0. 94 208. 64 702.10 9. 97 10. 00 203.34 700.00 9.98 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 2958E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2955E+02 BASIN STORAGE-0. 2761E-01 PERCENT ERROR-0. 0 FOR PLAN = 3 RATIO= 9 . 80 E -F MANE 1. 02 184 .17 701.79 8. 78 10 .00 179. 4 6 700. 00 8.79 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 2607E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2605E+02 BASIN STORAGE=O . 2495E-01 PERCENT ERROR= 0. 0 FOR PLAN = 3 RATIO= 8 .80 E -F MANE 0 .96 164. 21 702 .17 7.80 10.00 159. 56 700.00 7.81 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 2315E+02 EXCESS=O. OOOOE+OO OUTFLOW=O . 2313E+02 BASIN STORAGE=O . 2260E-01 PERCENT ERROR= 0. 0 FOR PLAN= 3 RATIO= 7.40 E -F MANE 1. 03 135. 30 701. 65 6. 43 10 . 00 131. 62 700. 00 6. 4 3 CONTINUITY SUMMARY (AC-FT) - INFLOW=0.1907E+02 EXCESS=O.OOOOE+OO OUTFLOW=0 .1905E+02 BASIN STORAGE=0.2035E-01 PERCENT ERROR= 0.0 FOR PLAN = 3 RATIO= 6.20 E -F MANE 1.11 111. 02 702. 64 5.26 10 . 00 107. 63 700.00 5.26 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.1560E+02 EXCESS=O . OOOOE+OO OUTFLOW=O .1558E+02 BASIN STORAGE=O .1814 E-01 PERCENT ERROR= 0. 0 FOR PLAN = 3 RATIO= 4. 50 E -F MANE 1.16 76.74 702. 50 3.62 10 . 00 73 . 72 700.00 3.62 CONTINUITY SUMMARY (AC-FT) -INFLOW=O .1074E+02 EXCESS=O . OOOOE+OO OUTFLOW=0.1073E+02 BASIN STORAGE=O .1374E-01 PERCENT ERROR= 0. 0 FOR PLAN = 1 RATIO=l 1. 00 F - G MANE 0 .42 214 .73 711.17 7.76 10 .00 212.45 710. 00 7.76 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 3457E+02 EXCESS=O. OOOOE+OO OUTFLOW=O . 34 56E+02 BASIN STORAGE=O .1895E-01 PERCENT ERROR= 0. 0 FOR PLAN = 1 RATIO= 9.80 F - G MANE 0.47 183. 87 711.18 6. 64 10 .00 181.71 710. 00 6.65 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 2960E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2959E+02 BASIN STORAGE=O . l 734E-01 PERCENT ERROR= 0. 0 FOR PLAN = 1 RATIO= 8 . 80 F -G MANE 0 . 55 158.27 711.24 5. 73 10 .00 156.25 710. 00 5. 73 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 2552E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2550E+02 BASIN STORAGE=O .1587E-01 PERCENT ERROR= 0. 0 FOR PLAN= 1 RATIO= 7 .40 F - G MANE 0 .50 122.89 711.18 4. 4 7 10. 00 121.12 720. 00 4. 4 7 CONTINUITY SUMMARY (AC-FT) -INFLOW=O . l 991E+02 EXCESS=O . OOOOE+OO OUTFLOW=O .1990E+02 BASIN STORAGE=O .1370E-Ol PERCENT ERROR= 0. 0 FOR PLAN = 1 RATIO= 6 . 20 F - G MANE 0 .64 93. 20 711.40 3. 42 10. 00 92.65 720. 00 3.43 CONTINUITY SUMMARY (AC-FT) -INFLOW=O .1526E+02 EXCESS=O . OOOOE+OO OUTFLOW=0 .1525E+02 BASIN STORAGE=O .1173E-01 PERCENT ERROR= 0 . 0 FOR PLAN = 1 RATIO= 4 . 50 F - G MANE 0. 71 54 . 02 720. 24 2.03 10. 00 54. 00 720.00 2.03 Exhibit 0-1 8 of9 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.9049E+Ol EXCESS=O.OOOOE+OO OUTFLOW=0.9041E+Ol BASIN STORAGE=0 .8714E-02 PERCENT ERROR= 0.0 FOR PLAN = 2 RATIO=ll.00 F -G HANE 0. 4 8 313 . 43 701.10 9. 98 10. 00 310.65 700.00 9 .98 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.4444E+02 EXCESS=O.OOOOE+OO OUTFLOW=0.4442E+02 BASIN STORAGE=0.1747E-01 PERCENT ERROR= 0 .0 FOR PLAN = 2 RATIO= 9. 80 F -G HANE 0.46 277 .32 700 . 94 8 .79 10. 00 274. 23 700.00 8 .79 CONTINUITY SUMMARY (AC-FT) -INFLOW=O . 3916E+02 EXCESS=O. OOOOE+OO OUTFLOW=O . 3914E+02 BASIN STORAGE=O .1606E-01 PERCENT ERROR= 0. 0 FOR PLAN = 2 RATIO= B. 80 F -G MANE 0. 38 247.01 700. 71 7.80 10. 00 24 3. 80 700. 00 7 .81 CONTINUITY SUMMARY (AC-FT) -INFLOW=0 .3477E+02 EXCESS=O.OOOOE+OO OUTFLOW=0 .3475E+02 BASIN STORAGE=0.1513E-01 PERCENT ERROR= 0.0 FOR PLAN= 2 RATIO= 7.40 F -G MANE 0.42 203. 72 701. 02 6. 43 10. 00 201.12 700.00 6. 43 CONTINUITY SUMMARY (AC-FT) -INFLOW=O . 2865E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2864E+02 BASIN STORAGE=O .1308E-01 PERCENT ERROR= 0. 0 FOR PLAN = 2 RATIO= 6.20 F -G MANE 0.52 166.61 700.89 5.26 10. 00 164 . 4 8 700.00 5.26 CONTINUITY SUMMARY (AC-FT) -INFLOW=0 .2343E+02 EXCESS=O .OOOOE+OO OUTFLOW=0 .2342E+02 BASIN STORAGE=0.1166E-01 PERCENT ERROR= 0.0 FOR PLAN = 2 RATIO= 4 . 50 F -G MANE 0 .57 114.42 700.97 3.62 10 .00 112. 67 700. 00 3.62 CONTINUITY SUMMARY (AC-FT) -INFLOW=O .1613E+02 EXCESS=O . OOOOE+OO OUTFLOW=O .1612E+02 BASIN STORAGE=O. 9112E-02 PERCENT ERROR= 0. 0 FOR PLAN= 3 RATIO=ll .00 F -G MANE 0.48 313.43 701.10 9.98 10. 00 310.65 700.00 9.98 CONTINUITY SUMMARY (AC-FT) -INFLOW=0.4444E+02 EXCESS=O .OOOOE+OO OUTFLOW=0 .444 2E+02 BASIN STORAGE=0.1747E-01 PERCENT ERROR= 0.0 FOR PLAN = 3 RATIO= 9 . 80 F -G HANE 0 .46 277.32 700.94 8. 79 10. 00 274 .23 700.00 8. 79 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 3916E+02 EXCESS=O. OOOOE+OO OUTFLOW=O . 3914E+02 BASIN STORAGE=0.1606E-01 PERCENT ERROR= 0. 0 FOR PLAN = 3 RATIO= 8.80 F -G MANE 0 .38 247.01 700. 71 7.80 10. 00 24 3. 80 700.00 7.81 CONTINUITY SUMMARY (AC-FT) -INFLOW=O . 34 77E+02 EXCESS=O. OOOOE+OO OUTFLOW=O . 34 75E+02 BASIN STORAGE=O .1513E-01 PERCENT ERROR= 0. 0 FOR PLAN = 3 RATIO= 7. 4 0 F -G HANE 0 .42 203. 72 701. 02 6. 43 10. 00 201.12 700.00 6. 43 CONTINUITY SUMMARY (AC-FT) -INFLOW=O . 2865E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2864 E+02 BASIN STORAGE=O .1308E-01 PERCENT ERROR= 0. 0 FOR PLAN = 3 RATIO= 6 . 20 F -G HANE 0.52 166.61 700.89 5.26 10. 00 164 . 4 8 700.00 5.26 CONTINUITY SUMMARY (AC-FT) -INFLOW=O. 234 3E+02 EXCESS=O . OOOOE+OO OUTFLOW=O . 2312E+02 BASIN STORAGE=O .1166E-01 PERCENT ERROR= 0. 0 FOR PLAN = 3 RATIO= 4. 50 F -G MANE 0 .57 114.42 700.97 3.62 10. 00 112. 67 700. 00 3.62 CONTINUITY SUMMARY (AC-FT) -INFLOW=0 .1613E+02 EXCESS=O. OOOOE+OO OUTFLOW=O .1612E+02 BASIN STORAGE=O. 9112E-02 PERCENT ERROR= 0 . 0 + • + NORMA.L END OF HEC-1 + +" Exhibit D-1 9 of9 EXHIBIT "D-2" DRAINAGE AREA PARAMETERS General AREA AREA AREA HYD # ACRES MJLES LENG HT 1 75.05 0.1173 2000 2 19.32 0.0302 1500 3 44.33 0.0693 2350 4 34.19 0.0534 1300 5 22.95 0.0359 1300 6 24.31 0.0380 2200 7 35.57 0.0556 2000 8 17.85 0.0279 1700 9 39.38 0.0615 2400 10 7.45 0.0116 1400 11 15.79 0.0247 1900 12 24.92 0.0389 2400 13 5.90 0.0092 900 Exhibit D-2 Drainage Area Parameters Orig. Cond. Prop. Cond. WI Det. PLANl PLAN2 VERT SLOPE CURVE LAG CURVE LAG DROP FT/FT # HOURS # HOURS 36.5 0.018 75 0.48 79.2 0.42 15.15 0.010 75 0.51 83 0.40 37 0.016 75 0.58 75 0.58 14.5 0.011 75 0.43 89.2 0.27 19.25 0.015 75 0.37 89.2 0.23 37.25 0.017 75 0.53 78.8 0.48 25 0.013 75 0.57 87 0.39 21.1 0.012 75 0.51 87 0.34 35.25 0.015 75 0.61 85.4 0.44 24.75 0.018 75 0.36 86.4 0.25 25.1 0.013 75 0.54 80.3 0.46 34.5 0.014 75 0.62 92 0.34 14.17 0.016 75 0.27 75 0.27 Prop. Cond. W/O Det. PLAN3 CURVE LAG # HOURS 91.6 0.27 83 0.40 87 0.40 89.2 0.27 89.2 0.23 78.8 0.48 87 0.39 87 0.34 85.4 0.44 86.4 0.25 80.3 0.46 92 0.34 75 0.27 CURVE # LAG HOURS Exhibit D-2 Drainage Area Parameters 9708-lag-scf.xls EXHIBIT "E-1" HEC-RAS ANALYSIS PROPOSED CONDITIONS EXHIBIT E-1 HEC-RAS ANALYSIS -PROPOSED CONDITIONS x x x x x x xxxxxxx x x x x HEC-RAS September 1998 Version 2 .2 U.S. Army Corp of Engineers Hydrologic Engineering Center 609 Second Street, Suite D Davis, California 95616-4687 ( 916) 756-1104 xxxxxx xxxx xx xx xx x x x x x x x x x x x x x xxxx x xxx xx xx xxxxxx x x x x x x x x x x x x x xx xx x x xxxx x x xxxxxx xxxx x x x x xxxxx PROJECT DATA Project Title: CSBC HEC-2 Analysis Project File csbc.prj Run Date and Time: 11/11/99 11 :27 :34 AM Project in English units PLAN DATA Plan Title : Existing Conditions Plan File f :\9708\Hec-2\csbc.p03 Geometry Title: Existing Conditions Geometry File f :\9708\Hec-2\csbc.gOl Flow Title Flow File Existing Flow Data (Hec-1 Computed) f :\9708\Hec-2\csbc .f03 Plan Summary Information: Number of: Cross Sections Culverts Bridges 18 0 0 Mulitple Openings Inline Weirs Computational Information Water surface calculation tolerance Critical depth calculaton tolerance Maximum number of interations Maximum difference tolerance Flow tolerance factor Computation Options 0 .01 0 .01 20 0 .3 0 .001 Critical depth computed only where necessary 0 0 Conveyance Calculation Method : At breaks in n values only Friction Slope Method: Average Conveyance Computational Flow Regime: Subcritical Flow FLOW DATA Flow Title: Existing Flow Data (Hec-1 Computed) Flow File f :\9708\Hec-2\csbc .f03 Flow Data ( cfs) x x Exhibit E-1 1of18 River Reach RS lOyr Trib. of Alum CrAC-la 9430 Trib. of Alum CrAC-la 8674 Trib. of Alum CrAC-2 11019 Trib. of Alum CrAC-2 104 55 Trib . of Alum CrAC-lb 8457 Trib . of Alum CrAC-lb 6900 Trib . of Alum CrAC-lb 5660 Trib. of Alum CrAC-lb 5154 Boundary Conditions River Reach Profile Trib. of Alum CrAC-lb lOyr Pre 244 .5 Trib. of Alum CrAC-lb lOOyr Pre 244 .5 GEOMETRY DATA Geometry Title : Existing Conditions Geometry File : f :\9708\Hec-2\csbc.gOl Reach Connection Table River Reach Trib. of Alum Cr AC-la Trib. of Alum Cr AC-2 Trib. of Alum Cr AC -lb Upstream Boundary Junction 1 CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC-la INPUT Description: Station Elevation Data Sta Elev Sta 1000 280 1102 1174 274 1182 Manning's n Values Sta n Val Sta 1000 .085 1142 Bank Sta : Left 1142 Right 1174 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S. (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) RS : 9430 num= 10 Elev Sta Elev Sta 278 1125 276 1142 276 1216 278 1277 num= 3 n Val Sta n Val .055 1174 .085 Lengths: Left Channel Right 180 180 180 Profile #lOyr Pre 275 .00 Element 0 .15 Wt . n-Val . 274 .85 Reach Len. (ft) Flow Area (sq ft) 0.006127 Area (sq ft) 191. 00 Flow (cfs) 42 .62 Top Width (ft) 3 .00 Avg. Vel . (ft/s) 2 .85 Hydr . Depth (ft) 2440.2 Conv. (cfs) 180 .00 Wetted Per. (ft) 272 .00 Shear (lb/sq ft) Pre 191 235 100 183 417 704 742 752 lOOyr Pre 331 408 175 319 725 1219 1329 1320 Upstream Downstream Boundary Junction 1 Junction 1 Elev Sta 274 1163 278.5 1339 Coeff Contr. .1 Left OB 0 .085 180.00 3 .07 3 .07 2.36 7 .22 0.77 0. 42 30.2 7 .27 0 .16 Elev 272 27 9 Expan. .3 Channel 0 .055 180 .00 59.19 59.1 9 187.54 32 .00 3.17 1. 85 2396. 0 32.28 0.70 Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha 1.10 Stream Power (lb/ ft s) 0 .12 2.22 Frctn Loss (ft) 2 .23 Cum Volume (acre-ft) 0 .07 1. 46 Downstream Known WS Known WS Right OB 0 .085 180.00 1. 4 4 1. 44 1. 09 3 . 4 0 0 . 76 0 . 42 14 .0 3.50 0.16 0 .12 0 .13 Exhibit E-1 2 of18 C & E Loss (ft) 0 . 04 Cum SA (acres) 0 .11 0 .90 0 .17 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate t he need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 27 5 . 7 2 Element Left OB Channel Right OB Vel Head (ft) 0 .23 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 275 .49 Reach Len. (ft) 180.00 180 .00 180 .00 Crit W.S. (ft) Flow Area (sq ft) 9.39 79.58 4 .42 E.G. Slope (ft/ ft) 0.006455 Area (sq ft ) 9.39 79. 58 4 .42 Q Total (cfs) 331 .00 Flow (cfs ) 10. 78 315.23 4.99 Top Width (ft) 50 .58 Top Width (ft) 12.64 32.00 5 .95 Vel Total (ft/s) 3 .54 Avg . Vel . (ft/s) 1.15 3. 96 1 .13 Max Chl Dpth (ft) 3 . 4 9 Hydr . Depth (ft) 0.74 2. 4 9 0 .74 Conv. Total (cfs) 4119. 9 Conv. (cfs) 134 .1 3923.6 62.1 Length Wtd . (ft) 180 .00 Wetted Per . (ft) 12.72 32.28 6.13 Min Ch El (ft) 272 .00 Shear (lb/sq ft) 0 .30 0.99 0.29 Alpha 1. 19 Stream Power (lb/ ft s) 0 .34 3. 94 0.33 Frctn Loss (ft) 2 .22 Cum Volume (acre-ft) 0 .21 2 .25 0.34 c & E Loss (ft) 0 .05 Cum SA (acres) 0 .23 1. 01 0.30 Warning: The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC-la RS : 9248 INPUT Description: Station Elevation Data num= 9 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 278 1111 276 1161 274 1177 272 1188 270 1204 272 1228 274 1271 276 1391 277 Manni ng 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1177 .055 1204 .085 Bank Sta: Left Right Lengths : Left Channel Right Coe ff Contr. Expan. 1177 1204 257 260 264 .1 . 3 CROSS SECTION OUTPUT Profile #10yr Pre E.G. Elev (ft) 272 .74 Element Left OB Channel Right OB Vel Head (ft) 0 .52 Wt. n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 272 .22 Reach Len. (ft) 257 .00 260 .00 264 .00 Crit W.S . (ft) 272 .17 Flow Area (sq ft) 0 .19 32 .85 0 .28 E.G. Slope (ft/ft) 0 .036075 Area (sq ft) 0 .19 32 .85 0 .28 Q Total (cfs) 191 .00 Flow (cfs) 0 .14 190. 65 0 .21 Top Width (ft) 31 .33 Top Width (ft) 1. 73 27 .00 2 .60 Vel Total ( ft/s) 5 . 73 Avg. Vel . (ft/s) 0 .75 5 .80 0 . 75 Max Chl Dpth (ft) 2 .22 Hydr. Depth (ft) 0 .11 1. 22 0 .11 Conv . Total (cfs) 1005.6 Conv. (cfs ) 0 .7 1003 .8 1.1 Length Wtd . (ft) 260.14 Wetted Per. (ft) 1. 75 27 .30 2 .61 Min Ch El (ft) 270.00 Shear (lb/sq ft) 0 .24 2 .71 0 .24 Alpha 1.02 Stream Power (lb/ft s) 0 .18 15.72 0 .18 Frctn Loss (ft) 2 .73 Cum Volume (acre-ft) 0 .06 1. 27 0 .13 c & E Loss (ft) 0 .11 Cum SA (acres) 0 .09 0 . 78 0 .16 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less Exhibit E-1 3 of 18 than 0.7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100yr Pre E.G. Elev (ft) 273. 45 Element Left OB Channel Right OB Vel Head (ft) 0. 73 Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 272.72 Reach Len . (ft) 257 .00 260.00 264 .00 Crit W.S. (ft) 272.72 Flow Area (sq ft) 2 .06 46.38 3 .09 E.G. Slope (ft/ft) 0 .032745 Area (sq ft) 2 .06 46.38 3 .09 Q Total (cfs) 331.00 Flow (cfs) 3 .28 322 .80 4. 93 Top Width (ft) 41. 36 Top Width (ft) 5 .74 27 .00 8 .61 Vel Total (ft/s) 6 . 42 Avg. Vel . (ft/s) 1 .59 6 . 96 1. 59 Max Chl Dpth (ft) 2 .72 Hydr. Depth (ft) 0 .36 1. 72 0 .36 Conv. Total (cfs) 1829.2 Conv. (cfs) 18 .1 1783 .8 27 .2 Length Wtd . (ft) Wetted Per. (ft) 5 . 7 9 27 .30 8 .64 Min Ch El (ft) 270.00 Shear (lb/sq ft) 0 . 73 3 .47 o. 73 Alpha 1.15 Stream Power (lb/ ft s) 1.16 24 .17 1.17 Frctn Loss (ft) Cum Volume (acre-ft) 0 .19 1. 99 0 .33 c & E Loss (ft) Cum SA (acres) 0 .19 0 . 89 0 .27 Warning : The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations . Warning : The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION RIVER : Trib . of Alum Cr REACH : AC-la RS : 8982 INPUT Description : Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 274 1107 272 1130 270 1140 268 1150 266.5 1159 268 1182 270 1203 272 1214 274 1279 275 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1140 .055 1159 .085 Bank Sta: Left Right Lengths : Left Channel Right Coef f Contr. Expan . 1140 1159 302 302 302 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Pre E .G. Elev (ft) 269.90 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 269.74 Reach Len . (ft) 302 .00 302 .00 302 .00 Crit W.S . (ft) Flow Area (sq ft) 7 .61 47 .39 17 .50 E.G. Slope (ft/ft) 0 .004881 Area (sq ft ) 7 . 61 47 .39 17 .50 Q Total (cfs) 191 . 00 Flow (cfs ) 8 .37 163.17 19.46 Top Width (ft) 47 .78 Top Width (ft) 8 .72 19.00 20.06 Vel Total (ft/s) 2 .63 Avg. Vel . (ft/s) 1 .10 3 .44 1.11 Max Chl Dpth (ft) 3 .24 Hydr . Depth (ft) 0 .87 2 . 4 9 0.87 Conv. Total (cfs) 2733.9 Conv . (cfs) 119.8 2335 .6 278 .5 Length Wtd . (ft) 302.00 Wetted Per. (ft) 8 .89 19.24 20.14 Min Ch El (ft) 266.50 Shear (lb/sq ft) 0 .26 0 . 75 0 .26 Alpha 1. 48 Stream Power (lb/ft s) 0 . 29 2 .58 0 . 29 Frctn Loss (ft) 2 .67 Cum Volume (acre-ft) 0 .04 1. 03 0 .07 c & E Loss (ft) 0 .02 Cum SA (acres) 0 .06 0 .64 0.09 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4 . This may i ndicate the need for additional cross sections. Warning: The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross Exhibit E-1 4of18 section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Pre E .G. Elev (ft) 270 .89 Element Left OB Channel Right OB Vel Head (ft) 0 .18 Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 270.72 Reach Len . (ft) 302 .00 302 .00 302 .00 Crit W.S. (ft) Flow Area (sq ft) 20.14 65.88 42 .21 E .G. Slope (ft/ft) 0 .003856 Area (sq ft) 20.14 65.88 42 .21 Q Total (cfs) 331 .00 Flow (cfs) 23 .14 251.15 56.70 Top Width (ft) 67 . 78 Top Width (ft) 18.25 19.00 30.53 Vel Total (ft/s) 2 .58 Avg. Vel. (ft/s) 1.15 3 .81 1. 34 Max Chl Dpth (ft) 4 .22 Hydr. Depth (ft) 1.10 3 . 4 7 1. 38 Conv. Total (cfs) 5330 .1 Conv. (cfs) 372 .7 4044 .3 913 .1 Length Wtd . (ft) 302.00 Wetted Per. (ft) 18 .48 19.24 30 .65 Min Ch El (ft) 266.50 Shear (lb/sq ft) 0 .26 0 .82 0 .33 Alpha 1. 71 Stream Power (lb/ ft s) 0 .30 3 .14 0 . 45 Fr ctn Loss (ft) 2 .93 Cum Volume (acre-ft) 0.12 1. 66 0 .19 c & E Loss (ft) 0 .07 Cum SA (acres) 0 .12 0 . 75 0 .15 Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-la RS : 8674 INPUT Description: Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 272 107 9 270 1089 268 1095 266 1115 264 .5 1125 266 1131 268 1154 268 1200 270 1248 272 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1095 .055 1125 .085 Bank Sta: Left Right Coe ff Contr. Expan. 1095 1125 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Pre E.G. Elev (ft) 267 .21 Element Left OB Channel Right OB Vel Head (ft) 0 .36 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 266 .85 Reach Len. (ft) 209.00 209.00 209.00 Crit W.S . (ft) Flow Area (sq ft) 1. 08 47.97 1. 08 E.G. Slope (ft/ ft) 0.017314 Area (sq ft) 1. 08 4 7 . 97 1. 08 Q Total (cfs) 235 .00 Flow (cfs) 1. 36 232.29 1.36 Top Width (ft) 35 .09 Top Width (ft) 2 .55 30.00 2 .55 Vel Total (ft/s) 4 .69 Avg. Vel . (ft/s) 1. 25 4. 84 1.25 Max Chl Dpth (ft) 2 .35 Hydr . Depth (ft) 0 .42 1. 60 0 . 42 Conv . Total (cfs) 1785 .9 Conv. (cfs) 10.3 1765.3 10.3 Length Wtd. (ft) 209 .00 Wetted Per. (ft) 2 .68 30.17 2.68 Min Ch El (ft) 264 .50 Shear (lb/sq ft) 0 .44 1 .72 0 .44 Alpha 1. 06 Stream Power (lb/ft s) 0.55 8.32 0 .55 Frctn Loss (ft) 2 .44 Cum Volume (acre-ft) 0.01 0.31 0.00 c & E Loss (ft) 0 .08 Cum SA (acres) Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Pre Exhibit E-1 5of18 E.G. Elev (ft) 267 .89 Element Left OB Channel Right OB Vel Head (ft) 0 .86 Wt . n-Val . 0.085 0 .055 0.085 w.s. Elev (ft) 267 . 04 Reach Len . (ft) 209.00 209.00 209.00 Crit W.S. (ft) 267 . 04 Flow Area (sq ft) 1. 62 53.65 1. 62 E.G. Slope (ft/ ft) 0 .035580 Area (sq ft ) 1. 62 53.65 1. 62 Q Total (cfs) 408.00 Flow (cfs) 3 .33 401. 35 3 .33 Top Width (ft) 36.23 Top Width (ft) 3 .12 30.00 3 .12 Vel Total (ft/s) 7 .17 Avg . Vel . (ft/s) 2 .06 7 .48 2 .06 Max Chl Dpth (ft) 2.54 Hydr . Depth (ft) 0 .52 1. 79 0 .52 Conv. Total (cfs) 2163.0 Conv. (cfs) 17 .6 2127 .7 17 .6 Length Wtd . (ft) 209.00 Wetted Per. (ft) 3 .28 30 .17 3 .28 Min Ch El (ft) 264 .50 Shear (lb/sq ft) 1. 09 3 .95 1. 09 Alpha 1. 07 Stream Power (lb/ft s) 2 .25 29 .55 2 .25 Frctn Loss (ft) 1. 91 Cum Volume (acre-ft) 0 .02 0 . 46 0 .01 C & E Loss (ft) 0 .23 Cum SA (acres) Warning : The energy equation could not be balanced within the specified number of iterat ions . The program selected the water surface that had the least amount of error between computed and assumed values . Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstr eam conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may i ndicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections. Warning : During the standard step iterations, when the assumed water surface was set equal to cri tical depth, the calculated water surface came back below critical depth . This indicates that there is not a valid subcritical answer. The program defaulted to critical depth . CROSS SECTION REACH : AC-2 RIVER : Trib. of Alum Cr RS : 11019 INPUT Description: Station Elevation Sta Elev 1000 276 1196 270 1372 276 Manning 's n Values Sta n Val 1000 .085 Data Sta 1089 1209 Sta 1196 Bank Sta : Left Right 1196 1214 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) w.s. Elev (ft) Crit W.S. (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total ( ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) c & E Loss (ft) num= Elev 274 268 num= n Val .055 Lengths : 11 Sta 1133 1214 3 Sta 1214 Left 317 El ev 275 270 n Val .085 Channel 317 Sta 1174 1237 Right 317 Profile #lOyr Pre 27 0. 4 8 Element 0. 46 Wt . n-Val . 270.02 Reach Len . (ft) 269 .97 Flow Area (sq ft) 0 .041510 Area (sq ft ) 100.00 Flow (cfs) 18 .25 Top Width (ft) 5 . 46 Avg . Vel . (ft/s) 2 .02 Hydr . Depth (ft) 490.8 Conv. (cfs) 317 .00 Wetted Per . (ft) 268 .00 Shear (lb/sq ft) 1. 00 Stream Power (lb/ ft 1 .84 Cum Volume (acre-ft ) 0 .13 Cum SA (acres) s) Elev 274 272 Sta 1190 1252 Coeff Contr. .1 Left OB 0 .000 317 .00 0 .00 0 .00 0 .00 0 .05 0 .15 0 .01 0 .0 0 .06 0 .03 0 .06 Elev 272 274 Expan . . 3 Channel 0 .055 317 .00 18.31 18.31 100.00 18.00 5 . 4 6 1. 02 4 90. 8 18.54 2 .56 13.98 1. 22 0.94 Right OB 0.000 317.00 0 .00 0 .00 0 .00 0 .20 0 .15 0.01 0 .0 0.20 0.17 0.03 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross Exhibit E-1 6of18 section. This may indicate the need for additional cross sections . CROSS SE:CTION OUTPUT Profile #lOOyr Pre E:.G. E:lev (ft) 271.13 E:lement Left OB Channel Right OB Vel Head (ft) 0 .67 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . E:lev (ft) 27 0 . 4 5 Reach Len. (ft) 317 .00 317 .00 317 .00 rit W.S . (ft) 27 0 . 4 5 Flow Area (sq ft) 0 .31 26 .17 1 .19 E:. G. Slope (ft/ft) 0 .037840 Area (sq ft) 0 .31 26 .17 1 .19 Q Total (cfs) 175.00 Flow (cfs) 0.38 173.12 1. 50 Top Width (ft) 24 .58 Top Width (ft) 1. 36 18.00 5.22 Vel Total (ft/s) 6 .32 Avg . Vel . (ft/s) 1.22 6.61 1.26 Max Chl Dpth (ft) 2 . 45 Hydr . Depth (ft) 0 .23 1. 45 0 .23 Conv . Total (cfs) 899 .6 Conv. (cfs) 1. 9 890.0 7 .7 Length Wtd. (ft) 317 .00 Wetted Per . (ft) 1. 4 4 18.54 5 .24 Min Ch E:l (ft) 268 .00 Shear (lb/sq ft) 0 .51 3 .34 0 .53 Alpha 1. 08 Stream Power (lb/ft s) 0 .62 22.06 0.67 Fr ctn Loss (ft) 1. 45 Cum Volume (acre-ft) 0 .10 1. 96 0.21 c & E: Loss (ft) 0.19 Cum SA (acres) 0 .14 1. 03 0 .09 Warning: The energy equation could not be balanced within the specified number of iterations. The program selected the water surface that had the least amount of error between computed and assumed values. Warning: The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning: During the standard step iterations, when the assumed water surface was set equal to critical depth, the calculated water surface came back below critical depth. This indicates that there is not a valid subcritical answer . The program defaulted to critical depth . CROSS SE:CTION RE:ACH : AC-2 RIVE:R: Trib. of Alum Cr RS : 10703 INPUT Description: Station E:levation Data num= 10 Sta E:lev Sta E:lev Sta E:lev Sta 1000 275 1038 274 1109 272 1132 1210 266.75 1222 268 1232 270 1286 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1156 .055 1222 .085 Bank Sta: Left Right Lengths: Left Channel Right 1156 1222 250 238 220 CROSS SE:CTION OUTPUT Profile #lOyr Pre E:.G. E:lev (ft) 268 .51 E:lement Vel Head (ft) 0 .03 Wt . n-Val . w.s . E:lev (ft) 268 . 4 9 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E:.G. Slope (ft/ft) 0 .002189 Area (sq ft) Q Total (cfs) 100.00 Flow (cfs) Top Width (ft) 74 .27 Top Width (ft) Vel Total ( ft/s) 1.33 Avg . Vel . (ft/s) Max Chl Dpth (ft) 1. 74 Hydr. Depth (ft) Conv . Total (cfs) 2137 .6 Conv. (cfs) Length Wtd. (ft) 230 .25 Wetted Per. (ft) Min Ch E:l (ft) 266 .75 Shear (lb/sq ft) Alpha 1 . 04 Stream Power (lb/ ft Frctn Loss (ft) 1. 36 Cum Volume (acre-ft) c & E: Loss (ft) 0 .01 Cum SA (acres) E:lev Sta 270 1156 270. 9 1359 Coe ff Contr . .1 Left OB 0 .085 250 .00 1. 42 l . 42 0 . 45 5.83 0 .32 0 .24 9.6 5 .85 0 .03 s) 0 .01 0 .03 0 .04 E:lev 268 272 E:xpan . .3 Channel 0 .055 238.00 73.34 73 .34 99 .36 66.00 1. 35 1.11 2124 .0 66 .08 0 .15 0 .21 0 .88 0 .64 Right OB 0 .085 220.00 0 .59 0 .59 0 .19 2 . 43 0 .31 0 .24 4 .0 2 . 48 0 .03 0 .01 0 .17 0 .02 Exhibit E-1 7of18 Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Pre E .G. Elev (ft) 269.08 Element Left OB Channel Right OB Vel Head (ft) 0 .04 Wt. n-Val. 0 .085 0 .055 0 .085 w.s. Elev (ft) 269.04 Reach Len. (ft) 250 .00 238 .00 220 .00 Crit W.S. (ft) Flow Area (sq ft) 6 .50 109.97 2 .71 E .G. Slope (ft/ ft) 0 .001675 Area (sq ft) 6 .50 109 . 97 2 .71 Q Total (cfs) 175.00 Flow (cfs) 3 .00 170. 76 1. 24 Top Width (ft) 83.70 Top Width (ft) 12 .49 66 .00 5 .21 Vel Total (ft/s) 1. 47 Avg. Vel. (ft/s) 0 . 4 6 1 .55 0 . 4 6 Max Chl Dpth (ft) 2 .29 Hydr. Depth (ft) 0 .52 1. 67 0 .52 Conv. Total (cfs) 4276 .0 Conv. (cfs) 73.4 4172.3 30.3 Length Wtd. (ft) 230 .28 Wetted Per . (ft) 12.54 66.08 5.31 Min Ch El (ft) 266 .75 Shear (lb/sq ft) 0.05 0.17 0.05 Alpha 1. 09 Stream Power (lb/ft s) 0.03 0.27 0.02 Fr ctn Loss (ft) 1. 69 Cum Volume (acre-ft) 0.08 1 . 4 6 0.20 C & E Loss (ft) 0 .03 Cum SA (acres) 0.09 0.72 0.05 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-2 RIVER: Trib. of Alum Cr RS : 10455 INPUT Description: Station Elevation Data Sta Elev 1000 272 1110 266 1182 268 Manning's n Values Sta n Val 1000 . 085 Sta 1060 1118 1219 Sta 1100 Bank Sta : Left Right 1100 1110 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) w.s. Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) c & E Loss (ft) num= Elev 270 266 .3 270 num= n Val .055 12 Sta 1080 1125 3 Sta 1110 Elev 268 266 n Val .085 Sta 1100 1146 Coe ff Contr . Expan. .1 .3 Profile #lOyr Pre 267 .14 Element 0.11 Wt. n-Val . 267 . 04 Reach Len . (ft) Flow Area (sq ft) 0.014148 Area (sq ft) 183 .00 Flow (cfs) 84 .71 Top Width (ft) 2.27 Avg . Vel . (ft/s) 1. 54 Hydr . Depth (ft) 1538.5 Conv . (cfs) 228.00 Wetted Per . (ft) 265.50 Shear (lb/sq ft) 1. 32 Stream Power (lb/ft 2 . 45 Cum Volume (acre-ft) 0 .00 Cum SA (acres) Elev Sta Elev 266 1103 265.5 265.9 1166 266 Left OB Channel Right OB 0 .085 0.055 0.085 228 .00 228 .00 228 .00 5 . 40 12.90 62 .34 5 . 4 0 12.90 62.34 7 .24 48 .91 126.85 10.40 10.00 64 .32 1. 34 3 . 7 9 2 .03 0 .52 1. 29 0 .97 60 .9 411. 2 1066.5 10.45 10.06 64 .39 0 . 4 6 1.13 0 .86 s) 0. 61 4.29 1. 7 4 0 .02 0.24 0.17 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Pre Exhibit E-1 8of18 E.G. Elev (ft) 267 .36 Element Left OB Channel Ri ght OB Vel Head (ft) 0 .32 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 267 .03 Reach Len. (ft) 228 .00 228.00 228.00 Crit W.S . (ft) 266 .92 E'low Area (sq ft) 5.34 12.84 61.95 E.G . Slope (ft/ft) 0 .043823 Area (sq ft) 5 .34 12.84 61 .95 Q Total (cfs) 319 .00 E'low (cfs ) 12.55 85.40 221 .05 Top Width (ft) 84 .60 Top Width (ft) 10.34 10.00 64 .27 Vel Total (ft/s) 3 .98 Avg . Vel . ( ft/s) 2.35 6 .65 3.57 Max Chl Dpth (ft) 1. 53 Hydr. Depth (ft) 0 .52 1. 28 0.96 Conv . Total (cfs) 1523.8 Conv. (cfs) 59.9 407 .9 1056.0 Length Wtd . (ft) 228 .00 Wetted Per . (ft) 10.39 10.06 64 . 35 Min Ch El (ft) 265 .50 Shear (lb/sq ft) 1. 41 3. 4 9 2 .63 Alpha 1. 32 Stream Power (lb/ ft s) 3.30 23.23 9. 4 0 E'rctn Loss (ft) 1. 97 Cum Volume (acre-ft) 0.03 0 . 4 0 0 .17 c & E Loss (ft) 0 .07 Cum SA (acres) Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for addi tional cross sections. Warning: The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC -lb INPUT Description: Station Elevation Data Sta Elev 1000 268 1175 265 1321 268 Manning's n Values Sta n Val 1000 . 085 Sta 1034 1203 1398 Sta 1062 Bank Sta : Left 1062 Right 1260 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. ( ft ) Min Ch El (ft) Alpha E'rctn Loss (ft) C & E Loss (ft) RS : 8457 num= Elev 266 264 270 num= n Val .055 12 Sta 1062 1232 3 Sta 1260 Elev 264 262 .5 n Val .085 Sta 1095 1260 Lengths : Left Channel Right 145 75 85 Profile #lOyr Pre 264 .69 Element 0 .10 Wt . n-Val . 264.59 Reach Len . (ft) E'low Area (sq ft) 0 . 009637 Area (sq ft) 417 .00 E'low (cfs) 181.47 Top Width (ft) 2.53 Avg . Vel . (ft/s) 2 .09 Hydr . Depth (ft) 4247 .7 Conv. (cfs) 85 .53 Wetted Per . (ft) 262 .50 Shear (lb/sq ft) 1.03 Stream Power (lb/ ft 0 .91 Cum Volume (acre-ft) 0 .02 Cum SA (acres) Warning: Divided flow computed for this cross-section. CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total ( cfs) Top Width (ft) Vel Total (ft/s) Profile HlOOyr Pre 265 .32 0 .10 265 .22 0 .005588 725 .00 228 .51 2 .44 Element Wt . n-Val . Reach Len. (ft) E'low Area (sq ft) Area (sq ft) E'low ( cfs) Top Width (ft) Avg. Vel. (ft/s) s) Elev Sta 263 1127 264 1282 Coeff Contr . .1 Left OB 0.085 75.00 2 . 43 2 . 43 1. 84 8.24 o. 76 0 .29 18.7 8 .26 0 .18 0 .13 11. 41 13. 71 Left OB 0 .085 75 .00 10 . 43 10. 43 9 . 7 9 17.09 0. 94 Elev 264 266 Expan . .3 Channel 0.055 85.00 160.25 160.25 413.72 166. 75 2 .58 0. 96 4214 .3 166.87 0 .58 1. 4 9 4.77 1. 43 Channel 0 .055 85 .00 278 .93 278 .93 707 .53 198 .00 2 .54 Right OB 0.085 145.00 1. 91 1. 91 1 .44 6.48 0 . 76 0. 29 14 . 7 6.50 0.18 0.13 1. 86 2 .13 Right OB 0 .085 145.00 8.19 8 .19 7 .68 13 . 43 0 . 94 Exhibit E-1 9of18 Max Chl Dpth (ft) 2 .72 Hydr. Depth (ft) 0 .61 1. 41 0 .61 Conv . Total (cfs) 9699 .0 Conv. (cfs) 130.9 9465.3 102.8 Length Wtd. (ft) 86 .00 Wetted Per . (ft) 17.13 198.14 13.48 Min Ch El (ft) 262 .50 Shear (lb/sq ft) 0 .21 0 . 4 9 0 .21 Alpha 1.06 Stream Power (lb/ft s) 0.20 1. 25 0 .20 E'rctn Loss (ft) 0 .67 Cum Volume (acre-ft) 20.06 5 . 75 3 .43 c & E Loss (ft) 0.03 Cum SA (acres) 16.16 1. 47 2 .86 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . CROSS SECTION REACH: AC-lb RIVER: Trib. of Alum Cr RS : 8291 INPUT Description: Station Elevation Sta Elev 0 270 416 261 644 270 Manning's n Values Sta n Val 0 . 085 Data Sta 148 424 num= Elev 268 262 num= Sta n Val 381 . 055 Bank Sta: Left Right Lengths: 381 424 11 Sta 212 436 3 Sta 424 Left 58 Elev 266 264 n Val .085 Channel 58 Sta 355 459 Right 58 CROSS SECTION OUTPUT Profile #lOyr Pre E.G. Elev (ft) 263 . 76 Element Vel Head (ft) 0.31 Wt . n -Val . w.s. Elev (ft) 263 . 4 6 Reach Len. (ft) Crit W.S . (ft) E'low Area (sq ft) E.G. Slope (ft/ft) 0.011810 Area (sq ft) Q Total (cfs) 417 . 00 E'low (cfs) Top Width (ft) 70 .68 Top Width (ft) Vel Total (ft/s) 4 .00 Avg . Vel. (ft/s) Max Chl Dpth (ft) 2 .46 Hydr . Depth (ft) Conv. Total (cfs) 3837 .1 Conv. (cfs) Length Wtd. (ft) 58 .00 Wetted Per. (ft) Min Ch El (ft) 261 .00 Shear (lb/sq ft) Alpha 1. 23 Stream Power (lb/ft E'rctn Loss (ft) 0 . 48 Cum Volume (acre-ft) c & E Loss (ft) 0 .04 Cum SA (acres) CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 264 .61 Element Vel Head (ft) 0 .44 Wt. n-Val . w.s . Elev (ft) 264 .16 Reach Len. (ft) Crit W.S . (ft) E'low Area (sq ft) E.G. Slope (ft/ft) 0 .011823 Area (sq ft) Q Total (cfs) 725 .00 E'low (cfs) Top Width (ft) 94.60 Top Width (ft) Vel Total ( ft/s) 4.53 Avg. Vel . ( ft/s) Max Chl Dpth (ft) 3.16 Hydr. Depth (ft) Conv. Total (cfs) 6667 .7 Conv. (cfs) Length Wtd . (ft) 58 .00 Wetted Per. (ft) Min Ch El (ft) 261 .00 Shear (lb/sq ft) Alpha 1. 39 Stream Power (lb/ft E'rctn Loss (ft) 0 . 4 9 Cum Volume (acre-ft) C & E Loss (ft) 0 .05 Cum SA (acres) CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC -lb RS : 8225 s) s) Elev 264 266 Sta 381 544 Coe ff Contr. .1 Left OB 0.085 58.00 13.80 13.80 21.18 18.94 1. 54 0. 73 194 . 9 19 . 00 0.54 0.82 11. 40 13 .69 Left OB 0 .085 58 .00 31 .22 31. 22 52 .24 37 .71 1. 67 0 .83 480.5 37 . 7 9 0 .61 1. 02 20 .02 16.11 Elev 262 268 Expan. .3 Channel 0 .055 58.00 84 .15 84 .15 386.11 43.00 4 .59 1. 96 3552.9 43.08 1. 44 6.61 4.53 1. 23 Channel 0 .055 58.00 114 . 54 114 . 54 645 .84 43 .00 5 .64 2 .66 5939.6 43 .08 1. 96 11 . 07 5 .37 1.23 Right OB 0 .085 58.00 6.37 6.37 9.71 8 .74 1 .52 0 . 73 89. 3 8 .86 0.53 0.81 1. 84 2 .10 Right OB 0 .085 58 .00 14 .12 14 .12 26 .92 13 .88 1. 91 1. 02 247 .6 14 .06 0.74 1. 41 3 .39 2 .81 Exhibit E-1 10of18 INPUT Description : Station Elevation Data num= 11 Sta Elev Sta Elev Sta Elev Sta 137 270 307 268 507 266 537 582 260 610 262 635 265 665 729 268 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 137 .085 552 .055 610 .085 Bank Sta : Left Right Lengths : Left Channel Right 552 610 116 116 116 CROSS SECTION OUTPUT Profile #lOyr Pre E.G. Elev (ft) 263.25 Element Vel Head {ft) 0 .18 Wt . n-Val . w.s. Elev {ft) 263.07 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft/ ft) 0 .006034 Area {sq ft) Q Total (cfs) 417 .00 Flow {cfs) Top Width (ft) 74 .96 Top Width (ft) Vel Total ( ft/s) 3 .23 Avg . Vel . (ft/s) Max Chl Dpth (ft) 3 . 07 Hydr. Depth (ft) Conv. Total (cfs) 5368 .3 Conv. (cfs) Length Wtd . (ft) 116.00 Wetted Per. (ft) Min Ch El (ft) 260.00 Shear (lb/sq ft) Alpha 1. 09 Stream Power (lb/ft Frctn Loss (ft) 0 . 72 Cum Volume (acre-ft) C & E Loss (ft) 0 .01 Cum SA {acres) CROSS SECTION OUTPUT Profile #lOOyr Pre E .G. Elev (ft) 264 . 07 Element Vel Head (ft) 0 .27 Wt. n-Val. w.s . Elev (ft) 263.79 Reach Len . (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .006376 Area (sq ft) Q Total (cfs) 725.00 Flow (cfs) Top Width (ft) 86.39 Top Width (ft) Vel Total ( ft/s) 3 .87 Avg. Vel . ( ft/s) Max Chl Dpth (ft) 3 . 7 9 Hydr. Depth (ft) Conv. Total (cfs) 907 9 . 7 Conv. (cfs) Length Wtd . (ft) 116. 00 Wetted Per. (ft) Min Ch El (ft) 260.00 Shear {lb/sq ft) Alpha 1.17 Stream Power (lb/ ft Frctn Loss (ft) 0 .60 Cum Volume (acre-ft) c & E Loss (ft) 0.05 Cum SA (acres) CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb RS : 8077 INPUT Description : Station Elevation Data num= 13 Sta Elev Sta Elev Sta Elev Sta 0 270 173 268 340 266 469 575 260 582 259 .5 590 260 620 673 264 716 268 7 91 270 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 .085 575 .055 590 .085 Bank Sta : Left Right Lengths : Left Channel Right 575 590 78 87 82 Elev Sta 264 552 266 691 Coe ff Contr. .1 Left OB 0 .085 116.00 4 .30 4 .30 3 .83 8 .03 0 .89 0 .54 4 9 . 3 8 .10 0 .20 s) 0 .18 11 . 39 13.67 Left OB 0 .085 116.00 12 .06 12 .06 15 .56 13 . 45 1. 29 0 .90 194 .9 13.57 0 .35 s) 0 . 46 19 .99 16.07 Elev Sta 264 530 261 663 Coef f Contr. .1 Elev 262 267 Expan . .3 Channel 0 .055 116.00 120.12 120.12 408 .91 58 .00 3 . 40 2 .07 5264 .2 58 .14 0 .78 2 .65 4 .39 1.16 Channel 0 .055 116.00 162 .02 162 .02 692 .13 58 .00 4 .27 2 . 79 8668 .0 58 .14 1.11 4 .74 5 .18 1.17 Elev 262 262 Expan . .3 Right OB 0 .085 116.00 4 .78 4 .78 4 .26 8 .92 0 .89 0 .54 54 . 8 8 .99 0 .20 0 .18 1. 83 2 .09 Right OB 0 .085 116 .00 13 . 40 13 .40 1 7 . 31 14 . 94 1. 29 0 .90 216 .8 15.05 0.35 0 .46 3 .37 2 . 7 9 Exhibit E-1 11of18 CROSS SECTION OUTPUT Profile HlOyr Pre E.G. Elev (ft) 262 .51 Element Left OB Channel Right OB Vel Head (ft) 0 .13 Wt. n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 262 .38 Reach Len. (ft) 78.00 87 .00 82.00 Crit W.S . (ft) Flow Area (sq ft) 64 .41 39. 48 94 .74 E.G. Slope (ft/ft) 0.006451 Area (sq ft) 64.41 39.48 94 .74 Q Total (cfs) 417 .00 Flow (cfs) 98. 46 163.06 155. 4 8 Top Width (ft) 146 .56 Top Width (ft) 56.65 15.00 7 4. 91 Vel Total ( ft/s l 2 .10 Avg . Vel . (ft/s) 1. 53 4.13 1. 64 Max Chl Dpth (ft) 2 .88 Hydr . Depth (ft) 1.14 2.63 1. 26 Conv . Total (cfs) 5191 .9 Conv. (cfs) 1225.9 2030.1 1935.9 Length Wtd. (ft) 84 .24 Wetted Per . (ft) 56.70 15.03 74 .98 Min Ch El (ft) 259 .50 Shear (lb/sq ft) 0. 46 1. 06 0.51 Alpha 1. 87 Stream Power (lb/ft s) 0. 70 4. 37 0.84 Frctn Loss (ft) 0 .32 Cum Volume (acre-ft) 11. 30 4.18 1. 70 c & E Loss (ft) 0 .00 Cum SA (acres) 13.58 1. 06 1. 98 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4 . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile HlOOyr Pre E.G. Elev (ft) 263 .42 Element Vel Head (ft) 0 .11 Wt . n-Val . w.s . Elev (ft) 263 .31 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .004251 Area (sq ft) Q Total (cfs) 725 .00 Flow (cfs) Top Width (ft) 179. 45 Top Width (ft) Vel Total (ft/s) 2 .07 Avg . Vel . (ft/s) Max Chl Dpth (ft) 3 .81 Hydr. Depth (ft) Conv . Total (cfs) 11119 . 7 Conv. (cfs) Length Wtd. (ft) 83 .50 Wetted Per . (ft) Min Ch El (ft) 259 .50 Shear (lb/sq ft) Alpha 1. 67 Stream Power (lb/ ft Frctn Loss (ft) 0 .27 Cum Volume (acre-ft) c & E Loss (ft) 0 .00 Cum SA (acres) CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb INPUT Description : Station Elevation Data Sta Elev Sta 0 270 168 676 260 690 750 267 766 Manning 's n Values Sta n Val Sta 0 .085 676 Bank Sta: Left 676 Right 708 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S. (ft) E .G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) RS : 7985 num= 13 Elev Sta Elev Sta 268 307 266 4 91 257.3 708 260 734 268 785 269 num= 3 n Val Sta n Val .055 708 .085 Lengths : Left Channel Right 90 90 90 Profile #lOyr Pre 262 .18 0 .12 262 .06 0 .002543 417 .00 123.15 2 .06 4.76 8269 .7 Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow ( cfs) Top Width (ft) Avg . Vel. (ft/ s) Hydr. Depth (ft) Conv. (cfs) s) Left OB 0 .085 78.00 129.99 129 .99 196.70 84 . 91 1. 51 1.53 3016.8 84 . 97 0. 41 0 .61 19 . 81 15 .94 Elev Sta 264 615 262 741 Coeff Contr. . 1 Left OB 0.085 90 .00 65 .06 65 .06 57 .37 65 .00 0 .88 1.00 1137 . 8 Channel 0 .055 87 .00 53.38 53.38 218.82 15.00 4.10 3.56 3356.1 15.03 0. 94 3.86 4.89 1. 07 Elev 262 265 Expan. .3 Channel 0 .055 90 .00 109 .26 109.26 334 .34 32 .00 3 .06 3 . 41 6630 .4 Right OB 0 .085 82.00 166.29 166.29 309.49 79.54 1. 86 2 .09 4746 .8 79. 70 0 .55 1. 03 3.13 2.67 Right OB 0 .085 90 .00 27 .68 27 .68 25 .29 26 .15 0 .91 1. 06 501 .5 Exhibit E-1 12of18 Length Wtd . (ft) 90 .00 Wetted Per. (ft) Min Ch El (ft) 257 .30 Shear (lb/sq ft) Alpha 1. 80 Stream Power (lb/ ft Frctn Loss (ft) 0 .21 Cum Volume (acre-ft) c & E Loss (ft) 0 .00 Cum SA (acres) CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 263.15 Element Vel Head (ft) 0 .14 Wt . n-Val . w.s. Elev (ft) 263.01 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .002509 Area (sq ft ) Q Total (cfs) 725.00 Flow (cfs) Top Width (ft) 183.72 Top Width (ft) Vel Total (ft/s) 2 .09 Avg. Vel . (ft/s) Max Chl Dpth (ft) 5 .71 Hydr. Depth (ft) Conv. Total (cfs) 14473.4 Conv. (cfs) Length Wtd . (ft) 90.00 Wetted Per. (ft) Min Ch El (ft) 257 .30 Shear (lb/sq ft) Alpha 2 .10 Stream Power (lb/ft Frctn Loss (ft) 0 .25 Cum Volume (acre-ft) c & E Loss (ft) 0 .01 Cum SA (acres) CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS : 7895 INPUT Description : Station Elevation Data Sta Elev Sta 0 270 78 585 260 598 630 262 647 Manning 's n Values Sta n Val Sta 0 .085 585 Bank Sta: Left Right 585 622 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) w.s. Elev (ft) Crit W.S . (ft) E .G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total ( ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Fr ctn Loss (ft) c & E Loss (ft) num= 15 Elev Sta Elev Sta 268 183 266 381 258 611 256 .42 615 264 672 .37 266 693.27 num= 3 n Val Sta n Val .055 622 .085 Lengths : Left Channel Right 85 85 85 Profile #lOyr Pre 261 .97 Element 0 .13 Wt . n-Val. 261. 84 Reach Len. (ft) Flow Area (sq ft) 0 .002178 Area (sq ft) 417 .00 Flow (cfs) 60.93 Top Width (ft) 2 .65 Avg . Vel . (ft/s) 5 .42 Hydr. Depth (ft) 8934.4 Conv. (cfs) 85.00 Wetted Per. (ft) 256.42 Shear (lb/sq ft) 1. 20 Stream Power (lb/ ft 0 .26 Cum Volume (acre-ft) 0 .01 Cum SA (acres) 65 .03 32 . 4 6 26 .24 0 .16 0 .53 0 .17 s) 0 .14 1. 64 0 .15 11 .18 4 .03 1. 59 13 . 47 1. 02 1. 89 Left OB Channel Right OB 0 .085 0 .055 0 .085 90 .00 90 .00 90 .00 153 .75 139 .39 53 .34 153 .75 139 .39 53 .34 155 .88 4 98 . 41 70 .72 123 .38 32 .00 28 .35 1. 01 3 .58 1. 33 1. 25 4 .36 1. 88 3111. 8 9949.8 1411 .8 123 .42 32 . 4 6 28 .63 0 .20 0 .67 0 .29 s) 0 .20 2 .41 0 .39 19 . 55 4 .70 2 . 92 15 . 76 1. 02 2 .57 Elev Sta Elev 264 567 262 258 622 260 267 718.98 268 Coe ff Contr. Expan . .1 . 3 Left OB Channel Right OB 0 .085 0 .055 0 .085 85 .00 85 .00 85 .00 15 .25 135 .53 6 .78 15.25 135.53 6 .78 11. 72 400 .15 5 .13 16 .57 37 .00 7 .36 0 .77 2 .95 0 . 76 0 .92 3 .66 0 .92 251 .1 8573 .5 109.8 16.67 37 .83 7 .59 0 .12 0 . 4 9 0 .12 s) 0 .10 1. 4 4 0 .09 11 .10 3 .78 1.55 13.39 0 .95 1. 85 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E .G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Profile #lOOyr Pre 262.88 0 .24 262.64 Element Wt . n -Val . Reach Len . (ft) Left OB 0 .085 85 .00 Channel 0 .055 85 .00 Right OB 0 .085 85 .00 Exhibit E-1 13of18 Crit W.S. (ft) Flow Area (sq ft) 48 .88 165 .26 14 . 91 E.G. Slope (ft/ft) 0 .003192 Area (sq ft) 48 .88 165 .26 14 . 91 Q Total (cfs) 725 .00 Flow (cfs) 35 .35 674 .11 15 .55 Top Width (ft) 128 .36 Top Width (ft) 77 .89 37 .00 13 . 4 7 Vel Total (ft/s) 3 .17 Avg . Vel . (ft/s) 0 . 72 4 .08 1. 04 Max Chl Dpth (ft) 6 .22 Hydr. Depth (ft) 0 .63 4 . 4 7 1.11 Conv. Total (cfs) 12831 .9 Conv. (cfs ) 625.6 11931.1 275 .1 Length Wtd . (ft) 85 .00 Wetted Per. (ft) 78 .00 37 .83 13. 76 Min Ch El (ft) 256 .42 Shear (lb/sq ft) 0 .12 0 .87 0 .22 Alpha 1. 55 Stream Power (lb/ ft s) 0.09 3 .55 0 .23 Frctn Loss (ft) 0 .34 Cum Volume (acre-ft) 19 .34 4.39 2 .85 c & E Loss (ft) 0 .00 Cum SA (acres) 15.55 0.95 2 .52 CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb RS : 7811 INPUT Description : Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 265.12 1204 .52 259.67 1213.67 255.6 1216.67 255 .6 1217 .66 258 .13 1229.86 260.17 1245.36 260 1251. 36 263 .82 1282.23 264.39 1306.3 265 1337 .07 266 1363.78 267 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1204 .52 .055 1217 .66 .085 Bank Sta: Left Right Lengths : Left Channel Right Coef f Contr. Expan. 1204 .52 1217 .66 850 850 850 .1 .3 CROSS SECTION OUTPUT Profile HlOyr Pre E.G. Elev (ft) 261 .70 Element Left OB Channel Right OB Vel Head (ft) 0 .20 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 261 .50 Reach Len. (ft) 850.00 850.00 850.00 Crit W.S . (ft) Flow Area (sq ft) 62.89 57 .66 52 .39 E.G. Slope (ft/ft) 0.004753 Area (sq ft) 62.89 57 . 66 52.39 Q Total (cfs) 417 .00 Flow (cfs) 71 . 43 255.33 90.24 Top Width (ft) 111 . 90 Top Width (ft) 68.70 13.14 30.06 Vel Total (ft/s) 2.41 Avg . Vel . (ft/s) 1.14 4.43 1 .72 Max Chl Dpth (ft) 5 .90 Hydr. Depth (ft) 0.92 4.39 1. 74 Conv . Total (cfs) 6048 .6 Conv. (cfs) 1036.1 3703.6 1308.9 Length Wtd. (ft) 850 .00 Wetted Per . (ft) 68.73 15. 73 30.66 Min Ch El (ft) 255 .60 Shear (lb/sq ft) 0.27 1. 09 0.51 Alpha 2 .21 Stream Power (lb/ft s) 0.31 4.82 0.87 Frctn Loss (ft) 4 .30 Cum Volume (acre-ft) 11. 02 3.59 1. 49 c & E Loss (ft) 0 .00 Cum SA (acres) 13.31 0.90 1. 81 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Profile #lOOyr Pre 262 .54 Element 0 .23 Wt . n-Val . 262 . 31 Reach Len. (ft) Flow Area (sq ft) 0.005167 Area (sq ft) 725 .00 Flow (cfs) 143.57 Top Width (ft) 2 .62 Avg . Vel. (ft/s) 6 . 71 Hydr. Depth (ft) 10086 .1 Conv. (cfs) 850 .00 Wetted Per. (ft) 255 .60 Shear (lb/sq ft) 2 .16 Stream Power (lb/ ft Left OB Channel Right OB 0 .085 0 .055 0 .085 850.00 850.00 850.00 130.85 68.31 77 .26 130.85 68.31 77 .26 197. 85 353.07 174 .08 99 .10 13.14 31.33 1. 51 5.17 2.25 1. 32 5.20 2.47 2752 .5 4911.8 2421 .8 99 .14 15. 73 32.17 0. 43 1. 40 0.77 s) 0.64 7.24 1. 75 Exhibit E-1 14of18 Frctn Loss (ft) C & E Loss (ft) 4. 51 0.01 Cum Volume (acre-ft) Cum SA (acres) 19.17 15.38 4 .16 0 .90 2.76 2 . 48 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may i ndicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS: 6900 INPUT Description: Station Elevation Data num= 11 Sta Elev Sta Elev Sta Elev Sta 797 260 918 258 1000 257 .12 1227 .24 1269.82 255 .13 1277 . 72 250.75 1288 .22 254 .99 1312 .83 1503.58 262 .6 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 797 .085 1269 .82 .055 1288 .22 .085 Bank Sta : Left Right Lengths: Left Channel Right 1269.82 1288 .22 825 800 775 CROSS SECTION OUTPUT Profile #lOyr Pre E .G. Elev (ft) 257. 4 0 Element Vel Head (ft) 0 .21 Wt. n-Val . w.s. Elev (ft) 257 .20 Reach Len . (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .005259 Area (sq ft) Q Total (cfs) 704 .00 Flow (cfs) Top Width (ft) 312 .81 Top Width (ft) Vel Total (ft/s) 2 .02 Avg . Vel . (ft/s) Max Chl Dpth (ft) 6. 45 Hydr . Depth (ft) Conv. Total (cfs) 9707 . 7 Conv . (cfs) Length Wtd . (ft) 811. 70 Wetted Per . (ft) Min Ch El (ft) 250.75 Shear (lb/sq ft) Alpha 3 .27 Stream Power (lb/ft Fr ctn Loss (ft) 6 .47 Cum Volume (acre-ft) C & E Loss (ft) 0.00 Cum SA (acres) Elev Sta Elev 255.85 1244 .32 254 .84 258.08 1412 .83 260 .32 Coe ff Contr. Expan . .1 . 3 Left OB Channel Right OB 0 .085 0 .055 0 .085 825.00 800.00 775.00 249.67 79. 03 19.37 249.67 79.03 19. 37 2 95. 4 2 382 .51 26.07 276.85 18. 40 17 .56 1.18 4 .84 1.35 0 .90 4 .30 1.10 4073 .6 5274 .6 359.5 276.88 20.36 17 .70 0 .30 1. 27 0 .36 s) 0 .35 6 .17 0 . 48 7 . 97 2 .26 0 . 79 9.94 0 .59 1.35 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 258.02 Element Left OB Channel Right OB Vel Head (ft) 0.20 Wt . n-Val . 0 .085 0 .055 0.085 w.s. Elev (ft) 257 .82 Reach Len . (ft) 825.00 800.00 775.00 Crit W.S. (ft) 257 .28 Flow Area (sq ft) 441. 84 90.59 31. 97 E .G. Slope (ft/ ft) 0 .005390 Area (sq ft) 441. 84 90.59 31. 97 Q Total (cfs) 1219.00 Flow (cfs) 681. 4 4 486.08 51 . 4 8 Top Width (ft) 376 .31 Top Width (ft) 335.35 18.40 22.56 Vel Total ( ft/s) 2 .16 Avg . Vel. ( ft/s) 1. 54 5 .37 1. 61 Max Chl Dpth (ft) 7 . 07 Hydr . Depth (ft) 1. 32 4 . 92 1. 42 Conv. Total (cfs) 16604.5 Conv . (cfs) 9282 .2 6621 .1 701 .2 Length Wtd . (ft) 814 .33 Wetted Per . (ft) 335.39 20.36 22.74 Min Ch El (ft) 250 . 7 5 Shear (lb/sq ft) 0 .44 1. 50 0 . 47 Alpha 2 .77 Stream Power (lb/ft s) 0 .68 8 .03 0 .76 Frctn Loss (ft) 6 . 75 Cum Volume (acre-ft) 13.58 2 .61 1 .70 c & E Loss (ft) 0 .00 Cum SA (acres) 11.14 0 .59 1. 95 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less Exhibit E-1 15of18 than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS : 6084 INPUT Description: Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta 917 252 958 250 1000 249.94 1046.35 1224 .66 249.58 1310.49 248 .9 1315.19 245.75 1316.84 1325 .11 249.95 1350.48 250.13 1425.92 252.19 1435.92 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 917 .085 1310. 49 .055 1320.33 .085 Bank Sta: Left Right Lengths : Left Channel Right 1310 .49 1320.33 250 250 275 CROSS SECTION OUTPUT Profile HlOyr Pre E.G. Elev (ft) 250 .93 Element Vel Head (ft) 0 .25 Wt . n-Val . w.s . Elev (ft) 250 .68 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .013372 Area (sq ft) Q Total (cfs) 704 .00 Flow (cfs ) Top Width (ft) 426 .59 Top Width (ft) Vel Total (ft/s) 2 .14 Avg . Vel . (ft/s) Max Chl Dpth (ft) 4 .99 Hydr . Depth (ft) Conv . Total (cfs) 6088 .1 Conv. (cfs) Length Wtd. (ft) 250 .98 Wetted Per . (ft) Min Ch El (ft) 245 .69 Shear (lb/sq ft) Alpha 3 . 4 9 Stream Power (lb/ft Frctn Loss (ft) 2 .05 Cum Volume (acre-ft) c & E Loss (ft) 0 .02 Cum SA (acres) Elev Sta Elev 250.4 1130.88 250 .47 245.69 1320.33 248 .71 252.49 1445.92 252 .69 Coe ff Contr. Expan. .1 .3 Left OB Channel Right OB 0 .085 0 .055 0 .085 250.00 250.00 275.00 264 .11 36.10 28.25 264 .11 36.10 28.25 429.16 236.05 38.79 366.44 9.84 50.31 1 .62 6 .54 1. 37 0. 72 3 .67 0.56 3711. 3 2041.3 335.5 366.47 11. 92 so . 48 0 .60 2.53 0.47 s) 0 .98 16.52 0.64 3 .11 1.20 0.37 3 .84 0.33 0. 75 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 251 .27 Element Left OB Channel Right OB Vel Head (ft) 0.24 Wt . n-Val . 0.085 0 .055 0 .085 w.s . Elev (ft) 251 .03 Reach Len. (ft) 250.00 250.00 275 .00 Crit W.S . (ft) Flow Area (sq ft) 392.95 39.53 47.99 E.G. Slope (ft/ft) 0.014348 Area (sq ft) 392.95 39.53 47 .99 Q Total (cfs) 1219.00 Flow (cfs) 850.98 284 .40 83.62 Top Width (ft) 446 .48 Top Width (ft) 373 .58 9.84 63.06 Vel Total (ft/s) 2 .54 Avg. Vel . (ft/s) 2.17 7.19 1.74 Max Chl Dpth (ft) 5 .34 Hydr . Depth (ft) 1. 05 4. 02 0. 76 Conv . Total (cfs) 10176.7 Conv. (cfs) 7104 .4 2374 .3 698 .1 Length Wtd . (ft) 251. 57 Wetted Per. (ft) 373.61 11. 92 63 .23 Min Ch El (ft) 245 .69 Shear (lb/sq ft) 0.94 2.97 0 .68 Alpha 2 .42 Stream Power (lb/ft s) 2.04 21.36 1 .18 Frctn Loss (ft) 1. 70 Cum Volume (acre-ft) 5.67 1. 41 0 .99 C & E Loss (ft) 0 .04 Cum SA (acres) 4 .42 0.33 1.19 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections . CROSS SECTION RIVER : Trib . of Alum Cr Exhibit E-1 16of18 REACH : AC-lb INPUT Description: Station Elevation Data Sta Elev Sta 737 250 911 1222.23 248 .21 1227 .41 1371.42 250 .03 1391 .42 Manning's n Values Sta n Val Sta 737 .085 1222.23 Bank Sta : Left Right 1222.23 1244 .43 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S. (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) RS : 5660 num= 12 Elev Sta Elev Sta Elev Sta 248 1000 242 .36 1230 .48 250 .37 247 .81 1068 .63 242 .57 1244 .43 247 .42 l149 .06 247 .95 1265 .l num= 3 n Val Sta n Val .085 .055 1244 .43 Lengths : Left Channel Right 475 350 450 Profile #lOyr Pre 248.86 0.17 248.69 0 .005596 742.00 447 .21 1. 80 6.33 9918 .6 417 . 35 242.36 3.30 3.67 0.05 Element Wt . n-Val . Reach Len . (ft) Flow Area (sq ft) Area (sq ft) Flow ( cfs) Top Width (ft) Avg . Vel. (ft/ s) Hydr . Depth (ft) Conv . (cfs) Wetted Per. (ft) Shear (lb/sq ft) Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) Coeff Contr. .1 Left OB 0 .085 350.00 303.39 303.39 346.72 371. 38 1.14 0 .82 4 634 . 8 371.39 0 .29 0.33 1. 4 8 1. 73 Elev 247 .78 248 .09 Expan . . 3 Channel 0.055 450.00 84 .63 84 .63 377 .18 22 .20 4 .46 3 .81 5042 .0 25 .84 1.14 5 .10 0 .85 0 .24 Right OB 0.085 475 .00 23 . 7 9 23 . 7 9 18 .09 53.63 0 . 76 0 .44 241 .9 53.63 0 .15 0 .12 0 .21 0 . 42 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 249.53 Element Left OB Channel Right OB Vel Head (ft) 0. ll Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 249.42 Reach Len . (ft) 350 .00 450 .00 475 .00 Crit W.S. (ft) Flow Area (sq ft) 597 .34 100.82 77 .47 E.G. Slope (ft/ft) 0 .004064 Area (sq ft) 597 .34 100.82 77 .47 Q Total (cfs) 1329.00 Flow (cfs) 822 .61 430 .29 76 .10 Top Width (ft) 550.62 Top Width (ft) 434 .82 22 .20 93 .59 Vel Total ( ft/s) 1. 71 Avg . Vel . (ft/s) 1 .38 4 .27 0 .98 Max Chl Dpth (ft) 7 .06 Hydr. Depth (ft) 1. 37 4 . 54 0 .83 Conv. Total (cfs) 20847 .8 Conv. (cfs) 12904 .2 6749 .9 ll 93 . 7 Length Wtd . (ft) 4 07 . 91 Wetted Per. (ft) 434 .83 25 .84 93 .61 Min Ch El (ft) 242 .36 Shear (lb/sq ft) 0 .35 0 .99 0 .21 Alpha 2 .43 Stream Power (lb/ft s) 0 . 48 4 .22 0 .21 Frctn Loss (ft) 3 .32 Cum Volume (acre-ft) 2 .83 1. 01 0 .59 c & E Loss (ft) 0.09 Cum SA (acres) 2 .11 0 .24 0 . 70 Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION REACH : AC -lb INPUT RIVER : Trib. of Alum Cr RS : 5154 Exhibit E-1 17of18 Description: Station Elevation Data num= 14 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 247 .07 1029 .58 245.97 1065.83 245.16 1115.84 245.22 1145. 55 244 .43 1172 . 2 242 .23 1208 .45 245.06 1241 .84 245.83 1255.93 238.31 1268.06 243 .3 1315 .83 245.78 1365 .83 245.56 1415.83 246.3 1443.75 247 .28 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1241. 84 .055 1268 .06 .085 Bank Sta: Left Right Coef f Contr . Expan . 1241 .84 1268 .06 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Pre E.G. Elev (ft) 245 .14 Element Left 08 Channel Right 08 Vel Head (ft) 0.64 Wt. n-Val . 0.085 0.055 0 .085 w.s . Elev (ft) 244.50 Reach Len . (ft) Crit W.S . (ft) 244 .23 flow Area (sq ft) 64 .28 80.72 13. 87 E.G. Slope (ft/ ft) 0 .015825 Area (sq ft) 64 .28 80.72 13. 87 Q Total (cfs) 752 .00 flow (cfs) 150.43 579.89 21.68 Top Width (ft) 105 .20 Top Width (ft) 58.36 23.73 23.11 Vel Total ( ft/s) 4 .73 Avg . Vel . ( ft/s) 2 .34 7 .18 1 .56 Max Chl Dpth (ft) 6.19 Hydr . Depth (ft) 1.10 3 . 40 0.60 Conv. Total (cfs) 5977 .9 Conv. (cfs) 1195. 9 4609.7 172.3 Length Wtd. (ft) Wetted Per . (ft) 58.54 26.26 23.15 Min Ch El (ft) 238.31 Shear (lb/sq ft) 1. 08 3 .04 0 .59 Alpha 1. 83 Stream Power (lb/ft s) 2 .54 21 .81 0.93 frctn Loss (ft) Cum Volume (acre-ft) c & E Loss (ft) Cum SA (acres) Warning: Divided flow computed for this cross-section. CROSS SECTION OUTPUT Profile #lOOyr Pre E.G. Elev (ft) 246 .12 Element Left 08 Channel Right 08 Vel Head (ft) 1. 03 Wt . n-Val . 0.085 0.055 0 .085 w.s. Elev (ft) 245 .09 Reach Len. (ft) Crit W.S. (ft) 245.09 flow Area (sq ft) 107.63 95.08 30.91 E.G. Slope (ft/ft) 0 .024103 Area (sq ft) 107.63 95.08 30.91 Q Total (cfs) 1320.00 Flow (cfs) 330.69 911 . 42 77 . 88 Top Width (ft) 148.49 Top Width (ft) 89.14 24 .84 34 .51 Vel Total (ft/s) 5 .65 Avg . Vel . (ft/s) 3 .07 9.59 2.52 Max Chl Dpth (ft) 6 . 78 Hydr . Depth (ft) 1. 21 3 .83 0.90 Conv. Total (cfs) 8502.4 Conv . (cfs) 2130.1 5870.7 501. 7 Length Wtd. (ft) Wetted Per . (ft) 89.35 27.52 34.55 Min Ch El (ft) 238 .31 Shear (lb/sq ft) 1. 81 5 .20 1.35 Alpha 2 .07 Stream Power (lb/ ft s) 5 .57 49.84 3 .39 frctn Loss (ft) Cum Volume (acre-ft) c & E Loss (ft) Cum SA (acres) Warning: User specified water surface is not possible for the specified flow regime . The program used critical depth as the starting water surface . Warning: Divided flow computed for this cross-section. Exhibit E-1 18of18 EXHIBIT "E-2" HEC-RAS ANALYSIS EXISTING CONDITIONS (DETENTION UPSTREAM) EXHIBIT E-2 HEC-RAS ANALYSIS -PROPOSED CONDITIONS (DETENTION UPSTREAM) 0 HEC-RAS September 1998 Version 2.2 0 0 0 x x x x x x U.S. Army Corp of Engineers Hydrologic Engineering Center 609 Second Street, Suite D Davis, California 95616-4687 ( 916) 756-1104 xx xx xx xxxx xxxx x x x x x x x x x x x xx x x xxxxxxx xxxx x xxx xxxx xxxxxx x x x x x x x x x x xxxxxx xx xx PROJECT DATA Project Title: CSBC HEC-2 Analysis Project File csbc .prj x Run Date and Time: 11/11/99 11 :26:18 AM Project in English units PLAN DATA x x x x x x Plan Title: Proposed Conditions (Detention Upstream) Plan File f :\9708\Hec-2\csbc.p05 Geometry Title : Proposed Conditions Geometry File f :\9708\Hec-2\csbc.g02 x x x x x x xxxx x x xxxx xxxxx Flow Title Flow File Proposed Flow Data (Detention Upstream) f :\9708\Hec-2\csbc.f04 Plan Summary Information: Number of: Cross Sections Culverts Bridges 18 1 0 Mulitple Openings Inline Weirs Computational Information Water surface calculation tolerance Critical depth calculaton tolerance Maximum number of interations Maximum difference tolerance Flow tolerance factor Computation Options 0.01 0.01 20 0 .3 0 .001 Critical depth computed only where necessary 0 0 Conveyance Calculation Method: At breaks in n values only Friction Slope Method: Average Conveyance Computational Flow Regime : Subcritical Flow FLOW DATA x x Exhibit E-2 1 of20 Flow Title : Proposed Flow Data (Detention Upstream) Flow File f :\9708\Hec-2\csbc.f04 Flow Data ( cfs) River Reach RS lOyr Post Trib. of Alum CrAC-la 9430 Trib. of Alum CrAC-la 8674 Trib. of Alum CrAC-2 11019 Trib. of Alum CrAC-2 10455 Trib. of Alum CrAC-lb 8457 Trib. of Alum CrAC-lb 6900 Trib. of Alum CrAC-lb 5660 Trib. of Alum CrAC-lb 5154 Boundary Conditions River Reach Profile Trib. of Alum CrAC-lb lOyr Post 244 .5 Trib. of Alum CrAC-lb lOOyr Post 244 .5 GEOMETRY DATA Geometry Title : Proposed Conditions Geometry File : f :\9708\Hec-2\csbc.g02 Reach Connection Table River Reach Trib. of Alum Cr AC -la Trib. of Alum Cr AC -2 Trib. of Alum Cr AC -lb Upstream Boundary Junction 1 CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC-la INPUT Description: Station Elevation Data Sta Elev Sta 1000 280 1102 1174 274 1182 Manning's n Values Sta n Val Sta 1000 .085 1142 Bank Sta : Left 1142 Right 1174 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W. S. (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) onv. Total (cfs) RS : 9430 num= 10 Elev Sta Elev Sta 278 1125 276 1142 276 1216 278 1277 num= 3 n Val Sta n Val .055 1174 .085 Lengths: Left Channel Right 180 180 180 Profile #lOyr Post 275 .24 0.18 275 .06 0.006287 233 .00 45 .21 3.20 3.06 2938.5 Element Wt . n-Val . Reach Len . (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg . Vel. (ft/s) Hydr . Depth (ft) Conv. (cfs) 233 278 100 210 466 885 944 954 lOOyr Post 383 452 175 334 748 1380 1524 1529 Upstream Downstream Boundary Junction 1 Junction 1 Elev Sta 274 1163 278.5 1339 Coeff Contr . .1 Left OB 0.085 180 .00 4 .75 4.75 4.28 8 .98 0 .90 0.53 54 .0 Elev 272 279 Expan. . 3 Channel 0.055 180 .00 65 .82 65 .82 226 .74 32 .00 3 .44 2 .06 2859.5 Downstream Known WS Known WS Right OB 0 .085 180 .00 2 .23 2 .23 1. 98 4 .23 0 .89 0 .53 25.0 Exhibit E-2 2 of20 Length Wtd . (ft) 180.00 Wetted Per. (ft) 9 .04 32 .28 4 .36 Min Ch El (ft) 272.00 Shear (lb/sq ft) 0 .21 0 .80 0 .20 Alpha 1.13 Stream Power (lb/ ft s) 0 .19 2 .76 0 .18 Frctn Loss (ft) 2 .22 Cum Volume (acre-ft) 0 . 43 3 . 92 0 . 46 c & E Loss (ft) 0 .04 Cum SA (acres) 0 .27 1. 01 0 .34 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning : The energy loss was greater t han 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #100yr Post E.G. Elev (ft) 275.87 Element Left OB Channel Right OB Vel Head (ft) 0 .28 Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 275.59 Reach Len . (ft) 180.00 180.00 180.00 Crit W.S . (ft) Flow Area (sq ft) 10. 72 82 .81 5 .04 E .G. Slope (ft/ft) 0 .007484 Area (sq ft) 10. 72 82 .81 5 .04 Q Total (cfs) 383.00 Flow (cfs) 13.83 362 .76 6 . 41 Top Width (ft) 51. 85 Top Width (ft) 13.50 32 .00 6.35 Vel Total ( ft/s) 3 .89 Avg. Vel. (ft/s) 1. 29 4 .38 1. 27 Max Chl Dpth (ft) 3 .59 Hydr. Depth (ft) 0 . 7 9 2 .59 0 . 7 9 Conv. Total (cfs) 4427 .2 Conv. (cfs) 159 .9 4193 .3 74 .l Length Wtd . (ft) 180.00 Wetted Per. (ft) 13.59 32 .28 6 .55 Min Ch El (ft) 272.00 Shear (lb/sq ft) 0 .37 1. 20 0 .36 Alpha 1. 21 Stream Power (lb/ ft s) 0 . 48 5 .25 0 . 4 6 Fr ctn Loss (ft) 2 .14 Cum Volume (acre-ft) 0 .78 5 .11 0 .85 c & E Loss (ft) 0 .03 Cum SA (acres) 0 .39 1. 01 0 .51 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . CROSS SECTION RIVER : Trib . of Alum Cr REACH : AC-la RS : 9248 INPUT Description: Station Elevation Data num= 9 Sta Elev Sta Elev Sta Elev Sta 1000 278 1111 276 1161 274 1177 1204 272 1228 274 1271 276 1391 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1177 .055 1204 .085 Bank Sta : Left Right Lengths : Left Channel Right 1177 1204 257 260 264 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 272.98 Element Vel Head (ft) 0 .59 Wt. n-Val . w.s. Elev (ft) 272.39 Reach Len . (ft) Crit W.S . (ft) 272.33 Flow Area (sq ft) E .G. Slope (ft/ft) 0 .034106 Area (sq ft) Q Total (cfs) 233.00 Flow (cfs) Top Width (ft) 34 .79 Top Width (ft) Vel Total (ft/s) 5 .97 Avg. Vel. (ft/s) Max Chl Dpth (ft) 2 .39 Hydr . Depth (ft) Conv. Total (cfs) 1261 .7 Conv . (cfs) Length Wtd . (ft) 260.17 Wetted Per . (ft) Min Ch El (ft) 270.00 Shear (lb/sq ft) Alpha 1. 06 Stream Power (lb/ ft Frctn Loss (ft) 2 .67 Cum Volume (acre-ft) c & E Loss (ft) 0 .12 Cum SA (acres) Elev Sta 272 1188 277 Coe ff Contr. .1 Left OB 0 .085 257 .00 0 .61 0 .61 0 .66 3 .12 1. 08 0 .19 3 .5 3 .14 0 .41 s) 0.44 0 .42 0 .24 Elev 270 Expan. .3 Channel 0 .055 260.00 37 .52 37 .52 231 .36 27 .00 6 .17 1. 39 1252 .8 27.30 2 .93 18.04 3 . 71 0 .89 Right OB 0 .085 264 .00 0.91 0.91 0 .99 4 . 67 1. 08 0 .19 5 .3 4.69 0.41 0.45 0. 45 0.32 Exhibit E-2 3 of20 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile UOOyr Post E .G. Elev (ft) 273.70 Element Left OB Channel Ri ght OB Vel Head (ft) 0 .62 Wt. n-Val . 0 .085 0 .055 0.085 w.s. Elev (ft) 273.08 Reach Len . (ft) 257 .00 260.00 264 .00 Crit W.S. (ft) Flow Area (sq ft) 4 .69 56.25 7 . 04 E.G. Slope (ft/ ft) 0 .021766 Area (sq ft) 4 .69 56.25 7 . 04 Q Total (cfs) 383.00 Flow (cfs) 8 .00 362 .96 12. 04 Top Width (ft) 48.66 Top Width (ft) 8 .67 27 .00 13.00 Vel Total (ft/s) 5 .63 Avg . Vel . (ft/s) 1. 70 6 . 45 1. 71 Max Chl Dpth (ft) 3 .08 Hydr. Depth (ft) 0 .54 2 .08 0 .54 Conv. Total (cfs) 2596. 0 Conv. (cfs) 54 .2 2460 .2 81 .6 Length Wtd . (ft) 260.26 Wetted Per. (ft) 8 .73 27 .30 13 .04 Min Ch El (ft) 270.00 Shear (lb/sq ft) 0 .73 2 .80 0 . 73 Alpha 1 .25 Stream Power (lb/ ft s) 1 .25 18.06 1. 25 Frctn Loss (ft) 2 .76 Cum Volume (acre-ft) 0 .75 4 .82 0 .83 c & E Loss (ft) 0 .10 Cum SA (acres) 0 .35 0 .89 0 . 47 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections. Warni ng : The energy loss was greater than 1 .0 ft (0 .3 m). bet ween the current and previ ous cross section. This may indicate the need for additional cross sections . CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-la RS : 8982 INPUT Description: Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 274 1107 272 1130 270 1140 268 1150 266.5 1159 268 1182 270 1203 272 1214 274 1279 275 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1140 .055 1159 .085 Bank Sta : Left Right Lengths : Left Channel Right Coef f Contr. Expan . 1140 1159 302 302 302 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 270.19 Element Left OB Channel Right OB Vel Head (ft) 0 .18 Wt . n-Val . 0 .085 0 .055 0.085 w.s. Elev (ft) 270.01 Reach Len . (ft) 302 .00 302 .00 302.00 Crit W.S. (ft) Flow Area (sq ft) 10.08 52 . 40 23.19 E .G. Slope (ft/ft) 0 .004864 Area (sq ft) 10.08 52 . 40 23.19 Q Total (cfs) 233.00 Flow (cfs) 12.12 192.60 28 .28 Top Width (ft) 52 .18 Top Width (ft) 10.09 19. 00 23 .08 Vel Total ( ft/s) 2 .72 Avg . Vel . (ft/s) 1. 20 3 .68 1. 22 Max Chl Dpth (ft) 3 .51 Hydr. Depth (ft) 1. 00 2 .76 1. 00 Conv. Total (cfs) 3340.8 Conv. (cfs) 173. 8 2761 .5 405.5 Length Wtd . (ft) 302.00 Wetted Per . (ft) 10.29 19.24 23.17 Min Ch El (ft) 266.50 Shear (lb/sq ft) 0 .30 0 .83 0.30 Alpha 1. 54 Stream Power (lb/ ft s) 0 .36 3 .04 0.37 Frctn Loss (ft) 2 .76 Cum Volume (acre-ft) 0 .38 3 .44 0.38 c & E Loss (ft) 0 .03 Cum SA (acres) 0 .20 0 . 75 0 .24 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previ o us cross section. This may indicate the need for additional cross sections . Exhibit E-2 4 of 20 CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 270.84 Element Left OB Channel Right OB Vel Head (ft) 0 .27 Wt . n-Val. 0 .085 0 .055 0 .085 w.s . Elev (ft) 270.56 Reach Len . (ft) 302 .00 302 .00 302 .00 rit W.S . (ft) Flow Area (sq ft) 17 .47 62 . 97 37 . 64 E.G. Slope (ft/ft) 0 .006243 Area (sq ft) 17 . 47 62 . 97 37 .64 Q Total (cfs) 383.00 Flow (cfs) 24 .86 296 .32 61 .82 Top Width (ft) 64 .41 Top Width (ft) 16.49 19.00 28 .92 Vel Total (ft/s) 3 .24 Avg. Vel. (ft/s) 1. 42 4 .71 1. 64 Max Chl Dpth (ft) 4.06 Hydr. Depth (ft) 1. 06 3 .31 1. 30 Conv. Total (cfs) 4847 .3 Conv. (cfs) 314 .6 3750.3 782 .4 Length Wtd . (ft) 302 .00 Wetted Per. (ft) 16.71 19.24 29 .04 Min Ch El (ft) 266.50 Shear (lb/sq ft) 0.41 1. 28 0 .51 Alpha 1. 68 Stream Power (lb/ft s) 0.58 6 .00 0 .83 Frctn Loss (ft) 2 . 4 4 Cum Volume (acre-ft) 0 .68 4.47 0 .69 c & E Loss (ft) 0.01 Cum SA (acres) 0 .27 0 . 75 0 .34 Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-la RIVER : Trib. of Alum Cr RS: 8674 INPUT Description : Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta 1000 272 1079 270 1089 268 1095 1125 266 1131 268 1154 268 1200 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1095 .055 1125 .085 Bank Sta: Left Right Coe ff Contr. Expan . 1095 1125 .1 .3 CROSS SECTION OUTPUT Profile #10yr Post E.G. Elev (ft) 267 . 4 0 Element Vel Head (ft) 0 .44 Wt. n-Val. w.s. Elev (ft) 266.96 Reach Len. (ft) Crit W. S . (ft) Flow Area (sq ft) E.G. Slope (ft/ ft) 0 .019349 Area (sq ft) Q Total (cfs) 278 .00 Flow (cfs) Top Width (ft) 35.75 Top Width (ft) Vel Total ( ft/s) 5 .15 Avg . Vel . ( ft/s) Max Chl Dpth (ft) 2. 46 Hydr. Depth (ft) Conv. Total (cfs) 1998 .5 Conv. (cfs) Length Wtd . (ft) 209.00 Wetted Per. (ft) Min Ch El (ft) 264 .50 Shear (lb/sq ft) Alpha 1. 06 Stream Power (lb/ ft Frctn Loss (ft) 0 .05 Cum Volume (acre-ft) c & E Loss (ft) 0 .13 Cum SA (acres) Elev Sta Elev 266 1115 264 .5 270 1248 272 Left OB Channel Right OB 0 .085 0 .055 0 .085 209 .00 209 .00 209.00 1. 38 51 .23 1. 38 1. 38 51. 23 1. 38 1. 98 274 .05 1. 98 2 .87 30 .00 2 .87 1. 44 5 .35 1. 4 4 0 . 48 1. 71 0 . 4 8 14 .2 197 0 .1 14 .2 3 .03 30 .17 3 .03 0 .55 2 .05 0 .55 s) 0. 7 9 10.97 0 . 79 0.09 0 .93 0 .08 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 268 .39 Element Left OB Channel Right OB Vel Head (ft) 0 . 42 Wt. n-Val. 0 .085 0 .055 0 .085 w.s . Elev (ft) 267 . 96 Reach Len. (ft) 209.00 209 .00 209 .00 Crit W.S . (ft) Flow Area (sq ft) 5 . 7 9 81 . 42 5 . 7 9 E.G. Slope (ft/ ft) 0.010283 Area (sq ft) 5. 7 9 81 .42 5 . 7 9 Q Total (cfs) 452 .00 Flow (cfs) 9. 7 9 4 32 . 4 3 9 . 7 9 Top Width (ft) 41 .78 Top Width (ft) 5 . 89 30 .00 5 .89 Vel Total (ft/s) 4.86 Avg. Vel . (ft/s) 1. 69 5 .31 1. 69 Exhibit E-2 5 of20 Max Chl Dpth (ft) 3 . 46 Hydr. Depth (ft) 0 .98 2 . 71 0 .98 Conv. Total (cfs) 4457 .4 Conv. (cfs) 96 .5 4264 .4 96 . 5 Length Wtd . (ft) 209.00 Wetted Per. (ft) 6 .21 30 .17 6 .21 Min Ch El (ft) 264 .50 Shear (lb/sq ft) 0 .60 1. 73 0 .60 Alpha 1.15 Stream Power (lb/ft s) 1. 01 9 .20 1. 01 Frctn Loss (ft) 0 .05 Cum Volume (acre-ft) 0 .17 1. 24 0 .16 c & E Loss (ft) 0 .12 Cum SA (acres) Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-2 RIVER : Trib. of Alum Cr RS : 11019 INPUT Description : Station Elevation Sta Elev 1000 276 1196 270 Data Sta 1089 1209 1372 276 Manning 's n Values Sta n Val 1000 . 085 Sta 1196 Bank Sta: Left 1196 Right 1214 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S. (ft) E .G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= Elev 274 268 num= n Val .055 11 Sta 1133 1214 3 Sta 1214 Elev 275 270 n Val .085 Sta 1174 1237 Lengths : Left Channel Right 317 317 317 Profile #lOyr Post 270.48 Element 0 .50 Wt . n-Val . 269.97 Reach Len . (ft) 269.97 Flow Area (sq ft) 0 .047046 Area (sq ft) 100.00 Flow (cfs) 17.77 Top Width (ft) 5 . 70 Avg. Vel. ( ft/s) 1. 97 Hydr. Depth (ft) 4 61 . 0 Conv. (cfs) 317 .00 Wetted Per. (ft) 268.00 Shear (lb/sq ft) 1. 00 Stream Power (lb/ ft 1. 69 Cum Volume (acre-ft) 0 .14 Cum SA (acres) s) Elev 274 272 Sta 1190 1252 Coeff Contr. .1 Left OB 317 .00 0 .34 0 .18 Elev 272 274 Expan . .3 Channel 0 .055 317 .00 17 .55 17 .55 100.00 17 .77 5 . 70 0 .99 4 61 . 0 18.31 2 .82 16.04 3 .30 1. 03 Right OB 317 .00 0.43 0 .13 Warning : The energy equation could not be balanced within the specified number of iterations . The program selected the water surface that had the least amount of error between computed and assumed values. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning : During the standard step iterations, when the assumed water surface was set equal to critical depth, the calculated water surface came back below critical depth. This indicates that there is not a valid subcritical answer . The program defaulted to critical depth . CROSS SECTION OUTPUT E .G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Profile #lOOyr Post 271 .13 0 .67 270. 45 270. 45 0 .037945 175.00 24 .57 6.33 Element Wt . n-Val . Reach Len . (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg . Vel. (ft/s) Left OB 0 .085 317 .00 0 .31 0 .31 0 .38 1. 36 1. 22 Channel Right OB 0 .055 0 .085 317 . 00 317.00 26.15 1.18 26.15 1.18 173.13 1. 4 9 18.00 5.21 6.62 1 .26 Exhibit E-2 6 of20 Max Chl Dpth (ft) 2 . 45 Hydr . Depth (ft) 0.23 1. 45 0 .23 Conv . Total (cfs) 898 .4 Conv. (cfs) 1. 9 888 .8 7 .6 Length Wtd. (ft) Wetted Per . (ft) 1. 43 18.54 5 .23 Min Ch El (ft) 268 .00 Shear (lb/sq ft) 0 .51 3 .34 0.53 Alpha 1. 08 Stream Power (lb/ft s) 0 .62 22 .12 0 .67 Frctn Loss (ft) Cum Volume (acre-ft) 0 .64 4 . 32 0 .84 c & E Loss (ft) Cum SA (acres) 0 .26 1 .03 0 .22 Warning: The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations . Warning: The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-2 RS : 10703 INPUT Description : Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 275 1038 274 1109 272 1132 270 1156 268 1210 266.75 1222 268 1232 270 1286 270 .9 1359 272 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1156 .055 1222 .085 Bank Sta: Left Right Lengths : Left Channel Right Coe ff Contr. Expan . 1156 1222 250 238 220 .1 . 3 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 268 .55 Element Left OB Channel Right OB Vel Head (ft) 0 .03 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 268 .53 Reach Len. (ft) 250 .00 238 .00 220 .00 Crit W.S . (ft) Flow Area (sq ft) 1. 68 76 .14 0 . 70 E.G. Slope (ft/ft) 0 .001927 Area (sq ft) 1 .68 76 .14 0 . 70 Q Total (cfs) 100.00 Flow (cfs) 0 .53 99 .25 0 .22 Top Width (ft) 74 .99 Top Width (ft) 6 .34 66 .00 2 .64 Vel Total (ft/s) 1. 27 Avg . Vel . (ft/s) 0 .32 1 .30 0 .31 Max Chl Dpth (ft) 1. 78 Hydr. Depth (ft) 0 .26 1.15 0.26 Conv. Total (cfs) 2278 .0 Conv. (cfs) 12 .0 2260 .9 5 .0 Length Wtd . (ft) 229.87 Wetted Per. (ft) 6 .37 66 .08 2.70 Min Ch El (ft) 266.75 Shear (lb/sq ft) 0 .03 0.14 0 .03 Alpha 1. 04 Stream Power (lb/ ft s) 0 .01 0.18 0 .01 Frctn Loss (ft) 1. 26 Cum Volume (acre-ft) 0 .33 2 . 96 0 . 43 c & E Loss (ft) 0 .01 Cum SA (acres) 0 . 16 0 . 72 0 .12 Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E .G. Elev (ft) Vel Head (ft) w.s . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Profile #lOOyr Post 268. 97 0 .04 268 .93 0 .002149 175.00 81 .73 1. 60 2 .18 3775.0 230.44 266. 7 5 Element Wt. n-Val. Reach Len . (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg . Vel. (ft/s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb/sq ft) Left OB 0.085 250.00 5 .14 5 .14 2 . 4 8 11.10 0 . 48 0 . 46 53 .6 11.14 0.06 Channel Right OB 0 .055 0 .085 238.00 220.00 102.31 2 .14 102.31 2 .14 171.49 1. 02 66 .00 4 .63 1 .68 0 . 48 1. 55 0 . 4 6 3699.4 22 .1 66 .08 4 .72 0 .21 0 .06 Exhibit E-2 7 of 20 Alpha Frctn Loss (ft) C & E Loss (ft) 1. 08 0 . 70 0.00 Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) 0 .03 0 .62 0 .21 0 .35 3 .85 o. 72 0 .03 0 .83 0 .19 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-2 INPUT Description: RIVER : Trib. of Alum Cr RS : 10455 Station Elevation Data num= 12 Sta Elev 1000 272 1110 266 1182 268 Manning 's n Values Sta n Val 1000 . 085 Sta Elev 1060 270 1118 266 .3 1219 270 num= Sta n Val 1100 . 055 Sta 1080 1125 3 Sta 1110 Elev 268 266 n Val .085 Sta 1100 1146 Bank Sta : Left 1100 Right 1110 Coeff Contr. .1 Expan . . 3 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W. S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile #lOyr 267 .29 0 .10 267 .19 0 . 011998 210 .00 87 . 38 2 .25 1. 69 1917 .2 228 .00 265 .50 1. 30 0 .05 0 .03 Post Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel . (ft/s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb/sq ft) Stream Power (lb/ft Cum Volume (acre-ft) Cum SA (acres) Elev Sta Elev 266 1103 265.5 265.9 1166 266 Left OB Channel Right OB 0 .085 0 .055 0 .085 228.00 228.00 228 .00 7.05 14 .38 71. 94 7.05 14 .38 71. 94 9.51 53.97 146 .52 11 . 88 10.00 65 .50 1.35 3 .75 2 .04 0.59 1. 4 4 1.10 86.8 4 92 . 7 1337 .7 11. 93 10.06 65 .59 0 . 44 1. 07 0 .82 s) 0 .60 4 .02 1. 67 0.12 0 .92 0 .27 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 268 .27 Element Left OB Channel Right OB Vel Head (ft) 0 .06 Wt. n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 268 .21 Reach Len. (ft) 228 .00 228 .00 228 .00 Crit W.S . (ft) Flow Area (sq ft) 24 .42 24 .60 143.32 E.G. Slope (ft/ft) 0 .003709 Area (sq ft) 24 .42 24 .60 143.32 Q Total (cfs) 334 .00 Flow (cfs) 27 .69 7 3 . 46 232 .84 Top Width (ft) 107 .98 Top Width (ft) 22.10 10 .00 75 .88 Vel Total (ft/s) 1. 7 4 Avg. Vel . ( ft/s) 1.13 2 .99 1. 62 Max Chl Dpth (ft) 2 . 71 Hydr. Depth (ft) 1.10 2 . 4 6 1. 89 Conv . Total (cfs) 5484 .2 Conv. (cfs) 454 .7 1206 .2 3823.2 Length Wtd . (ft) 228 .00 Wetted Per. (ft) 22.21 10 .06 76 .02 Min Ch El (ft) 265 .50 Shear (lb/sq ft) 0 .25 0 .57 0 .44 Alpha 1.30 Stream Power (lb/ft s) 0.29 1. 69 0 .71 Frctn Loss (ft) 0 .05 Cum Volume (acre-ft) 0 .23 1.20 0 .53 c & E Loss (ft) 0 .02 Cum SA (acres) Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . CROSS SECTION RIVER: Trib. of Alum Cr Exhibit E-2 8 of20 REACH : AC -lb RS : 8457 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 268 1034 266 1062 264 1095 263 1127 264 1175 265 1203 264 1232 262 .5 1260 264 1282 266 1321 268 1398 270 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1062 .055 1260 .085 Bank Sta : Left Right Lengths : Left Channel Right Coef f Contr . Expan . 1062 1260 75 85 145 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Post E .G. Elev (ft) 267 .21 Element Left OB Channel Right OB Vel Head (ft) 0 .01 Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 267 .21 Reach Len . (ft) 75.00 85.00 145.00 Crit W.S . (ft) Flow Area (sq ft) 74 .10 671 . 93 62.69 E.G. Slope (ft/ft) 0 .000112 Area (sq ft) 74 .10 671 .93 62.69 Q Total (cfs) 466.00 Flow (cfs) 18 .16 433 .51 14 .33 Top Width (ft) 292. 00 Top Width (ft) 48 .49 198.00 45.51 Vel Total (ft/s) 0 .58 Avg . Vel . (ft/s) 0 .25 0 .65 0 .23 Max Chl Dpth (ft) 4 .71 Hydr. Depth (ft) 1. 53 3 .39 1. 38 Conv. Total (cfs) 44046.1 Conv. (cfs) 1716.2 40975 . 6 1354.3 Length Wtd. (ft) 86.43 Wetted Per. (ft) 48.60 198 .14 45.63 Min Ch El (ft) 262.50 Shear (lb/sq ft) 0 .01 0 .02 0 .01 Alpha 1.18 Stream Power (lb/ ft s) 0 .00 0 .02 0 .00 Frctn Loss (ft) 0 .01 Cum Volume (acre-ft) 15.53 6 .56 2 .74 c & E Loss (ft) 0 .00 Cum SA (acres) 15.16 1. 63 2 .61 CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 268.21 Element Left OB Channel Right OB Vel Head (ft) 0 .01 Wt . n -Val. 0 .085 0 .055 0 .085 w.s. Elev (ft) 268.20 Reach Len . (ft) 75.00 85.00 145.00 Crit W.S . (ft) Flow Area (sq ft) 130.32 868 .60 117 . 88 E .G. Slope (ft/ft) 0 .000116 Area (sq ft) 130.32 868 .60 117 . 88 Q Total (cfs) 748.00 Flow (cfs) 40.07 676.18 31. 74 Top Width (ft) 328.65 Top Width (ft) 62 .00 198.00 68.65 Vel Total (ft/s) 0 .67 Avg . Vel . (ft/s) 0 .31 0 .78 0 .27 Max Chl Dpth (ft) 5 . 70 Hydr . Depth (ft) 2 .10 4 .39 1. 72 Conv. Total (cfs) 69533.7 Conv . (cfs) 3725.2 62857. 6 2950.9 Length Wtd . (ft) 87 .29 Wetted Per. (ft) 62 .33 198.14 68 .80 Min Ch El (ft) 262.50 Shear (lb/sq ft) 0 .02 0 .03 0 .01 Alpha 1 .24 Stream Power (lb/ ft s) 0 .00 0 .02 0 .00 Frctn Loss (ft) 0 .01 Cum Volume (acre-ft) 23. 4 7 7 .56 4 . 31 c & E Loss (ft) 0 .00 Cum SA (acres) 17 .35 1 . 64 3.57 Warning : The cross-section end points had to be extended vertically for the computed water surface . CROSS SECTION REACH : AC -lb INPUT Description: Station Elevation Sta Elev 0 270 416 261 644 270 Manning's n Values Sta n Val 0 . 085 RIVER: Trib. of Alum Cr RS : 8291 Data Sta 148 424 num= Elev 268 262 num= Sta n Val 381 . 055 11 Sta 212 436 3 Sta 424 Elev 266 264 n Val .085 Sta 355 459 Elev 264 266 Sta 381 544 Elev 262 268 Exhibit E-2 9 of20 Bank Sta : Left Right Lengths : Left Channel Right Coef f Contr. Expan. 381 424 58 58 58 .1 .3 CROSS SECTION OUTPUT Profile HlOyr Post E.G. Elev (ft) 267 .20 Element Left OB Channel Right OB Vel Head (ft) 0 .01 Wt. n-Val. 0 .085 0 .055 0 .085 w.s . Elev (ft) 267 . 19 Reach Len . (ft) 58.00 58 .00 58 .00 Crit W.S . (ft) Flow Area (sq ft) 444 .43 244 .60 130. 60 E.G . Slope (ft/ ft) 0 .000159 Area (sq ft) 444 .43 244 .60 130 .60 Q Total (cfs) 466 .00 Flow (cfs) 162 .87 265 .05 38 .08 Top Width (ft) 335 .53 Top Width (ft) 207 .03 43 .00 85 .51 Vel Total ( ft/s) 0 .57 Avg . Vel . (ft/s) 0.37 1. 08 0 .29 Max Chl Dpth (ft) 6 .19 Hydr . Depth (ft) 2.15 5 .69 1. 53 Conv. Total (cfs) 36978.8 Conv. (cfs) 12924 .3 21032.8 3021.8 Length Wtd. (ft) 58 .00 Wetted Per. (ft) 207.14 43 .08 85 .77 Min Ch El (ft) 261.00 Shear (lb/sq ft) 0.02 0 .06 0 .02 Alpha 2 .23 Stream Power (lb/ft s) 0.01 0 .06 0 .00 Fr ctn Loss (ft) 0 .01 Cum Volume (acre-ft) 15.09 5 .67 2 .42 c & E Loss (ft) 0.00 Cum SA (acres) 14 .94 1. 40 2 .39 CROSS SECTION OUTPUT Profile #lOOyr Post E.G . Elev (ft) 268 .19 Element Left OB Channel Right OB Vel Head (ft) 0.01 Wt. n-Val . 0.085 0 .055 0 .085 w.s . Elev (ft) 268 .18 Reach Len . (ft) 58 .00 58 .00 58 .00 Crit W.S . (ft) Flow Area (sq ft) 666.33 287 .27 236 .51 E.G. Slope (ft/ft) 0.000177 Area (sq ft) 666.33 287 .27 236 .51 Q Total (cfs) 748.00 Flow (cfs) 300 .39 365.43 82 .17 Top Width (ft) 418 .42 Top Width (ft) 246.38 43 .00 129 .04 Vel Total (ft/s) 0.63 Avg . Vel. (ft/s) 0. 45 1. 27 0 .35 Max Chl Dpth (ft) 7.18 Hydr . Depth (ft) 2.70 6.68 1. 83 Conv. Total (cfs) 56285.0 Conv . (cfs) 22603.8 27497 .8 6183.4 Length Wtd . (ft) 58 .00 Wetted Per . (ft) 246 .50 43 .08 129 .32 Min Ch El (ft) 261 .00 Shear (lb/sq ft) 0.03 0.07 0 .02 Alpha 2.24 Stream Power (lb/ft s) 0.01 0.09 0 .01 Frctn Loss (ft) 0.03 Cum Volume (acre-ft) 22.79 6 . 43 3 . 72 c & E Loss (ft) 0 .25 Cum SA (acres) 17 .09 1. 41 3 .24 Warning: The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4 . This may indicate the need for additional cross sections. CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb RS : 8225 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev 137 270 307 268 507 266 582 260 .5 594 260 .5 610 262 691 267 729 268 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 137 .085 552 .055 610 .085 Bank Sta : Left Right Lengths: Left Channel 552 610 116 116 Ineffective Flow num= 2 Sta L Sta R Elev Sta L Sta R Elev 137 582 266.75 594 729 266.75 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 267 .19 Element Sta 537 635 Right 116 Elev Sta 264 552 265 665 Coeff Contr. . 3 Left OB Elev 262 266 Expan. .5 Channel Right OB Exhibit E-2 10 of20 Vel Head (ft) 0 .01 Wt. n-Val . 0 .085 0 .055 0.085 w.s. Elev (ft) 267 .18 Reach Len . (ft) 116.00 116.00 116.00 Crit W.S. (ft) 264 .09 Flow Area (sq ft) 197 .20 352 .76 160. 42 E .G. Slope (ft/ft) 0 .000137 Area (sq ft) 197 .20 352 .76 160.42 Q Total (cfs) 466.00 Flow (cfs) 45.83 371.17 49 .00 Top Width (ft) 308.40 Top Width (ft) 162.68 58 .00 87 .72 Vel Total (ft/s) 0 .66 Avg . Vel . (ft/s) 0 .23 1.05 0 .31 Max Chl Dpth (ft) 6 .68 Hydr. Depth (ft) 1. 21 6 .08 1. 83 Conv. Total (cfs) 39817 .8 Conv. (cfs) 3916 .0 31715.1 4186.8 Length Wtd . (ft) 116 . 00 Wetted Per . (ft) 162.89 58 .11 87 . 94 Min Ch El (ft) 260 .50 Shear (lb/sq ft) 0 .01 0.05 0.02 Alpha 2.08 Stream Power (lb/ft s) 0.00 0.05 0.00 Frctn Loss (ft) Cum Volume (acre-ft) 14 .66 5 .27 2 .23 c & E Loss (ft) Cum SA (acres) 14 .69 1. 33 2.28 CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 267 .91 Element Left OB Channel Right OB Vel Head (ft) 2. 4 9 Wt . n-Val . 0 .055 w.s. Elev (ft) 265 .43 Reach Len . (ft) 116. 00 116.00 116.00 Crit W.S. (ft) 265 .43 Flow Area (sq ft) 59.12 E.G. Slope (ft/ ft) 0.026159 Area (sq ft) 51.67 251. 26 50.90 Q Total (cfs) 748 .00 Flow (cfs) 748.00 Top Width (ft) 132 .21 Top Width (ft) 36 . 40 58 .00 37 .80 Vel Total (ft/s) 12 .65 Avg. Vel . (ft/s) 12.65 Max Chl Dpth (ft) 4 .93 Hydr. Depth I ft l 4.93 Conv. Total (cfs) 4624 .8 Conv. (cfs) 4624 .8 Length Wtd. (ft) 116 .00 Wetted Per . (ft) 12 .00 Min Ch El (ft) 260 .50 Shear (lb/sq ft) 8.05 Alpha 1. 00 Stream Power (lb/ ft s) 101 .80 Frctn Loss (ft) Cum Volume (acre-ft) 22 .31 6 .07 3 .53 c & E Loss I ft l Cum SA (acres) 16 .90 1. 34 3 .13 Warning: During subcritical analysis , the water surface upstream of culvert went to critical depth. CULVERT REACH : AC-lb RIVER: Trib. of Alum Cr RS : 8151 INPUT Description: Existing Dual 5 'x4 ' RCBC Distance from Upstream XS 20 Deck/Roadway Width 65 Weir Coefficient 2.6 Bridge Deck/Roadway Skew Upstream Deck/Roadway Coordinates num= 14 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 0 270.25 173 268 .25 469 267 .16 530 266 .85 582 266.69 594 266 .69 673 267.53 687 267 .75 733 268 .25 787 270 .25 Upstream Bridge Cross Section Data Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev 137 270 307 268 507 266 582 260 .5 594 260 .5 610 262 691 267 729 268 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 137 .085 552 .055 610 .085 Bank Sta : Left Right Coef f Contr . Expan . 552 610 .3 . 5 Ineffective Flow num= 2 Sta L Sta R Elev Sta L Sta R Elev 137 582 266.75 594 729 266.75 Sta Hi Cord 340 267 .25 575 266.75 663 267 .26 727 268 Sta Elev 537 264 635 265 Lo Cord Sta 552 665 Elev 262 266 Exhibit E-2 11 of20 Downstream Deck/Roadway Coordinates num= 14 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 0 270.25 173 268 .25 340 267 .25 469 267 .16 530 266 .85 575 266 .75 582 266.69 594 266 .69 663 267 .26 673 267 .53 687 267 .75 727 268 733 268 .25 787 270 .25 Downstream Bridge Cross Section Data Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta 0 270 17 3 268 340 266 469 264 530 575 260 582 258 .31 594 258 .31 663 262 673 716 268 7 91 270 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 .085 575 .055 663 .085 Bank Sta : Left Right Coe ff Contr. Expan . 575 663 .3 .5 Ineffective Flow num= 2 Sta L Sta R Elev Sta L Sta R Elev 0 582 266 .75 594 7 91 266 .75 Upstream Embankment side slope Downstream Embankment side slope Maximum allowable submergence for weir flow Elevation at which weir flow begins 0 horiz . to 1 .0 vertical 0 horiz . to 1 .0 vertical .95 Energy head used in spillway design Spillway height used in design Weir crest shape Number of Culverts 1 Culvert Name Shape Rise Span Culvert #1 Box 4 5 Broad Crested FHWA Chart # 10-90 degree headwall; Chamfered FHWA Scale # 1 -Inlet edges chamfered 3/4 inch or beveled inlet Solution Criteria = Highest U.S. EG Culvert Upstrm Dist Length n Value Entrance Loss Coef . 5 0 116 .014 Number of Barrels = 2 Upstream Centerline Sta . 584 .5 Downstream Centerline Sta . 584 .5 Elevation Stations Sta. 591 .5 Elevation Stations Sta. 591 .5 260.5 258.31 CULVERT OUTPUT Profile #lOyr Post Culvert ID : Culvert #1 Culv Q (cfs) 387 .88 Culv Vel In (ft/s) # Barrels 2 Culv Vel Out (ft/s) Q Barrel (cfs) 193 .94 Culv Inv El Up (ft) E .G. us . (ft) 267 .19 Culv Inv El Dn (ft) w.s . us . (ft) 267 .18 Culv Frctn Ls (ft) Delta EG (ft) 3 .47 Culv Ext Lss (ft) Delta WS (ft) 5 .24 Culv Ent Lss (ft) E.G. IC (ft) 267 .19 Q Weir (cfs) E .G. oc (ft) 266 .80 Weir Sta Lf t (ft) Culvert Control Inlet Weir Sta Rgt (ft) Culv WS In (ft) 264 .50 Weir Submerg Culv WS Out (ft) 260 .75 Weir Max Depth (ft) Culv Nml Depth (ft) 2 .34 Weir Avg Depth (ft) Culv Crt Depth (ft) 3 .60 Wr Flw Area (sq ft) Exit Loss Coef 1 9.70 15.90 260 .50 258 .31 1. 78 0 . 96 0 . 73 78 .12 425 .13 654 .60 0 .00 0 .50 0 .24 54 . 04 Elev 262 264 Exhibit E-2 12 of20 Culv Ful Lngh (ft) Min Top Rd (ft) 266 .69 Note: The flow in the culvert is entirely supercritical . CULVERT OUTPUT Profile #lOOyr Post Culvert ID : Culvert #1 Culv Q (cf s) 406 .65 Culv Vel In (ft/s) 10.17 H Barrels 2 Culv Vel Out (ft/s) 10.17 Q Barrel (cfs) 203 .32 Culv Inv El Up (ft) 260.50 E.G. us . (ft) 267 .91 Culv Inv El On (ft) 258 .31 w.s. us . (ft) 265 .43 Culv Frctn Ls (ft) 0 .92 Delta EG (ft) 2 .19 Culv Ext Lss (ft) Delta WS (ft) 2 .17 Culv Ent Lss (ft) 0 .80 E .G. IC (ft) 267 .54 Q Weir (cfs) 341. 35 E.G. oc (ft) 267 . 4 5 Weir Sta Lf t (ft) 348 .56 Culvert Control Outlet Weir Sta Rgt (ft) 676. 4 6 Culv WS In (ft) 264 .50 Weir Submerg 0 .00 Culv WS Out (ft) 262 .31 Weir Max Depth (ft) 0 .89 Culv Nml Depth (ft) 2 . 43 Weir Avg Depth (ft) 0 .52 Culv Crt Depth (ft) 3 .72 Wr Flw Area (sq ft) 171.28 Culv Ful Lngh (ft) 116. 00 Min Top Rd (ft) 266.69 Warning : Note : During subcritical analysis, the water surface upstream of culvert went to critical depth . During the supercritical calculations a hydraulic jump occurred inside of the culvert . Note: The culvert inlet is submerged and the culvert flows full over part or all of its length. Therefore, the culvert inlet equations are not valid and the supercritical result has been discarded . The outlet answer will be used . CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb RS : 8077 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta 0 270 173 268 340 266 469 575 260 582 258 .31 594 258 .31 663 716 268 7 91 270 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 .085 575 .055 663 .085 Bank Sta : Left Right Lengths : Left Channel Right 575 663 78 87 82 Ineffective Flow num= 2 Sta L Sta R Elev Sta L Sta R Elev 0 582 266.75 594 7 91 266 .75 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 263.72 Element Vel Head (ft) 1. 78 Wt. n-Val . w.s. Elev (ft) 261 .93 Reach Len. (ft) Crit W.S . (ft) 261 .90 Flow Area (sq ft) E .G. Slope (ft/ft) 0 .028278 Area (sq ft) Q Total (cfs) 466 .00 Flow (cfs) Top Width (ft) 130.25 Top Width (ft) Vel Total (ft/s) 10.72 Avg. Vel . (ft/s) Max Chl Dpth (ft) 3 .62 Hydr. Depth (ft) onv . Total (cfs) 2771.1 Conv. (cfs) Length Wtd . (ft) 86.16 Wetted Per. (ft) Min Ch El (ft) 258 .31 Shear (lb/sq ft) Alpha 1. 00 Stream Power (lb/ft Frctn Loss (ft) 0 .52 Cum Volume (acre-ft) c & E Loss (ft) 0.83 Cum SA (acres) Elev Sta 264 530 262 673 Coef f Contr. .3 Left OB 78 .00 42 .05 43 .50 s) 14 .34 14 .42 Elev 262 264 Expan . . 5 Channel 0 .055 87 .00 43.48 185.67 466.00 86.75 10.72 3 .62 2771 .1 12 .00 6. 4 0 68 .56 4 . 55 1.14 Right OB 82 .00 2 .02 2 .16 Exhibit E-2 13 of20 Warning : The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S. (ft) E .G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha frctn Loss (ft) C & E Loss (ft) Profile #lOOyr Post 265.72 Element 2 .47 Wt . n-Val . 263.25 Reach Len . (ft) 263.25 flow Area (sq ft) 0 .025847 Area (sq ft) 748.00 flow (cfs) 177 .54 Top Width (ft) 12.61 Avg . Vel . (ft/s) 4. 94 Hydr . Depth (ft) 4652.6 Conv. (cfs) 85. 72 Wetted Per . (ft) 258.31 Shear (lb/sq ft) 1. 00 Stream Power (lb/ ft 0. 46 Cum Volume (acre-ft) 1.17 Cum SA (acres) s) Left OB 78 .00 125.46 83.26 22 .07 16.74 Channel 0.055 87 .00 59.33 301 .90 748 .00 88.00 12.61 4. 94 4652 .6 12.00 7 . 98 100.58 5 .34 1.15 Right OB 82.00 3.93 6.27 3 . 45 3.07 Warning : The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations. Warning : The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning : During the standard step iterations, when the assumed water surface was set equal to critical depth, the calculat ed water surface came back below critical depth. This indicates Note: valid, that there is not a valid subcritical answer . The program defaulted to critical depth . Multiple critical depths were found at this location. The critical depth with the lowest, energy was used . CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb INPUT Description : Station Elevation Data Sta Elev Sta 0 270 168 676 260 690 750 267 766 Manning 's n Values Sta n Val Sta 0 .085 676 Bank Sta : Left 676 Right 708 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S. Elev (ft) Crit W.S. (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/ s) Max Chl Dpth (ft) RS : 7985 num= 13 Elev Sta Elev Sta 268 307 266 4 91 257 .3 708 260 734 268 785 269 num= 3 n Val Sta n Val .055 708 .085 Lengths : Left Channel Right 90 90 90 Profile #lOyr Post 262 .36 0 .13 262 .24 0.002558 466 .00 134 .36 2 .08 4 . 94 Element Wt. n-Val . Reach Len . (ft) flow Area (sq ft) Area (sq ft) flow (cfs) Top Width (ft) Avg. Vel. (ft/s) Hydr . Depth (ft) Elev Sta 264 615 262 741 Coeff Contr. .3 Left OB 0 .085 90 .00 77 .33 77 .33 69.27 75 .80 0.90 1. 02 Elev 262 265 Expan. .5 Channel 0 .055 90 .00 114 . 84 114 .84 364 .34 32 .00 3 .17 3 .59 Right OB 0 .085 90 .00 32 .27 32 .27 32 .39 26 .56 1. 00 1. 22 Exhibit E-2 14 of20 Conv . Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha Frctn Loss (ft) c & E Loss (ft) CROSS SECTION OUTPUT E .G. Elev (ft) Vel Head (ft) w.s. Elev (ft) Crit W.S. (ft) E .G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha Frctn Loss c & E Loss CROSS SECTION REACH : AC-lb INPUT Description: (ft) (ft) 9213 .8 Conv. (cfs) 90 .00 Wetted Per. (ft) 257 .30 Shear (lb/sq ft) 1. 87 Stream Power (lb/ft 0 .22 Cum Volume (acre-ft ) 0 .01 Cum SA (acres) Profile fflOOyr Post 263.28 Element 0 .13 Wt . n-Val . 263.15 Reach Len . (ft) Flow Area (sq ft) 0 .002280 Area (sq ft) 748.00 Flow (cfs) 192.92 Top Width (ft) 2.00 Avg . Vel . (ft/s) 5.85 Hydr . Depth (ft) 15665.8 Conv. (cfs ) 90.00 Wetted Per . (ft) 257 .30 Shear (lb/sq ft) 2.13 Stream Power (lb/ft 0 .23 Cum Volume (acre-ft ) 0 .03 Cum SA (acres) RIVER: Trib. of Alum Cr RS : 7895 Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta 0 270 78 268 183 266 381 585 260 598 258 611 256 . 42 615 630 262 647 264 672 . 37 266 693.27 Manning 's n Values Sta n Val 0 . 085 num= Sta n Val 585 . 055 Bank Sta: Left Right Lengths : 585 622 3 Sta 622 Left 85 n Val .085 Channel 85 Right 85 CROSS SECTION OUTPUT Pr o f ile #lOyr Post E.G. Elev (ft) 262 .14 Element Vel Head (ft) 0 .15 Wt. n-Val . w.s . Elev (ft) 261 .99 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .002356 Area (sq ft) Q Total (cfs) 466 .00 Flow (cfs) Top Width (ft) 62 .85 Top Width (ft) Vel Total (ft/s) 2 .80 Avg. Vel . (ft/s) Max Chl Dpth (ft) 5 .57 Hydr. Depth (ft) Conv. Total (cfs) 9601 .5 Conv. (cfs) Length Wtd. (ft) 85 .00 Wetted Per. (ft) Min Ch E:l (ft) 256 . 4 2 Shear (lb/sq ft) Alpha 1. 22 Stream Power (lb/ ft Frctn Loss (ft) 0 .28 Cum Volume (acre-ft) c & E Loss (ft) 0 .01 Cum SA (acres) 1369.5 7203 .8 640.5 75 .84 32 . 46 26 .68 0 .16 0 .56 0 .19 s) 0 .15 1. 79 0 .19 14 .23 4 .25 1. 99 14 .31 1.02 2 .14 Left OB Channel Right OB 0 .085 0 .055 0.085 90 .00 90.00 90.00 172.03 143.97 57 .42 172.03 143.97 57 . 42 171 .07 501 .35 75.58 132.24 32.00 28 .68 0 .99 3 . 4 8 1. 32 1. 30 4.50 2.00 3582 .8 10500.2 1582.8 132. 28 32. 46 28.99 0.19 0 .63 0.28 s) 0.18 2 .20 0 .37 21 .81 4.89 3 . 40 16.55 1 .03 3 .04 Elev Sta Elev 264 567 262 258 622 260 268 718 . 98 269 Coe ff Contr. Expan . .1 .3 Left OB Channel Ri ght OB 0 .085 0 .055 0 .085 85 .00 85 .00 85 .00 17 .79 141 .00 7 . 91 17 .79 141.00 7 . 91 14 .98 444 .47 6 .55 17.90 37 .00 7 .95 0 .84 3 .15 0 .83 0.99 3 .81 0 .99 308.6 9158 .0 135 .0 18 .01 37 .83 8 .20 0 .15 0 .55 0 .14 s ) 0.12 1. 73 0 .12 14 .13 3 .99 1. 94 14 .21 0 .95 2 .10 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) i s less than 0 .7 or greater than 1.4 . This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) Profile #lOOyr Post 263 .02 0 .23 Element Wt . n-Val . Left OB 0 .085 Channel 0 .055 Right OB 0 .085 Exhibit E-2 15 of20 w.s . Elev (ft) 262 .79 Reach Len . (ft) 85.00 85 .00 85 .00 Crit w.s . (ft) Flow Area (sq ft) 60.97 170 .55 16 .93 E.G. Slope (ft/ ft) 0.002977 Area (sq ft) 60.97 170.55 16 .93 Q Total (cfs) 748 .00 Flow (cfs) 44 .42 686 .06 17 .52 Top Width (ft) 142 .88 Top Width (ft) 91.19 37 .00 14 .69 Vel Total (ft/s) 3 .01 Avg. Vel . (ft/s) 0. 73 4.02 1. 03 Max Chl Dpth (ft) 6.37 Hydr. Depth (ft) 0.67 4 . 61 1.15 Conv. Total (cfs) 13709.9 Conv. (cfs) 814 .2 12574 .7 321 .0 Length Wtd . (ft) 85 .00 Wetted Per. (ft) 91 .31 37 .83 14 .98 Min Ch El (ft) 256 .42 Shear (lb/sq ft) 0.12 0.84 0 .21 Alpha 1. 64 Stream Power (lb/ ft s) 0.09 3 . 37 0 .22 Frctn Loss (ft) 0 .31 Cum Volume (acre-ft) 21. 57 4 . 57 3 .32 c & E Loss (ft) 0 .01 Cum SA (acres) 16.32 0 .96 2 .99 CROSS SECTION RIVER: Trib . of Alum Cr REACH : AC-lb RS : 7811 INPUT Description : Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 265.12 1204 .52 259 .67 1213.67 255.6 1216.67 255 .6 1217 .66 258 .13 1229.86 260.17 1245.36 260 1251. 36 263 .82 1282.23 264.39 1306.3 267 1337 . 07 268 1363.78 268.5 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1204 .52 .055 1217 .66 .085 Bank Sta: Left Right Lengths : Left Channel Right Coef f Contr. Expan . 1204 .52 1217.66 850 850 850 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 261. 85 Element Left OB Channel Right OB Vel Head (ft) 0 .21 Wt . n-Val. 0 .085 0 .055 0 .085 w.s. Elev (ft) 261 .64 Reach Len. (ft) 850 .00 850.00 850.00 Crit W.S . (ft) Flow Area (sq ft) 72 .95 59 .52 56.65 E.G. Slope (ft/ft) 0 .004911 Area (sq ft) 72.95 59.52 56.65 Q Total (cfs) 466.00 Flow (cfs) 88 .51 273 .60 103.89 Top Width (ft) 117 .41 Top Width (ft) 73.99 13 .14 30.28 Vel Total (ft/s) 2 . 46 Avg. Vel . (ft/s) 1. 21 4 .60 1. 83 Max Chl Dpth (ft) 6 .04 Hydr. Depth (ft) 0 .99 4 . 53 1. 87 Conv . Total (cfs) 6649 .4 Conv. (cfs) 1262 .9 3904 .l 1482 .4 Length Wtd . (ft) 850.00 Wetted Per. (ft) 74.02 15.73 30 .93 Min Ch El (ft) 255 .60 Shear (lb/sq ft) 0 .30 1.16 0 .56 Alpha 2 .21 Stream Power (lb/ ft s) 0.37 5 .33 1. 03 Frctn Loss (ft) 4 .17 Cum Volume (acre-ft) 14 .05 3 . 79 1. 88 c & E Loss (ft) 0 .01 Cum SA (acres) 14 .12 0 .90 2 .06 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd . (ft) Min Ch El (ft) Profile #lOOyr Post 262 .70 Element 0 .20 Wt . n-Val . 262 .50 Reach Len. (ft) Flow Area (sq ft) 0 .004404 Area (sq ft) 748 .00 Flow (cfs) 151.13 Top Width (ft) 2 .45 Avg. Vel. (ft/s) 6 .90 Hydr. Depth (ft) 11271. 5 Conv. (cfs) 850.00 Wetted Per. (ft) 255 .60 Shear (lb/sq ft) Left OB Channel Right OB 0 .085 0 .055 0 .085 850.00 850 .00 850.00 150.72 70 .85 83 .34 150 .72 70 .85 83.34 220.55 3 46.4 2 181. 03 106 .36 13 .14 31 .63 1. 46 4 .89 2 .17 1. 42 5 .39 2 .63 3323 .5 5220 .1 2727 .9 106 .40 15 .73 32.53 0 .39 1. 24 0 . 70 Exhibit E-2 16 of20 Alpha Frctn Loss (ft) c & E Loss (ft) 2 .13 4 . 57 0 .00 Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) 0 .57 21 .36 16 .12 6 .05 4 .33 0 .91 1 .53 3 .2 2 2 .95 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-lb RIVER: Trib . of Alum Cr RS : 6900 INPUT Description : Station Elevation Data num= 11 Sta Elev Sta Elev Sta Elev Sta 797 260 918 258 1000 257 .12 1227 .24 1269.82 255.13 1277 .72 250 .75 1288.22 254 .99 1312.83 1503.58 262.6 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 797 .085 1269.82 .055 1288 .22 .085 Bank Sta: Left Right Lengths : Left Channel Right 1269 .82 1288.22 825 800 775 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 257 .68 Element Vel Head (ft) 0 .19 Wt . n-Val . w.s . Elev (ft) 257 . 4 9 Reach Len. (ft) Crit W.S . (ft) 256 .92 Flow Area (sq ft) E.G. Slope (ft/ft) 0 .004897 Area (sq ft) Q Total (cfs) 885.00 Flow (cfs) Top Width (ft) 342 .63 Top Width (ft) Vel Total (ft/s) 1. 99 Avg. Vel . ( ft/s) Max Chl Dpth (ft) 6 .74 Hydr. Depth (ft) Conv . Total (cfs) 12647 . 0 Conv. (cfs) Length Wtd. (ft) 812 .92 Wetted Per. (ft) Min Ch El (ft) 250 .75 Shear (lb/sq ft) Alpha 3 .03 Stream Power (lb/ft Frctn Loss (ft) 6.61 Cum Volume (acre-ft) c & E Loss (ft) 0.01 Cum SA (acres) Elev Sta Elev 255 .85 1244 .32 254 .84 258 .08 1412.83 260.32 Coe ff Contr. Expan . .1 . 3 Left OB Channel Right OB 0 .085 0 .055 0 .085 825 .00 800 .00 775 .00 335 .32 84 .46 24 .89 335 .32 84 .46 24 .89 437 .57 412 .27 35.15 304 .31 18 . 4 0 19. 91 1. 30 4 .88 1. 41 1.10 4 .59 1. 25 6253 .1 5891. 6 502 .3 304 .35 20 .36 20 . 07 0 .34 1. 27 0 .38 s) 0 .44 6 .19 0 .54 10.06 2 .39 1. 09 10 .43 0 .59 1. 57 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr E.G. Elev (ft) 258 .13 Vel Head (ft) 0 .22 w.s . Elev (ft) 257.91 Crit W.S . (ft) 257 .36 E.G. Slope (ft/ ft) 0 .006039 Q Total (cfs) 1380.00 Top Width (ft) 385.15 Vel Total (ft/s) 2 .31 Max Chl Dpth (ft) 7 .16 Conv. Total (cfs) 17758 .7 Length Wtd . (ft) 814 .75 Min Ch El (ft) 250 .75 Alpha 2 .71 Frctn Loss (ft) 6 . 72 c & E Loss (ft) 0 .01 Post Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft/s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb/sq ft) Stream Power (lb/ ft Cum Volume (acre-ft) Cum SA (acres) Left OB 0 .085 825 .00 4 71. 51 4 71. 51 7 91 . 08 34 3 . 4 9 1. 68 1.37 10180.1 343 .53 0 .52 s) 0 .87 15 .29 11 . 73 Channel 0 .055 800 .00 92.19 92 .19 529 .83 18 . 40 5 .75 5 .01 6818 .2 20.36 1. 71 9 .81 2 .74 0 .60 Right OB 0 .085 775 .00 33 . 97 33 .97 59 .09 23.26 1 .74 1. 4 6 760 . 4 23 .44 0 .55 0 .95 2 .08 2 .41 Exhibit E-2 17 of20 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-lb RIVER : Trib . of Alum Cr RS : 6084 INPUT Description : Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta 917 252 958 250 1000 24 9. 94 1046.35 1224 .66 249 .58 1310.49 248.9 1315.19 24 5 . 7 5 1316.84 1325 .11 249 .95 1350.48 250 .13 1425.92 252 .19 1435.92 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 917 .085 1310.49 .055 1320.33 .085 Bank Sta: Left Right Lengths : Left Channel Right 1310.49 1320.33 250 250 275 CROSS SECTION OUTPUT Profile #10yr Post E .G. Elev (ft) 251. 05 Element Vel Head (ft) 0 .29 Wt . n-Val . w.s . Elev (ft) 250 . 76 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ ft) 0 .016202 Area (sq ft) Q Total (cfs) 885.00 Flow (cfs) Top Width (ft) 4 31. 26 Top Width (ft) Vel Total ( ft/s) 2 . 43 Avg. Vel . (ft/s) Max Chl Dpth (ft) 5 .07 Hydr. Depth (ft) Conv . Total (cfs) 6952 .9 Conv. (cfs) Length Wtd. (ft) 251. 22 Wetted Per. (ft) Min Ch El (ft) 245 .69 Shear (lb/sq ft) Alpha 3 .16 Stream Power (lb/ft Frctn Loss (ft) 1. 85 Cum Volume (acre-ft) c & E Loss (ft) 0 .05 Cum SA (acres) Elev Sta Elev 250 .4 1130 .88 250.47 245 .69 1320 .33 248 .71 252 .49 1445 .92 252 .69 Coef f Contr. Expan . .1 .3 Left OB Channel Right OB 0 .085 0 .055 0 .085 250.00 250 .00 275 .00 294 .15 36 .91 32 . 4 9 294 .15 36 .91 32 . 49 563.58 269 .55 51 .86 368 .12 9 .84 53 .30 1. 92 7 .30 1. 60 0 .80 3 .75 0 .61 4427 .7 2117 . 7 407 .5 368 .14 11 . 92 53 .47 0 .81 3 .13 0 .61 s) 1 .55 22 .86 0 .98 4 .10 1. 27 0 .57 4 . 07 0 .33 0 .92 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 251 . 40 Element Left OB Channel Right OB Vel Head (ft) 0 .20 Wt. n-Val. 0 .085 0 .055 0 .085 w.s . Elev (ft) 251 .20 Reach Len. (ft) 250.00 250 .00 275 .00 Crit W.S . (ft) Flow Area (sq ft) 458.73 41. 25 59 .61 E.G. Slope (ft/ ft) 0 . 011947 Area (sq ft) 458.73 41. 25 59 .61 Q Total (cfs) 1380 .00 Flow (cfs) 998.68 278 .66 102 .66 Top Width (ft) 456 .49 Top Width (ft) 377.17 9 .84 69 . 4 8 Vel Total (ft/s) 2 .47 Avg. Vel . (ft/s) 2.18 6 .75 1. 72 Max Chl Dpth (ft) 5 .51 Hydr . Depth (ft) 1. 22 4.19 0 .86 Conv. Total (cfs) 12625 .3 Conv. (cfs) 9136.7 2549.4 939.2 Length Wtd. (ft) 251 .67 Wetted Per. (ft) 377 .21 11 .92 69 .65 Min Ch El (ft) 245 .69 Shear (lb/sq ft) 0.91 2.58 0 .64 Alpha 2 .12 Stream Power (lb/ft s) 1. 97 17 .43 1.10 Frctn Loss (ft) 1. 77 Cum Volume (acre-ft) 6 . 48 1. 52 1. 24 c & E Loss (ft) 0 .02 Cum SA (acres) 4 .91 0 .34 1. 58 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. Exhibit E-2 18 of20 CROSS SECTION REACH : AC-lb RIVER: Trib. of Alum Cr RS : 5660 INPUT Description: Station Elevation Data Sta Elev Sta 737 250 911 1222 .23 248 .21 1227.41 1371 .42 250.03 1391.42 Manning's n Values Sta n Val Sta 737 .085 1222.23 Bank Sta : Left Right 1222.23 1244 .43 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 12 Elev Sta Elev Sta 248 1000 247 .81 1068 .63 242 .36 1230 . 48 242.57 1244 .43 250.37 num= 3 n Val Sta n Val .085 .055 1244 .43 Lengths: Left Channel Right 475 350 450 Profile #lOyr Post 249 .15 Element 0 .12 Wt . n-Val . 249 .03 Reach Len. (ft) Flow Area (sq ft) 0 .004336 Area (sq ft) 944 .00 Flow (cfs) 4 94 . 71 Top Width (ft) 1. 66 Avg. Vel . ( ft/s) 6 .67 Hydr. Depth (ft) 14336 .4 Conv. (cfs) 413 .01 Wetted Per. (ft) 242 .36 Shear (lb/sq ft) 2 .84 Stream Power (lb/ ft 3 .55 Cum Volume (acre-ft) 0 .08 Cum SA (acres) Elev Sta 247.42 1149.06 247 .95 1265.1 Coeff Contr . .1 Left OB 0 .085 350.00 432.68 432.68 524 .35 400.52 1. 21 1. 08 7963.2 400.53 0.29 s) 0 .35 2 .02 1. 86 Elev 247 .78 248 .09 Expan. .3 Channel 0 .055 450 .00 92 .06 92 .06 382 .03 22 .20 4 .15 4 .15 5801.8 25 .84 0 .96 4 .00 0 .90 0 .24 Right OB 0 .085 475 .00 44 .83 44 .83 37 .62 71. 99 0 .84 0 .62 571 .4 72 .00 0 .17 0.14 0 .33 0 .53 Warning: The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ~han 0.7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 249 .62 Element Left OB Channel Right OB Vel Head (ft) 0 .13 Wt. n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 24 9 . 4 9 Reach Len. (ft) 350.00 450 .00 475 .00 Crit W.S . (ft) Flow Area (sq ft) 626 .97 102 .32 83 .93 E.G. Slope (ft/ft) 0 .004751 Area (sq ft) 626 .97 102 .32 83 .93 Q Total (cfs) 1524 .00 Flow (cfs) 955 .53 476 .85 91 .62 Top Width (ft) 560.21 Top Width (ft) 440.71 22 .20 97 .30 Vel Total (ft/s) 1 .87 Avg. Vel . (ft/s) 1.52 4 .66 1. 09 Max Chl Dpth (ft) 7 .13 Hydr. Depth (ft) 1. 42 4 . 61 0 .86 onv. Total (cfs) 22111 .1 Conv. (cfs) 13863 .5 6918 .4 1329 .3 Length Wtd. (ft) 405 .09 Wetted Per. (ft) 440 .72 25 .84 97.31 Min Ch El (ft) 242 .36 Shear (lb/sq ft) 0 . 42 1.17 0 .26 Alpha 2 .37 Stream Power (lb/ ft s) 0 .64 5 .47 0 .2 8 Fr ctn Loss (ft) 3 .18 Cum Volume (acre-ft) 3 .36 1.10 0 . 7 9 c & E Loss (ft) 0 .05 Cum SA (acres) 2 .56 0 .25 1. 06 Narning: The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for ~dditional cross sections . Narning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ~han 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and ~revious cross section. This may indicate the need for additional cross sec~ions . CROSS SECTION RIVER: Trib. of Alum C~ Exhibit E-2 19 of20 REACH : AC-lb INPUT Description: Station Elevation Sta Elev 1000 247 .07 1172.2 242 .23 Data Sta 1029. 58 1208.45 RS : 5154 num= 14 Elev Sta 245.97 1065.83 245 .06 1241.84 Elev Sta 245.16 1115 .84 245.83 1255 .93 Elev Sta 245.22 1145.55 238.31 1268 .06 1315.83 245.78 1365.83 245.56 1415.83 246 .3 1443 .75 247 .28 Manning 's n Values Sta n Val Sta 1000 .085 1241.84 Bank Sta : Left Right 1241.84 1268 .06 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) :::rit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 3 n Val Sta n Val .085 .055 1268 .06 Coeff Contr . .1 Expan. . 3 Profile #lOyr Post 245 .52 0 .94 244 .58 244 .58 0.023146 954 .00 110 . 99 5 .69 6 .27 6270.6 238 .31 1. 87 Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg . Vel. (ft/s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb/sq ft) Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) Left OB 0.085 69.16 69.16 196. 54 62.44 2.84 1.11 1291. 8 62.62 1. 60 4 . 53 Elev 244 .43 243.3 Channel 0.055 82.64 82.64 726.27 23 .88 8 . 7 9 3 . 46 4773.7 26.43 4. 52 39.70 Right OB 0 .085 15 .80 15 .80 31.20 24 .67 1. 97 0 .64 205 .1 24 . 71 0.92 1 .82 Warning: User specified water surface is not possible for the specified flow regime . The program used critical depth as the starting water surface. Warning: Divided flow computed for this cross-section. CROSS SECTION OUTPUT Profile HlOOyr Post E.G. Elev (ft) 246 .39 Element Left OB Channel Right OB Vel Head (ft) 0 .66 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 245 .73 Reach Len. (ft) Crit W.S . (ft) 245 .73 Flow Area (sq ft) 210 .38 111 . 31 61 .10 E.G. Slope (ft/ ft) 0.015263 Area (sq ft) 210 .38 111. 31 61 .10 Q Total (cfs) 1529.00 Flow (cfs) 474 .10 913. 4 5 141 .45 Top Width (ft) 320.03 Top Width (ft) 197. 16 26 .03 96 .84 Vel Total (ft/s) 3 .99 Avg. Vel . (ft/s) 2 .25 8 .21 2 .32 Max Chl Dpth (ft) 7 .42 Hydr. Depth (ft) 1. 07 4 .28 0 .63 Conv. Total (cfs) 12376 .0 Conv. (cfs) 3837 .4 7393 .6 1144.9 Length Wtd . (ft) Wet ed Per. (ft) 197. 38 28 .87 96 . 90 Min Ch El (ft) 238 .31 Shear (lb/sq ft) 1. 02 3 .67 0 .60 Alpha 2 .65 Stream Power (lb/ ft s) 2 .29 30 .14 1. 39 Frctn Loss (ft) Cum Volume (acre-ft) c & E Loss (ft) Cum SA (acres) Warning: User specified water surface is not possible for the specified flow regime . The program used critical depth as the starting water surface. Warning: Divided flow computed for this cross-section. Exhibit E-2 20 of20 EXHIBIT "E-3" HEC-RAS ANALYSIS EXISTING CONDITIONS (NO DETENTION UPSTREAM) EXHIBIT E-3 HEC-RAS ANALYSIS -PROPOSED CONDITIONS (NO DETENTION UPSTREAM) HEC -RAS September 1998 Version 2.2 U.S. Army Corp of Engineers Hydrologic Engineering Center x x x x x x 609 Second Street, Suite D Davis, California 95616-4687 { 916) 756-1104 xxxxxx xx xx xxxx x x x x x x x x x x x xx x x xxxxxxx xx xx x xxx xx xx xxxxxx x x x x x x x x x x xxxxxx xx xx PROJECT DATA Project Title: CSBC HEC-2 Analysis Project File csbc.prj x Run Date and Time: 11/11/99 11:27 :16 AM Project in English units PLAN DATA x x x x x x x x x Plan Title: Proposed Conditions (No Detention Upstream) Plan File f :\9708\Hec-2\csbc.p04 Geometry Title: Geometry File Proposed Conditions f :\9708\Hec-2\csbc .g02 x x x xx xx x x xx xx x x xxxxx Flow Title Flow File Proposed Flow Data (No Detention Upstream) f :\9708\Hec-2\csbc .f02 Plan Summary Information: Number of: Cross Sections Culverts Bridges 18 1 0 Mulitple Openings Inline Weirs Computational Information Water surface calculation tolerance Critical depth calculaton tolerance Maximum number of interations Maximum difference tolerance Flow tolerance factor Computation Options 0 .01 0 .01 20 0.3 0 .001 Critical depth computed only where necessary 0 0 Conveyance Calculation Method : At breaks in n values only Friction Slope Method: Average Conveyance Computational Flow Regime: Subcritical Flow FLOW DATA Flow Title: Proposed Flow Data {No Detention Upstream) Flow File f :\9708\Hec-2\csbc .fO~ Flow Data ( cfs) Exhibit E-3 1 of21 River Reach RS lOyr Post Trib . of Alum CrAC-la 9430 337 Trib . of Alum CrAC-la 8674 377 Trib . of Alum CrAC-2 11019 167 Trib . of Alum CrAC-2 10455 286 Trib . of Alum CrAC-lb 8457 647 Trib. of Alum CrAC-lb 6900 1048 Trib. of Alum CrAC-lb 5660 1121 Trib. of Alum CrAC-lb 5154 1113 Boundary Conditions River Reach Profile Trib. of Alum CrAC-lb lOyr Post 244 .5 Trib. of Alum CrAC-lb lOOyr Post 244 .5 GEOMETRY DATA Geometry Title : Proposed Conditions Geometry File : f :\9708\Hec-2\csbc.g02 Reach Connection Table River Reach Upstream Boundary Trib . of Alum Cr AC-la Trib . of Alum Cr AC-2 Trib . of Alum Cr AC-lb Junction 1 CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC-la INPUT Description : Station Elevation Data Sta Elev Sta 1000 280 1102 1174 274 1182 Manning 's n Values Sta n Val Sta 1000 .085 1142 Bank Sta: Left 1142 Right 1174 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) rit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) RS : 9430 num= 10 Elev Sta Elev Sta 278 1125 276 1142 276 1216 278 1277 num= 3 n Val Sta n Val .055 1174 .085 Lengths : Left Channel Right 180 180 180 Profile #l Oyr Post 275.73 Element 0 .24 Wt . n-Val . 275 .49 Reach Len. (ft) Flow Area (sq ft) 0 .006621 Area (sq ft) 337 .00 Flow (cfs) 50.68 Top Width (ft) 3 .59 Avg. Vel . (ft/s) 3 . 4 9 Hydr. Depth (ft) 4141. 6 Conv. (cfs) 180.00 Wetted Per. (ft) 272 .00 Shear (lb/sq ft) lOOyr Post 506 635 258 436 1117 1644 1809 1806 Upstream Downstream Boundary Junction 1 Junction 1 Elev Sta 274 1163 278 .5 1339 Coeff Contr. .1 Left OB 0 .085 180.00 9 . 4 9 9 . 4 9 11 . 06 12 .70 1 .17 0 .75 135 .9 12 . 79 0 .31 Elev 272 279 Expan. .3 Channel 0 .055 180.00 79 .81 79 .81 320.82 32 .00 4 .02 2 . 4 9 3942 .8 32 .28 1. 02 Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha 1. 20 Stream Power (lb/ft s) 0 .36 4 .11 Frctn Loss (ft) C & E Loss (ft) 2 .21 0 .05 Cum Volume (acre-ft) Cum SA (acres) 0 .57 4 .36 0 .35 1. 01 Downstream Known WS Known WS Ri ght OB 0 .085 180.00 4 . 4 6 4 . 4 6 5 .12 5.98 1.15 0 . 75 63.0 6 .16 0 .30 0 .34 0 .64 0 . 4 3 Exhibit E-3 2 of21 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 276 .40 Element Left OB Channel Right OB Vel Head (ft) 0 .32 Wt. n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 276 .08 Reach Len. (ft) 180.00 180.00 180 .00 Crit W.S . (ft) Flow Area (sq ft) 18.41 98 .59 8 .70 E.G. Slope (ft/ ft) 0.006935 Area (sq ft) 18.41 98 .59 8 . 70 Q Total (cfs) 506 .00 Flow (cfs) 27 .16 466 .99 11 . 85 Top Width (ft) 59 .31 Top Width (ft) 17 .93 32 .00 9 .38 Vel Total (ft/s) 4 .03 Avg. Vel . (ft/s) 1. 48 4 .74 1. 36 Max Chl Dpth (ft) 4 .08 Hydr. Depth (ft) 1. 03 3.08 0 .93 Conv . Total (cfs) 6076 .0 Conv. (cfs) 326.2 5607.5 142 .3 Length Wtd . (ft) 180.00 Wetted Per. (ft) 18 .05 32 .28 9 .62 Min Ch El (ft) 272 .00 Shear (lb/sq ft) 0 .44 1. 32 0 .39 Alpha 1. 29 Stream Power (lb/ ft s) 0 .65 6 .26 0 .53 Fr ctn Loss (ft) 2 .22 Cum Volume (acre-ft) 0 .89 5 .14 1. 03 c & E Loss (ft) 0 .05 Cum SA (acres) 0 . 48 1. 01 0 .57 Warning: The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-la RIVER : Trib. of Alum Cr RS : 9248 INPUT Description : Station Elevation Data num= 9 Sta Elev Sta Elev Sta Elev Sta 1000 278 1111 276 1161 274 1177 1204 272 1228 274 1271 276 1391 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1177 .055 1204 .085 Bank Sta : Left Right Lengths : Left Channel Right 1177 1204 257 260 264 ROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 27 3 . 4 8 Element Vel Head (ft) 0 . 70 Wt. n-Val . w.s. Elev (ft) 272 .78 Reach Len. (ft) Crit W.S . (ft) 272 .74 Flow Area (sq ft) E.G. Slope (ft/ ft) 0.030181 Area (sq ft) Q Total (cfs) 337 .00 Flow (cfs) Top Width (ft) 42 .50 Top Width (ft) Vel Total ( ft/s) 6 .25 Avg . Vel . (ft/s) Max Chl Dpth (ft) 2 .78 Hydr . Depth (ft) Conv. Total (cfs) 1939.8 Conv. (cfs) Length Wtd. (ft) 260 .24 Wetted Per . (ft) Min Ch El (ft) 270 .00 Shear (lb/sq ft) Alpha 1.16 Stream Power (lb/ft Frctn Loss (ft) 2 .55 Cum Volume (acre-ft) c & E Loss (ft) 0 .15 Cum SA (acres) Elev Sta Elev 272 1188 270 277 Coef f Contr. Expan. .1 .3 Left OB Channel Ri ght OB 0 .085 0 .055 0 .085 257 .00 260.00 264 .00 2. 4 0 47.93 3 .60 2. 4 0 47 .93 3 .60 3.86 327.33 5.81 6.20 27 .00 9.30 1. 61 6.83 1. 61 0.39 1. 78 0 .39 22 .2 1884.2 33 .4 6. 25 27 .30 9.33 0. 72 3.31 0.73 s) 1.16 22.59 1.1 7 0.54 4.10 0.62 0.31 0.89 0.39 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Exhibit E-3 3 of21 Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #lOOyr Post E.G . Elev (ft) 274 .13 Element Left OB Channel Right OB Vel Head (ft) 0 .87 Wt . n-Val . 0 .085 0 .055 0.085 w.s. Elev (ft) 273 .26 Reach Len. (ft) 257 .00 260.00 264 .00 Crit W.S . (ft) 273 .26 E'low Area (sq ft) 6.37 61.07 9.55 E.G. Slope (ft/ft) 0.027973 Area (sq ft) 6.37 61 .07 9 .55 Q Total (cfs) 506 .00 E'low (cfs) 13.62 4 71. 88 20 . 4 9 Top Width (ft) 52 .23 Top Width (ft) 10.09 27 .00 15 .14 Vel Total [ft/s) 6 .57 Avg. Vel . (ft/s) 2.14 7 .73 2 .15 Max Chl Dpth (ft) 3 .26 Hydr. Depth (ft) 0 .63 2 .26 0 .63 Conv . Total (cfs) 3025 .4 Conv. (cfs) 81. 5 2821.4 122 .5 Length Wtd. (ft) Wetted Per . (ft) 10.17 27.30 15 .19 Min Ch El (ft) 270 .00 Shear (lb/sq ft) 1. 09 3.91 1.10 Alpha 1. 30 Stream Power (lb/ ft s) 2. 34 30 .18 2 .36 E'rctn Loss (ft) Cum Volume (acre-ft) 0.84 4.81 0. 99 c & E Loss (ft) Cum SA (acres) 0.42 0.89 0 .52 Warning: The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations. Warning: The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-la RS : 8982 INPUT Description: Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 274 1107 272 1130 270 1140 268 1150 266.5 1159 268 1182 270 1203 272 1214 274 127 9 275 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1140 .055 1159 .085 Bank Sta : Left Right Lengths : Left Channel Right Coe ff Contr . Expan. 1140 1159 302 302 302 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 270.78 Element Left OB Channel Right OB Vel Head (ft) 0 .21 Wt . n-Val . 0 .085 0 .055 0.085 w.s. Elev (ft) 270.57 Reach Len. (ft) 302 .00 302 .00 302.00 Crit W.S . (ft) E'low Area (sq ft) 17 .55 63 .05 37 .78 E.G. Slope (ft/ft) 0 .004805 Area (sq ft) 17 .55 63 .05 37 .78 Q Total (cfs) 337 .00 E'low (cfs) 21. 92 260 .58 54 .50 Top Width (ft) 64 .51 Top Width [ft) 16 .54 19. 00 28 .97 Vel Total (ft/s) 2 .85 Avg. Vel. (ft/s) 1.25 4 .13 1. 44 Max Chl Dpth [ft) 4 . 07 Hydr. Depth (ft) 1.06 3 .32 1. 30 Conv . Total [cfs) 4861 .5 Conv. (cfs) 316.2 3759 .1 786 .2 Length Wtd. [ft) 302.00 Wetted Per. [ft) 16. 76 19 .24 29 .08 Min Ch El (ft) 266 .50 Shear (lb/sq ft) 0 .31 0 .98 0 .39 Alpha 1. 68 Stream Power (lb/ ft s) 0 .39 4 .06 0 .56 E'rctn Loss [ft) 2 .95 Cum Volume (acre-ft) 0 .48 3 .77 0 .50 c & E Loss (ft) 0 .04 Cum SA (acres) 0 .24 0 . 75 0.28 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. Exhibit E-3 -l of 21 CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 271. 68 Element Left OB Channel Right OB Vel Head (ft) 0 .21 Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 271. 4 7 Reach Len. (ft) 302 .00 302 .00 302 .00 rit W.S . (ft) E'low Area (sq ft) 37 .05 80 .13 68 .05 E.G. Slope (ft/ ft) 0 .003865 Area (sq ft) 37 .05 80 .13 68 .05 Q Total (cfs) 506.00 E'low (cfs) 49 .56 348 .43 108.00 Top Width (ft) 84 .28 Top Width (ft) 26.87 19.00 38. 41 Vel Total (ft/s) 2 .73 Avg . Vel . (ft/s) 1. 34 4 .35 1. 59 Max Chl Dpth (ft) 4. 97 Hydr. Depth (ft) 1. 38 4 .22 1. 77 Conv. Total (cfs) 8138.9 Conv . (cfs) 797 . 2 5604 .5 1737 .2 Length Wtd. (ft) 302.00 Wetted Per . (ft) 27 .14 19.24 38.56 Min Ch El (ft) 266 .50 Shear (lb/sq ft) 0 .33 1. 01 0 . 43 Alpha 1. 84 Stream Power (lb/ft s) 0 .44 4 . 37 0 .68 E'rctn Loss (ft) 2 .85 Cum Volume (acre-ft) 0.71 4.39 0 . 76 c & E Loss (ft) 0 .09 Cum SA (acres) 0 .31 0 .75 0 .36 Warning: The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. CROSS SECTION REACH : AC-la RIVER: Trib. of Alum Cr RS: 8674 INPUT Description : Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta 1000 272 107 9 270 1089 268 1095 1125 266 1131 268 1154 268 1200 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1095 .055 1125 .085 Bank Sta: Left Right Coe ff Contr. Expan. 1095 1125 .1 . 3 CROSS SECTION OUTPUT Profile #lOyr Pos E.G. Elev (ft) 267 .79 Element Vel Head (ft) 0 .65 Wt . n-Val . w.s . Elev (ft) 267 .13 Reach Len. (ft) rit W.S . (ft) E'low Area (sq ft) E.G. Slope (ft/ ft) 0 .025406 Area (sq ft) Q Total (cfs) 377 .00 E'low (cfs) Top Width (ft) 36 .80 Top Width (ft) Vel Total (ft/s) 6 .24 Avg. Vel . (ft/s) Max Chl Dpth (ft) 2 .63 Hydr. Depth (ft) Conv . Total (cfs) 2365 .2 Conv. (cfs) Length Wtd. (ft) 209 .00 Wetted Per. (ft) Min Ch El (ft) 264 .50 Shear (lb/sq ft) Alpha 1. 08 Stream Power (lb/ ft E'rctn Loss (ft) 0 .08 Cum Volume (acre-ft) c & E Loss (ft) 0 .19 Cum SA (acres) Elev Sta Elev 266 1115 264 .5 270 1248 272 Left OB Channel Right OB 0 .085 0 .055 0 .085 209 .00 209 .00 209 .00 1 .93 56 .52 1. 93 1. 93 56 .52 1. 93 3 .55 369 .89 3 .55 3 .40 30 .00 3 . 4 0 1 .84 6 .54 1. 84 0 .57 1. 88 0 .57 22.3 2320.6 22.3 3 .59 30 .17 3 .59 0 .85 2 . 97 0 .85 s) 1. 57 19 . 45 1. 57 0 .11 1. 01 0 .10 Warning: The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less t han 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 268 .74 Element Left OB Channel Right OB Exhibit E-3 5 of21 Vel Head (ft) 1. 09 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 267 .66 Reach Len. (ft) 209 .00 209 .00 209 .00 Crit W.S . (ft) 267 .66 Flow Area (sq ft) 4 .12 72 .19 4.12 E.G. Slope (ft/ft) 0 .030911 Area (sq ft) 4 .12 72 .19 4 .12 Q Total (cfs) 635 .00 Flow (cfs) 10. 77 613 .46 10 .77 Top Width (ft) 39.94 Top Width (ft) 4 . 97 30.00 4 . 97 Vel Total (ft/s) 7 .90 Avg. Vel . (ft/s) 2 .62 8 .50 2 .62 Max Chl Dpth (ft) 3 .16 Hydr. Depth (ft) 0 .83 2 .41 0 .83 Conv. Total (cfs) 3611 . 8 Conv. (cfs) 61. 3 3489 .2 61.3 Length Wtd . (ft) 209.00 Wetted Per. (ft) 5 .24 30.17 5 .24 Min Ch El (ft) 264 .50 Shear (lb/sq ft) 1. 52 4 .62 1. 52 Alpha 1.12 Stream Power (lb/ ft s) 3 .97 39.24 3 . 97 Frctn Loss (ft) 0 .13 Cum Volume (acre-ft) 0 .16 1.19 0 .14 c & E Loss (ft) 0 .32 Cum SA (acres) Warning : The energy equation could not be balanced within the specified number of iterations . The program selected the water surface that had the least amount of error between computed and assumed values . Warning : The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . Warning : During the standard step i t erations, when the assumed water surface was set equal to critical depth , the calculated water surface came back below critical depth. This indicates that there is not a valid subcritical answer . The program defaulted to critical depth. CROSS SECTION REACH : AC-2 RIVER : Trib. of Alum Cr RS : 11019 INPUT Description: Station Elevation Sta Elev 1000 276 1196 270 1372 276 Manning 's n Values Sta n Val 1000 .085 Data Sta 1089 1209 Sta 1196 Bank Sta: Left Right 1196 1214 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) w.s. Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv . Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha Frctn Loss (ft) c & E Loss (ft) num= Elev 274 268 num= n Val .055 Lengths : 11 Sta 1133 1 214 3 Sta 1214 Left 317 Elev 275 270 n Val .085 Channel 317 Sta 1174 1237 Right 317 Profile #lOyr Post 271 .07 Element 0 .65 Wt . n-Val. 270.42 Reach Len. (ft) 270. 41 Flow Area (sq ft) 0.037581 Area (sq ft) 167 .00 Flow (cfs) 24 .07 Top Width (ft) 6 .23 Avg. Vel . (ft/s) 2 . 42 Hydr. Depth (ft) 861. 5 Conv. (cfs) 317.00 Wetted Per. (ft) 268 .00 Shear (lb/sq ft) 1. 07 Stream Power (lb/ft 2 .03 Cum Volume (acre-ft) 0 .18 Cum SA (acres) s) Elev 274 272 Coe ff Sta 1190 1252 Contr . .1 Left OB 0 .085 317 .00 0 .26 0 .26 0 .30 1.25 1.15 0.21 1. 6 1.32 0 .47 0 .54 0 . 43 0 .22 Elev 272 274 Expan . . 3 Channel 0 .055 317 .00 25 .53 25 .53 165.50 18 .00 6 .48 1. 42 853.7 18 .54 3 .23 20 .95 3 . 70 1.03 Right OB 0.085 317 .00 1. 01 1. 01 1. 20 4 .81 1.19 0 .21 6 .2 4 .83 0 .49 0 .58 0 .55 0 .17 Warning: The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . ~arning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross secLion . This may indicate the need for additional cross sections. Exhibit E-3 6 of21 CROSS SECTION OUTPUT Profile HlOOyr Post E.G. Elev (ft) 271.68 Element Left OB Channel Right OE Vel Head (ftl 0 .77 Wt . n-Val . 0 .085 0 .055 0 .085 w.s . Elev (ft) 270 .91 Reach Len. (ft) 317.00 317.00 317 .00 rit W.S . (ft) 270 .91 E'low Area (sq ft) 1. 24 34.38 4.76 E.G. Slope (ft/ ft) 0.031067 Area (sq ft) 1. 24 34 .38 4.76 Q Total (cfs) 258 .00 E'low (cfs) 2.19 247 .15 8.66 Top Width (ft) 31 .20 Top Width (ft) 2. 73 18 .00 10.47 Vel Total (ft/s) 6 .39 Avg. Vel . (ft/s) 1. 76 7 .19 1 .82 Max Chl Dpth (ft) 2 .91 Hydr. Depth (ft) 0. 46 1 . 91 0 . 4 6 Conv . Total (cfs) 1463 .8 Conv. (cfs) 12.4 1402 .2 49 .1 Length Wtd. (ft) 317 .00 Wetted Per. (ft) 2 .88 18 .54 10 .51 Min Ch El (ft) 268 .00 Shear (lb/sq ft) 0 .84 3 .60 0 .88 Alpha 1. 22 Stream Power (lb/ft s) 1. 4 7 25 .86 1. 60 E'rctn Loss (ft) 1. 93 Cum Volume (acre-ft) 0 .64 4 .38 0.82 c & E Loss (ft) 0 .21 Cum SA (acres) 0 .28 1. 03 0 .24 Warning : The energy equation could not be balanced within the specified number of iterations . The program selected the water surface that had the least amount of error between computed and assumed values . Warning : The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning : During the standard step iterations , when the assumed water surface was set equal to critical depth, the calculated water surface came back below critical depth. This indicates t hat there is not a valid subcritical answer. The program defaulted to critical depth . CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-2 INPUT Description: Station Elevation Data Sta Elev Sta 1000 275 1038 1210 266.75 1222 Manning 's n Values Sta n Val Sta 1000 .085 1156 Bank Sta: Left 1156 Right 1222 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) rit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha E'rctn Loss (ft) C & E Loss (ft) RS : 10703 num= 10 Elev Sta Elev Sta Elev Sta 274 1109 272 1132 270 1156 268 1232 270 1286 270. 9 1359 num= 3 n Val Sta n Val .055 1222 .085 Lengths : Left Channel Right 220 250 238 Profile #lOyr Post 268 .86 0 .05 268 .81 0 .002535 167.00 79.82 1. 66 2 .06 3316 .8 230 .47 266 .75 1. 07 1. 24 0 .01 Element Wt . n-Val . Reach Len. (ft) E'low Area (sq ft) Area (sq ft) now (cfs) Top Width (ft) Avg. Vel. (ft/s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb/sq ft) Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) Coeff Contr. .1 Left OB 0 .085 250 .00 3 . 96 3 .96 1. 91 9 . 7 5 0 . 48 0 .41 37.9 9. 79 0 .06 0 .03 0 . 41 0.18 Elev 268 272 Expan . . 3 Channel 0 .055 238 .00 94 .89 94 . 89 164 .30 66 .00 1 .73 1. 44 3263 .2 66 .08 0 .23 0 .39 3 .26 0 . 72 Right OB 0 .085 220.00 1. 65 1. 65 0 . 7 9 4 .06 0 . 4 8 0 .41 15.6 4 .14 0 .06 0.03 0 .54 0 .14 Warning: The energy loss was greater than 1 .0 ft (0.3 m). between the current and previous cross Exhibit E-3 7 of21 section. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Pos:. E .G. Elev (ft) 269.29 Element Left OB Channel Right OB ·1el Head (ft) 0.06 Wt. n-Val . 0.085 0 .055 0.085 w.s . Elev (ft) 269.23 Reach Len . (ft) 250.00 238.00 220.00 '::rit w.s. (ft) E"low Area (sq ft) 9.06 122.33 3 .77 E.G. Slope (ft/ft) 0 .002515 Area (sq ft) 9.06 122.33 3 .77 Q Total (cfs) 258 .00 now (cfs) 5 . 72 249.92 2 .36 Top Width (ft) 86 .89 Top Width (ft) 14 .74 66.00 6 .14 Vel Total (ft/s) 1. 91 Avg. Vel . (ft/s) 0.63 2 .04 0 .63 Max Chl Dpth (ft) 2 . 48 Hydr . Depth (ft) 0.61 1. 85 0.61 Conv. Total (cfs) 5144 .3 Conv . (cfs) 114 .l 4 983 .1 47 .0 Length Wtd. (ft) 230 . 73 Wetted Per. (ft) 14 .79 66.08 6 .26 Min Ch El (ft) 266 . 7 5 Shear (lb/sq ft) 0.10 0.29 0 .09 Alpha 1.11 Stream Power (lb/ft s) 0.06 0 .59 0 .06 E"rctn Loss (ft) 1. 05 Cum Volume (acre-ft) 0.60 3.81 0 . 7 9 c & E Loss (ft) 0 .01 Cum SA (acres) 0 .22 0 .72 0 .18 Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . CROSS SECTION REACH : AC-2 RIVER : Trib. of Alum Cr RS : 10455 INPUT Description: Station Elevation Sta Elev 1000 272 1110 266 1182 268 Manning 's n Values Sta n Val 1000 . 085 Data Sta 1060 1118 1219 Sta 1100 Bank Sta: Left 1100 Right 1110 CROSS SECTION OUTPUT E.G. Elev (ft) Vel Head (ft) w.s. Elev (ft) Crit W.S. (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha E"rctn Loss (ft) C & E Loss (ft) num= Elev 270 266.3 270 num= n Val .055 12 Sta 1080 1125 3 Sta 1110 Elev 268 266 n Val .085 Sta 1100 1146 Coeff Contr. .1 Expan . . 3 Profile #lOyr Post 267 .61 Element 0.11 Wt . n-Val . 267 .50 Reach Len . (ft) E"low Area (sq ft) 0 .010047 Area (sq ft) 286.00 E"low (cfs) 93.08 Top Width (ft) 2 .35 Avg . Vel . (ft/s) 2 .00 Hydr. Depth (ft) 2853 .3 Conv. (cfs) 228 .00 Wetted Per. (ft) 265.50 Shear (lb/sq ft) 1. 29 Stream Power (lb/ft 0 .07 Cum Volume (acre-ft) 0.03 Cum SA (acres) Elev Sta Elev 266 1103 265 .5 265 .9 1166 266 Left OB Channel Right OB 0 .085 0.055 0.085 228 .00 228 .00 228 .00 11. 31 17 .54 93.09 11. 31 17.54 93 .09 16.34 68 .83 200.83 15.04 10.00 68 .03 1. 4 4 3 .92 2 .16 0 . 75 1. 75 1. 37 163 .0 686 .7 2003.6 15.12 10.06 68 .14 0 .47 1. 09 0 .86 s) 0 .68 4 .29 1. 85 0 .15 1. 00 0 .34 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr E.G. Elev (ft) 268.24 Vel Head (ft) 0.11 w.s . Elev (ft) 268.12 Crit w.s . (ft) ~.G. Slope (ft/ ft) 0 .007227 Post Element Wt . n-Val . Reach Len . (ft) E"low Area (sq ft) Area (sq ft) Left OB Channel 0.085 0.055 228 .00 228 .00 22 .51 23 .72 22 .51 23.72 Right OB 0.085 228.00 136.71 136.71 Exhibit E-3 8 of21 Q Total (cfs) 436.00 Flow (cfs) 34 .68 96 .50 304 .81 Top Width (ft) 105.47 Top Width (ft) 21.22 10.00 74 .2:0 Vel Total ( ft/s) 2 .38 Avg . Vel . (ft/s ) 1. 54 4 . 07 2 . 2:: Max Chl Dpth (ft) 2 .62 Hydr. Depth (ft) 1. 06 2 .37 1. 84 Conv. Total (cfs) 5128.7 Conv. (cfs ) 408 .0 1135.2 3585 .5 Length Wtd . (ft) 228 .00 Wetted Per. (ft) 21. 32 10.06 74 .39 Min Ch El (ft) 265.50 Shear (lb/sq ft) 0 . 48 1. 06 0 .83 Alpha 1 .29 Stream Power (lb/ ft s) 0 .73 4 .33 1 .85 Frctn Loss (ft) 0.11 Cum Volume (acre-ft) 0 .22 1.17 0.50 c & E Loss (ft) 0.03 Cum SA (acres) Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC-lb RS : 84 57 INPUT Description : Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta 1000 268 1034 266 1062 264 1095 1175 265 1203 264 1232 262.5 1260 1321 268 1398 270 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1062 .055 1260 .085 Bank Sta: Left Right Lengths : Left Channel Right 1062 1260 75 85 145 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 267 .52 Element Vel Head (ft) 0 .01 Wt . n-Val . w.s . Elev (ft) 267 . 51 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ ft) 0.000160 Area (sq ft) Q Total (cfs) 647 .00 Flow (cfs) Top Width (ft) 302.99 Top Width (ft) Vel Total (ft/s) 0 . 72 Avg. Vel . (ft/s) Max Chl Dpth (ft) 5 .01 Hydr. Depth (ft) Conv . Total (cfs) 51180.1 Conv. (cfs) Length Wtd. (ft) 86 .65 Wetted Per. (ft) Min Ch El (ft) 262 .50 Shear (lb/sq ft) Alpha 1.20 Stream Power (lb/ ft Frctn Loss (ft) 0 .02 Cum Volume (acre-ft) c & E Loss (ft) 0 .00 Cum SA (acres) CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev ( f ) 268 .10 Element Vel Head (ft) 0 .02 Wt . n-Val . w.s . Elev (ft) 268 .08 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0 .000285 Area (sq ft) Q Total (cfs) 1117 .00 Flow (cfs) Top Width (ft) 324 .02 Top Width (ft) Vel Total (ft/s) 1 .04 Avg. Vel . (ft/s) Max Chl Dpth (ft) 5 .58 Hydr. Depth (ft) Conv . Total (cfs) 66142 .6 Conv. (cfs) Length Wtd. (ft) 87 .16 Wetted Per. (ft) Min Ch El (ft) 262 .50 Shear (lb/sq ft) Alpha 1. 23 Stream Power (lb/ft Frctn Loss (ft) 0 .03 Cum Volume (acre-ft) c & E Loss (ft) 0 .00 Cum SA (acres) Elev Sta 263 1127 264 1282 Coef f Contr. .1 Left OB 0 .085 75.00 89 . 47 89 .47 27 .78 53 .61 0 .31 1. 67 2197.6 53 .73 0 .02 s) 0 .01 18.16 15. 79 Left OB 0 .085 75 .00 122 .86 122 .86 57.10 62 .00 0 . 4 6 1. 98 3381.l 62 .21 0 .04 s) 0 .02 29 .53 19 .18 Elev 264 266 Expan . .3 Channel 0 .055 85 .00 731 .54 731 .54 596.84 198 .00 0 .82 3 .69 47212 .2 198 .14 0 .04 0 .03 6 .84 1. 64 Channel 0 .055 85 .00 844 .79 844 .79 1013 .45 198 .00 1.20 4 .27 60011 .l 198 .14 0 .08 0 .09 8 .88 1. 65 Right OB 0.085 145.00 77 .27 77 .27 22 .38 51 .38 0 .29 1.50 1770.3 51 .51 0 .01 0 .00 3 .09 2 . 75 Right OB 0 .085 145 .00 109 .90 109.90 46 .45 64 .02 0 . 42 1. 72 2750 .5 64 .16 0 .03 0 .01 5 . 6- 4 .19 Exhibit E-3 9 of21 Warning : The cross-section end points had to be extended vertically for the computed water surface . CROSS SECTION REACH : AC-lb RIVER : Trib. of Alum Cr RS: 8291 INPUT Description: Station Elevation Sta Elev 0 270 416 261 644 270 Manning 's n Values Sta n Val 0 . 085 Data Sta 148 424 num= Elev 268 262 num= Sta n Val 381 . 055 Bank Sta : Left Right Lengths: 381 424 11 Sta 212 436 3 Sta 424 Left 58 Elev 266 264 n Val .085 Channel 58 Sta 355 459 Right 58 CROSS SECTION OUTPUT Profile HlOyr Post E.G. Elev (ft) 267 .50 Element Vel Head (ft) 0 .02 Wt. n-Val . w.s. Elev (ft) 267 . 4 8 Reach Len . (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ft) 0.000235 Area (sq ft) Q Total (cfs) 647 .00 Flow (cfs) Top Width (ft) 357 .39 Top Width (ft) Vel Total (ft/s) 0 .70 Avg . Vel . (ft/s) Max Chl Dpth (ft) 6 . 48 Hydr . Depth (ft) Conv. Tot al (cfs) 42248.8 Conv. (cfs) Length Wtd. (ft) 58 .00 Wetted Per . (ft) Min Ch El (ft) 261 .00 Shear (lb/sq ft) Alpha 2.23 Stream Power (lb/ ft Frctn Loss (ft) 0.05 Cum Volume (acre-ft) C & E Loss (ft) 0 .22 Cum SA (acres) s) Elev 264 266 Sta 381 544 Coe ff Contr . .1 Left OB 0 .085 58 .00 506.55 506.55 238.97 216.42 0. 47 2.34 15604 .9 216.53 0.03 0.02 17.65 15.56 Elev 262 268 Expan . .3 Channel 0.055 58.00 257 .22 257 .22 350.26 43.00 1 .36 5.98 22871.8 43.08 0.09 0.12 5.87 1. 40 Right OB 0 .085 58.00 157.52 157.52 57.77 97 . 97 0.37 1 .61 3772.1 98.24 0.02 0 .01 2 . 70 2.50 Warning: The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 268. 07 Element Vel Head (ft) 0 .03 Wt . n-Val . w.s. Elev (ft) 268 .03 Reach Len. (ft) Crit W.S . (ft) Flow Area (sq ft) E.G. Slope (ft/ ft) 0.000438 Area (sq ft) Q Total (cfs) 1117 .00 Flow (cfs) Top Width (ft) 400 .18 Top Width (ft) Vel Total (ft/s) 0 .99 Avg . Vel. (ft/s) Max Chl Dpth (ft) 7 .03 Hydr . Depth (ft) Conv. Total (cfs) 53379.4 Conv. (cfs) Length Wtd. (ft) 58 .00 Wetted Per. (ft) Min Ch El (ft) 261 .00 Shear (lb/sq ft) Alpha 2 .21 Stream Power (lb/ ft Frctn Loss (ft) 0 .02 Cum Volume (acre-ft) c & E Loss (ft) 0 .00 Cum SA (acres) CROSS SECTION REACH : AC-lb RIVER : Trib. of Alum Cr RS : 8225 INPUT Description: Station Elevation Sta Elev 137 270 Data Sta 307 num= Elev 268 12 Sta 507 Elev 266 Sta 537 s) Elev 264 Left OB 0 .085 58.00 630.90 630.90 445.02 235.50 0. 71 2.68 21266.9 235.62 0.07 0.05 28.88 18 .93 Sta 552 Channel 0 .055 58.00 280.95 280.95 554. 4 5 43.00 1. 97 6.53 26496.4 43.08 0.18 0.35 7.78 1. 41 Elev 262 Right OB 0 .085 58.00 218.08 218.08 117. 52 121 .69 0.54 1. 79 5616.1 121.96 0.05 0.03 5.12 3 .88 Exhibit E-3 10 of21 582 691 260 .5 267 Manning 's n Values Sta n Val 137 . 085 594 729 260 .5 268 num= Sta n Val 552 . 055 610 3 Sta 610 262 n Val .085 635 Bank Sta : Left 552 Ineffective Flow Sta L Sta R Right 610 Lengths : Left Channel Right 116 137 582 num= Elev 266. 75 Sta L 594 2 116 116 St a R 729 Elev 266.75 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) Vel Head (ft) W.S . Elev (ft) Crit W.S . (ft) E.G. Slope (ft/ft) Q Total (cfs) Top Width (ft) Vel Total (ft/s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd . (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) 267.23 2 .26 264 .97 264 .97 0.027050 647 .00 112 . 32 12 .06 4. 47 3933.9 116 . 00 260 .50 1. 00 Element Wt . n-Val . Reach Len. (ft) Flow Area (sq ft) Area (sq f t ) Flow ( cfs) Top Width (ft) Avg . Vel. (ft/ s) Hydr. Depth (ft) Conv. (cfs) Wetted Per . (ft) Shear (lb/sq ft) Stream Power (lb/ft s) Cum Volume (acre-ft) Cum SA (acres) 265 665 Coeff Contr . .3 Left OB 116.00 36.64 29.56 17.29 15.39 266 Expan . . 5 Channel 0 .055 116. 00 53.65 224 .82 647 .00 58.00 12.06 4 . 4 7 3933.9 12.00 7.55 91 .05 5.55 1. 33 Right OB 116 .00 36 .78 24.76 2 .57 2 . 42 Warning: During subcritical analysis, the water surface upstream of culvert went to critical depth. CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 268 .04 Element Left OB Channel Right OB Vel Head (ft) 0 .05 Wt . n-Val . 0 .085 0 .055 0 .085 w.s. Elev (ft) 267.99 Reach Len. (ft) 116. 00 116.00 116.00 rit W.S . (ft) 266 . 7 5 Flow Area (sq ft) 363. 7 0 400.19 244.87 E.G. Slope (ft/ ft) 0.000422 Area (sq ft) 363. 7 0 400.19 244 .87 Q Total (cfs) 1117 .00 Flow (cfs) 170.22 804 .46 142 .33 Top Width (ft) 421.27 Top Width (ft) 244 .47 58 .00 118 .80 Vel Total (ft/s) 1.11 Avg . Vel . (ft/s) 0. 47 2.01 0 .58 Max Chl Dpth (ft) 7 .49 Hydr . Depth (ft) 1. 4 9 6.90 2 .06 Conv. Total (cfs) 54342.6 Conv. (cfs) 8281.1 39137 .3 6924 .2 Length Wtd . (ft) 116 .00 Wetted Per . (ft) 244 .68 58.11 119 . 03 Min Ch El (ft) 260 .50 Shear (lb/sq ft) 0.04 0.18 0 .05 Alpha 2 .44 Stream Power (lb/ft s) 0.02 0.37 0.03 Frctn Loss (ft) Cum Volume (acre-ft) 28.22 7.33 4.81 c & E Loss (ft) Cum SA (acres) 18.61 1. 34 3.72 Warning: The parabolic search method failed to converge on critical depth. The program will try t he cross section slice/secant method to find critical depth. CULVERT REACH : AC-lb INPUT RIVER : Trib. of Alum Cr RS : 8151 Description: Existing Dual 5 'x4 ' RCBC Distance from Upstream XS 20 Deck/Roadway Width Weir Coefficient Bridge Deck/Roadway Skew 65 2 .6 Upstream Deck/Roadway Coordinates num= 14 Sta Hi Cord Lo Cord 0 270 .25 469 582 267 .16 266 .69 Sta Hi Cord Lo Cord 173 268 .25 530 266 .85 594 266 .69 Sta Hi Cord Lo Cord 340 267 .25 575 266 .75 663 267 .26 Exhibit E-3 11 of 21 673 267 .53 733 268 .25 687 267 .75 787 270.25 Upstream Bridge Cross Section Data Station Elevation Data num= Elev 268 260 .5 268 Sta Elev Sta 137 270 307 582 691 260 .5 267 Manning 's n Values Sta n Val 137 . 085 594 729 num= Sta n Val 552 . 055 12 Sta 507 610 3 Sta 610 Bank Sta : Left 552 Ineffective Flow Sta L Sta R Right 610 Coeff Contr . . 3 137 582 num= Elev 266.75 Sta L 594 2 Sta R 729 Downstream Deck/Roadway Coordinates num= 14 Elev 266 262 n Val .085 Expan . .5 Elev 266.75 Sta Hi Cord Lo Cord 0 270 .25 Sta Hi Cord Lo Cord 173 268 .25 469 267.16 582 266 .69 673 267 .53 733 268 .25 Downstream Bridge Station Elevation Sta Elev 0 270 Cross Data Sta 173 530 266 .85 594 266 .69 687 267 .75 787 270 .25 Section Data num= 12 Elev Sta 268 340 Elev 266 575 716 260 268 582 258.31 791 270 594 258.31 Manning's n Values Sta n Val 0 . 085 num= Sta n Val 575 .055 3 Sta 663 Bank Sta : Left 575 Ineffective Flow Sta L Sta R Right 663 Coeff Contr. . 3 0 582 num= Elev 266 .75 Sta L 594 Upstream Embankment side slope Downstream Embankment side slope 2 Sta R 7 91 n Val .085 Expan. . 5 Elev 266. 75 Maximum allowable submergence for weir flow Elevation at which weir flow begins Energy head used in spillway design Spillway height used in design 727 Sta 537 635 268 Elev 264 265 Sta 552 665 Sta Hi Cord Lo Cord 340 267 .25 575 266 .75 663 267 .26 727 268 Sta 469 663 Elev 264 262 Sta 530 673 0 horiz. to 1 .0 vertical 0 horiz. to 1.0 vertical .95 Weir crest shape Broad Crested Number of Culverts 1 Culvert Name Culvert #1 Shape Box Rise 4 Span 5 FHWA Chart # 10-90 degree headwall ; Chamfered or beveled inlet FHWA Scale # 1 -Inlet edges chamfered 3/4 inch Solution Criteria = Highest U.S . EG Culvert Upstrm Dist Length n Value 0 116 .014 Entrance Loss Coef .5 Exit Loss Coef 1 Number of Barrels = 2 Upstream Centerline Sta. 584 .5 Elevation Stations Sta . 591. 5 Downstream Elevation Centerline Stations Sta. Sta . 260.5 258.31 Elev 262 266 Elev 262 264 Exhibit E-3 12 of 21 584 .5 591 .5 CULVERT OUTPUT Profile #lOyr Post Culvert ID : Culvert #1 Culv Q (cfs) 403.63 Culv Vel In (ft/s) 10 .09 # Barrels 2 Culv Vel Out (ft/s) 10 .09 Q Barrel (cfs) 201. 82 Culv Inv El Up (ft) 260 .50 E.G. us . (ft) 267 .23 Culv Inv El Dn (ft) 258 .31 w.s . us . (ft) 264 .97 Culv Frctn Ls (ft) 1. 04 Delta EG (ft) 2.19 Culv Ext Lss (ft) Delta WS (ft) 2.17 Culv Ent Lss (ft) 0 . 7 9 E.G. IC (ft) 267 . 4 8 Q Weir (cfs) 0 .36 E.G. oc (ft) 266.74 Weir Sta Lft (ft) 582 .00 Culvert Control Outlet Weir Sta Rgt (ft) 594 .00 Culv WS In (ft) 264 .50 Weir Submerg 0 .00 Culv WS Out (ft) 262.31 Weir Max Depth (ft) 0 .05 Culv Nml Depth (ft) 2.41 Weir Avg Depth (ft) 0 .05 Culv Crt Depth (ft) 3. 70 Wr Flw Area (sq ft) 0 .61 Culv Ful Lngh (ft) 116. 00 Min Top Rd (ft) 266 .69 Warning: Note : During subcritical analysis, the water surface upstream of culvert went to critical depth. During the supercritical calculations a hydraulic jump occurred inside of the culvert. Note : The culvert inlet is submerged and the culvert flows full over part or all of its length . Therefore, the culvert inlet equations are not valid and the supercritical result has been discarded. The outlet answer will be used. CULVERT OUTPUT Profile #lOOyr Post Culvert ID : Culvert #1 Culv Q (cfs) 253.16 Culv Vel In ( ft/s) # Barrels 2 Culv Vel Out (ft/s) Q Barrel (cfs) 126.58 Culv Inv El Up (ft) E.G. us . (ft) 268 .04 Culv Inv El Dn (ft) w.s. us . (ft) 267 .99 Culv Frctn Ls (ft) Delta EG (ft) 1 .27 Culv Ext Lss (ft) Delta WS (ft) 1. 24 Culv Ent Lss (ft) E.G. IC (ft) 264 . 94 Q Weir (cfs) E.G. oc (ft) 268.04 Weir Sta Lft (ft) Culvert Control Outlet Weir Sta Rgt (ft) Culv WS In (ft) 264 .50 Weir Submerg Culv WS Out (ft) 262.31 Weir Max Depth (ft) Culv Nml Depth (ft) Weir Avg Depth (ft) Culv Crt Depth (ft) 2 .71 Wr Flw Area (sq ft) Culv Ful Lngh (ft) 116.00 Min Top Rd (ft) CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb RS : 8077 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta 0 270 173 268 340 266 469 575 260 582 258.31 594 258 .31 663 716 268 791 270 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 .085 575 .055 663 .085 Bank Sta : Left Right Lengths : Left Channel Right 575 663 78 87 82 Ineffective Flow num= 2 Sta L Sta R Elev Sta L Sta R Elev 0 582 266. 7 5 594 791 266.75 CROSS SECTION OUTPUT Profile #lOyr Post 6 .33 6 .33 260 .50 258.31 0 .36 0 .60 0 .31 863.84 303 .40 728 .02 0 .00 1. 35 0 .81 342 .59 266 .69 Elev 264 262 Coe ff Sta 530 673 Contr . .3 Elev 262 264 Expan . .5 Exhibit E-3 13 of 21 E.G. Elev (ft) 265.04 Element Left OB Channel Right OB Vel Head (ft) 2.24 Wt . n -Val . 0.055 w.s. Elev (ft) 262.80 Reach Len . (ft) 78 .00 87 .00 82.00 Crit W.S . (ft) 262 .80 Flow Area (sq ft) 53.92 E.G. Slope (ft/ft) 0 .026597 Area (sq ft) 91 .02 262.23 1. 61 Q Total (cfs) 647 .00 Flow (cfs) 647 .00 Top Wid th (ft) 161 .53 Top Width (ft) 69.51 88.00 4.02 Vel Total (ft/s) 12 .00 Avg . Vel . (ft/s) 12.00 Max Chl Dpth (ft) 4 . 4 9 Hydr . Depth (ft) 4. 4 9 Conv. Total (cfs) 3967 .2 Conv. (cfs) 3967 .2 Length Wtd. (ft) 85 .89 Wetted Per . (ft) 12.00 Min Ch El (ft) 258 .31 Shear (lb/sq ft) 7 . 4 6 Alpha 1. 00 Stream Power (lb/ ft s) 89 .53 Frctn Loss (ft) 0 .51 Cum Volume (acre-ft) 17 .12 4 .90 2 .52 c & E Loss (ft) 1.05 Cum SA (acres) 15 .26 1.14 2 .38 Warning : The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued o n with the calculations . Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicat e the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning : During the standard step iterations, when the assumed water surface was set equal to critical depth, the calculated water surface came back below critical depth. This indicates Note: valid, that there is not a valid subcritical answer . The program defaulted to critical depth. Multiple critical depths were found at this location. The critical depth with the lowest, energy was used . CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev (ft) 266.77 Element Left OB Channel Right OB Vel Head (ft) 0.02 Wt . n-Val . 0.085 0.055 0.085 w.s . Elev (ft) 266.75 Reach Len . (ft) 78 .00 87 .00 82 .00 rit W.S. (ft) 266.75 Flow Area (sq ft) 7 36. 7 5 609.51 78 .15 E.G. Slope (ft/ft) 0 .000171 Area (sq ft) 736.75 609.51 78 .15 Q Total (cfs) 1117.00 Flow (cfs) 308 .20 780.82 27 .98 Top Width (ft) 425.19 Top Width (ft) 297 . 63 88.00 39.56 Vel Total (ft/s) 0.78 Avg . Vel . (ft/s) 0 . 42 1. 28 0.36 Max Chl Dpth (ft) 8.44 Hydr . Depth (ft) 2 . 4 8 6.93 1. 98 Conv. Total (cfs) 85399.7 Conv . (cfs) 23563 .1 59697 . 4 2139.1 Length Wtd . (ft) 84 .07 Wetted Per. (ft) 297 .73 88 .30 39.89 Min Ch El (ft) 258.31 Shear (lb/sq ft) 0 .03 0 .07 0 .02 Alpha 1 .95 Stream Power (lb/ ft s) 0 .01 0 .09 0 .01 Frctn Loss (ft) 0.04 Cum Volume (acre-ft) 26.75 5 .98 4 .38 c & E Loss (ft) 0.04 Cum SA (acres) 17 .89 1.15 3 .51 Warning : The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning : During the standard step iterations, when the assumed water surface was set equal to critical depth, the calculated water surface came back below critical depth. This indicates that there is not a valid subcritical answer . The program defaulted to critical depth. Note: Multiple critical depths wer e found at this location. The critical depth with the lowest, valid, energy was used . CROSS SECTION REACH : AC -lb INPUT Description: RIVER : Trib. of Alum Cr RS : 7985 Exhibit E-3 14 of 21 Station Elevation Data num= 13 Sta Elev Sta Elev Sta Elev Sta 0 270 168 268 307 266 4 91 676 260 690 257 .3 708 260 734 750 267 766 268 785 269 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 .085 676 .055 708 .085 Bank Sta: Left Right Lengths : Left Channel Right 676 708 90 90 90 CROSS SECTION OUTPUT Profile #lOyr Post E.G. Elev (ft) 262 .94 Element Vel Head (ft) 0 .14 Wt . n-Val. w.s. Elev (ft) 262.80 Reach Len . (ft) Crit W.S. (ft) Flow Area (sq ft) E .G. Slope (ft/ft) 0 .002518 Area (sq ft) Q Total (cfs) 647 .00 Flow (cfs) Top Width (ft) 170.62 Top Width (ft) Vel Total (ft/s) 2 .08 Avg. Vel. (ft/s) Max Chl Dpth (ft) 5 .50 Hydr . Depth (ft) Conv. Total (cfs) 12894 .9 Conv . (cfs) Length Wtd . (ft) 90.00 Wetted Per . (ft) Min Ch El (ft) 257 .30 Shear (lb/ sq ft) Alpha 2 .05 Stream Power (lb/ ft Frctn Loss (ft) 0 .25 Cum Volume (acre-ft) c & E Loss (ft) 0 .02 Cum SA (acres) CROSS SECTION OUTPUT Profile HlOOyr Post E .G. Elev (ft) 264 .04 Element Vel Head (ft) 0 .15 Wt. n-Val . w.s. Elev (ft) 263.89 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) :::.G. Slope (ft/ft) 0 .002359 Area (sq ft) Q Total (cfs) 1117.00 Flow (cfs) :'op Width (ft) 240.41 Top Width (ft) ·rel Total (ft/s) 2 .09 Avg. Vel . (ft/s) Max Chl Dpth (ft) 6 .59 Hydr . Depth (ft) Conv. Total (cfs) 23000.0 Conv. (cfs) Length Wtd . (ft) 90.00 Wetted Per. (ft) Min Ch El (ft) 257 .30 Shear (lb/sq ft) Alpha 2 .22 Stream Power (lb/ft Frctn Loss (ft) 0.26 Cum Volume (acre-ft) & E Loss (ft) 0 .05 Cum SA (acres) CROSS SECTION RIVER : Trib. of Alum Cr REACH : AC-lb RS : 7895 INPUT Description : Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta 0 270 78 268 183 266 381 585 260 598 258 611 256 .42 615 630 262 647 264 672.37 266 693 .27 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 . 085 585 .055 622 .085 Bank Sta: Left Right Lengths : Left Channel Right 585 622 85 85 85 CROSS SECTION OUTPUT Profile HlOyr Pos Elev Sta 264 615 262 741 Coef f Contr. .3 Left OB 0 .085 90 .00 129.91 129.91 126.71 110. 75 0 .98 1.17 2525 .3 110. 79 0 .18 s) 0 .18 16.92 15.10 Left OB 0 .085 90.00 286.53 286.53 334.05 178.01 1.17 1. 61 6878 .4 178 .05 0 .24 s) 0 .28 25 .84 17 .46 Elev Sta 264 567 258 622 268 718 .98 Coe ff Contr. .1 Elev 262 265 Expan . .5 Channel 0 .055 90.00 132.88 132.88 460.95 32.00 3 . 47 4 .15 9186 .8 32. 4 6 0 .64 2 .23 4 . 51 1. 02 Channel 0 .055 90.00 167 .59 167 .59 656.87 32.00 3 .92 5 .24 13525.6 32. 46 0 .76 2 .98 5 .21 1.03 Elev 262 260 269 Expan . . 3 Right OB 0 .085 90.00 47 .62 47 .62 59.34 27 .87 1. 25 1. 71 1182 . 7 28.11 0.27 0 .33 2 .48 2 .35 Right OB 0 .085 90.00 79.22 79.22 126.08 30. 4 0 1. 59 2 . 6:. 2596.:. 30.8- 0 .3f 0 .60 4 .23 3 . 45 Exhibit E-3 15 of21 E.G. Elev (ft) 262. 67 Element Left OB Channel Right OB Vel Head (ft) 0.22 Wt . n-Val . 0 .085 0.055 0.085 w.s. Elev (ft) 262.45 Reach Len . (ft) 85.00 85.00 85.00 Crit W.S. (ft) Flow Area (sq ft) 35. 41 158.02 12.44 E .G. Slope (ft/ ft) 0 .003042 Area (sq ft) 35. 41 158.02 12.44 Q Total (cfs) 647 .00 Flow (cfs ) 24 .08 610.69 12.23 Top Width (ft) 108.50 Top Width {ft) 59.69 37 .00 11. 81 Vel Total { ft/s) 3.14 Avg . Vel. {ft/s) 0 .68 3.86 0.98 Max Chl Dpth (ft) 6 .03 Hydr. Depth {ft) 0.59 4.27 1. 05 Conv. Total (cfs) 11730. 8 Conv. (cfs) 436 .6 11072. 5 221.7 Length Wtd. {ft) 85.00 Wetted Per . {ft) 59.80 37 .83 12.08 Min Ch El {ft) 256.42 Shear (lb/sq ft) 0.11 0. 79 0.20 Alpha 1. 43 Stream Power {lb/ ft s) 0.08 3.07 0.19 Frctn Loss {ft) 0.33 Cum Volume (acre-ft) 16. 75 4.21 2.41 c & E Loss {ft) 0 .00 Cum SA {acres) 14 .92 0 .95 2 .31 CROSS SECTION OUTPUT Profile #lOOyr Post E.G. Elev {ft) 263. 7 3 Element Left OB Channel Ri ght OB Vel Head {ft) 0.32 Wt . n -Val . 0 .085 0.055 0 .085 w.s. Elev {ft) 263.41 Reach Len . (ft) 85.00 85.00 85.00 Crit W.S. {ft) Flow Area (sq ft) 135.93 193.62 27 .74 E .G. Slope {ft/ ft) 0 .003699 Area {sq ft) 135.93 193.62 27 .74 Q Total (cfs) 1117.00 Flow {cfs) 135. 75 94 4 . 94 36.30 Top Width (ft) 206.18 Top Width (ft) 149.19 37 .00 19.99 Ve! Total {ft/s) 3 .13 Avg. Ve!. (ft/s) 1. 00 4.88 1. 31 Max Ch! Dpth {ft) 6.99 Hydr . Depth (ft) 0 .91 5 .23 1.39 Conv. Total {cfs) 18365.2 Conv . {cfs) 2232 .0 15536.3 596. 9 Length Wtd. {ft) 85.00 Wetted Per . {ft) 149.31 37 .83 20.32 Min Ch El {ft) 256.42 Shear (lb/sq ft) 0.21 1.18 0.32 Alpha 2.08 Stream Power {lb/ft s) 0.21 5 .77 0. 41 Frctn Loss {ft) 0 .37 Cum Volume (acre-ft) 25.40 4.83 4.12 C & E Loss (ft) 0 .02 Cum SA (acres) 17 .12 0.96 3.39 CROSS SECTION RIVER: Trib. of Alum Cr REACH : AC-lb RS : 7811 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 265.12 1204 .52 259.67 1213.67 255.6 1216.67 255.6 1217 .66 258 .13 1229.86 260 .17 1245.36 260 1251 .36 263.82 1282 .23 264 .39 1306.3 267 1337.07 268 1363. 78 268.5 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .085 1204 .52 .055 1217 .66 .085 Bank Sta : Left Right Lengths : Left Channel Right Coe ff Contr . Expan. 1204 .52 1217 .66 850 850 850 .1 .3 CROSS SECTION OUTPUT Profile #lOyr Post E .G. Elev {ft) 262.33 Element Left OB Channel Right OB Vel Head {ft) 0 .23 Wt . n -Val . 0 .085 0.055 0.085 w.s. Elev (ft) 262 .10 Reach Len . {ft) 850.00 850.00 850.00 Crit W.S. (ft) Flow Area (sq ft) 110.68 65.52 70.65 E.G. Slope (ft/ ft) 0 .005299 Area {sq ft) 110.68 65.52 70.65 Q Total {cfs) 647 . 00 Flow {cfs) 160.29 333.58 153.14 Top Width {ft) 135.28 Top Width (ft) 91 .14 13.14 31.00 Vel Total {ft/s) 2.62 Avg. Vel . (ft/s) 1. 45 5 .09 2 .17 Max Chl Dpth {ft) 6 .50 Hydr . Depth {ft) 1. 21 4.99 2 .28 Conv. Total (cfs) 8888.l Conv. {cfs) 2201 .9 4582 .4 2103.7 Length Wtd. (ft) 850 .00 Wetted Per . {ft) 91 .18 15.73 31.78 Min Ch El (ft) 255 .60 Shear (lb/sq ft) 0. 40 1 .38 0.74 Alpha 2 .18 Stream Power (lb/ ft s) 0.58 7 . 01 1. 59 Frctn Loss (ft) 4 .47 Cum Volume (acre-ft) 16.60 3.99 2 .33 c & E Loss (ft) 0 .01 Cum SA (acres) 14 .78 0.90 2 .27 Exhibit E-3 16 of21