Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
37 DP 04-81
I "" ii!!!! I FLOODPLAIN ANALYSIS FOR SHENANDOAH PHASES 10-17 PRELIMINARY PLAT Location Map NTS APRIL, 2004 Pre pa red By: McClure Engineering, Inc. 1008 Woodcreek Drive, Suite 103 College Station, Texas 77845 (979) 693-3838 FLOODPLAIN ANALYSIS FOR SHENANDOAH PHASES 10-17 PRELIMINARY PLAT Location Map NTS APRIL, 2004 TABLE OF CONTENTS FLOODPLAIN ANALYSIS FOR SHENANDOAH PHASES 10-17 MASTER PRELIMINARY PLAT INTRODUCTION and METHODOLOGY EXHIBITS DRAINAGE AREA MAP HEC-1 HYDROLOGIC ANALYSIS DRAINAGE AREA PARAMETERS HEC-RAS DATA HEC-RAS OUTPUT FLOOD WAY & FLOODPLAIN EXHIBIT HEC-RAS FLOODWAY ANALYSIS (TABULAR) 1 "A" "B" "C" "D" "E" "F" "G" Introduction Floodplain and Floodway Analysis for the North Fork of Spring Creek, College Station, Texas Prepared in conjunction with the Preliminary Plat for Shenandoah Subdivision, Phases 11-17 The Shenandoah Subdivision is located on the south side of Barron Road in southern College Station. Phases I through 9 of the subdivision have either been completed or are nearing completion, and Phase I 0 is a reserve tract near SH 6 that is being considered for development in the near future. The developer of this subdivision recently purchased additional property to the west of those existing phases and is beginning preparations for development of this land. This area will be considered Phases 11-17 of the subdivision. The main drainage facility for this property is the North Fork of Spring Creek. This creek is part of the Primary Drainage System as shown in the College Station Drainage Policy and Design Standards. It is also a federally regulated stream where FEMA has established floodplain and floodway maps for the segment that passes through developed property downstream of the site. The City of College Station 's development policy is to require each developer to extend this mapping through their property. Therefore, this report was prepared to present results of the computer modeling and mapping for the North Fork of Spring Creek through the Shenandoah property. Methodology and Results The initial step in the floodplain analysis was the preparation of a HEC-1 hydrologic model that computed the design flowrates for the drainage basin. Field survey data was collected through the Shenandoah property and on the properties immediately upstream and downstream of the site. Aerial mapping from the City of College Station was used to supplement the survey data on other portions of the stream. Flowrates for the 500 , 100, 50, 25 , and 10-year design storms were prepared under existing, proposed and ultimate development conditions. Results of this model are shown in Exhibit B. For purposes of analyzing the 100-year floodplain, flowrates from the Existing Conditions model was selected for use in subsequent models . The Existing Conditions model was chosen over the Proposed Conditions because the flowrates were higher. This is a result of the site's location in the lower portion of the drainage basin where the peak flows of the stream occur after the peak flows from the site. The Existing Conditions model provides a more conservative estimate of the peak flows in the stream. The HEC-RAS computer model was used for the hydraulic analysis of the floodplain and floodway . The water surface elevation from the existing FEMA map (#48041C0205D) was used as the beginning elevation for the model. All other input data and assumptions are shown in Exhibit D . Tabulated results of the HEC-RAS floodplain analysis are provided in Exhibit E and a map of the floodplain and floodway is shown in Exhibit F . Exhibit G shows tabulated results of the floodway model that was used to determine floodway limits . 2 I FLOOD HYDROGRAP H PACKAGE (HEC-1) MAY 1991 VERSION 4. 0 . lE Lahey F77L-EM /32 version 5.01 Dodson & Associates, Inc. RUN DATE 10/27/03 TIME 13:03:11 ***************************************** x x x x x x xxxxxxx x x x x x x Exhibit B Hec-1 Analysis xxxxxxx xxxxx x x x x x xx xx x xxxxx 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 (9 1 6) 551-1748 THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HECl (JAN 73), HEClGS, HEClDB, AND HEClKW. THE DEFINITIONS OF VARIABLES -RTIHP-AND -RTIOR-HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AHSKK-ON RH-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAHBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATI ON , DSS:WRITE STAGE FREQUENCY, DSS:READ TIHE SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AHPT INFILTRATION KINEMAT I C WAVE: NEW FINITE DIFFERENCE ALGORI THM LINE 4 s 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 4 0 41 42 43 44 LINE 45 46 47 HEC-1 INPUT ID ....... 1. .•.... 2 ....... 3 ....... 4 .....•. S ....... 6 ....•.. 7 ....•.. 8 ....... 9 ...•.. 10 ID TRIB THROUGH PROP. SUBDIVISION IT 3 01Jan01 0000 481 IO s 0 0 JP 3 JR PREC 13.S 11 9.8 8.8 7.4 6.2 4 .5 EVENT 500 100 so 25 10 2Yr. Storm KK DAl KM FILE SpringCR. ihI KM Pl Original Conditions No Shenandoah Development KM P2 Pr oposed Condiition -Development of Shenandoah KM P3 Ultimate Development of Entire Drainage Basin BA .1 326 PB l IN 30 01FEB98 0000 PC .0053 . 0108 .0164 .0223 .028 4 .0347 .0414 . 0483 .0555 .0632 PC .0712 .0797 .0887 .0984 .1089 .1203 .1328 .1467 .1625 .1808 PC .2042 .2351 .2833 .6632 • 7351 • 772 4 .7989 .8197 .8380 .8538 PC .8676 . 8801 . 8914 .9019 .9115 .9206 . 9291 .9371 .9446 .9519 PC .9588 .9653 .9717 .9777 . 9836 .9892 .9947 1.000 LS 75 0 UD .81 KP 2 LS 0 75 \JD -~-- KP 3 LS 0 87 52 UD .55 KK DA2 BA .0486 LS 0 75 UD .37 KP 2 LS 0 75 UD .37 KP 3 LS 0 87 52 UD .25 KK PT.A HC 2 KK RTE A RS STOR -1 SQ l 250 500 750 1000 1 250 1500 1750 2000 2250 SQ 2500 2750 3000 3250 3500 3750 4 000 4250 4500 4750 sv . 07 3. 93 6.46 8. 74 10.86 1 2.82 14.76 16 .59 18 .42 20.29 sv 22.14 23.88 25.57 27. 23 28.83 30.45 32 33 .59 35.15 36. 67 HEC -1 INPUT ID ....... 1. ...... 2 ....... 3 ..•.... 4 ......• S ..•.... 6 ....... 7 ....•.. 8 .•..... 9 ...... 10 KK DA3 BA LS .0672 0 75 PAGE PAGE Exhibit B 1 of7 Exhibit B Hec-1 Analysis 48 UD . 52 49 KP 2 50 LS o 75 51 UD .52 52 KP 3 53 LS o 87 o 54 UD .35 55 KK DA4 56 BA .0713 57 LS o 75 o 58 UD .58 59 KP 60 LS o 75 o 61 UD .58 62 KP 3 63 LS o 87 52 64 UD .4 65 KK PT.B 66 HC 3 67 KK RTE B 68 RS 1 STOR -1 69 SQ 1 250 500 750 1000 1250 1500 1750 2000 2250 70 SQ 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 71 SV .07 4 .33 7 .83 1 1.02 14 .14 17 .81 20 .49 23.08 25 .6 28. 08 72 SV 30 .55 32.98 35.32 37.63 39.96 42 .49 44.69 4 6 .83 48.95 5 1.05 73 KK DAS 74 BA .0766 75 LS o 75 76 UD . 64 77 KP 2 78 LS o 75 79 UD .64 80 KP 3 81 LS 87 52 82 UD .44 83 KK DA6 84 BA .1 20 4 85 LS o 75 o 86 UD . 94 87 KP 2 88 LS o 75 o 89 UD . 94 90 KP 91 LS 87 52 92 UD .64 HEC-1 INPUT PAGE 3 LINE ID .....•. 1. ...... 2 .•...•. 3 ....... 4 ......• 5 •...... 6 ....... 7 .....•. 8 ....... 9 ...... 10 93 KK PT.C 94 HC 3 95 KK RTE c 96 RS 1 STOR -1 97 SQ 250 500 750 1000 1250 1500 1750 2000 2250 98 SQ 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 99 SV .03 2. 47 5. 44 9. 73 10.57 13.11 15.59 17.96 20 .81 23.27 100 SV 25.76 26.47 28. 31 30.28 32 33 .66 35. 3 4 37 . 09 38. 73 4 0. 34 101 KK DA? 102 BA .0954 103 LS o 75 o 104 UD .84 105 KP 2 106 LS o 75 107 UD .84 108 KP 3 109 LS 87 52 110 UD . 57 111 KK PT.D 112 HC 113 KK RTE D 114 RS 1 STOR -1 115 SQ 1 250 500 750 1000 1250 1500 1750 2000 2250 I 116 SQ 2500 2750 3000 3250 3500 3750 4 000 4250 4500 4750 117 SV .04 2 .8 4. 71 6.52 8.5 1 0.38 12.18 14.18 17 .84 20. 89 118 sv 23 . 71 26.44 28.84 31.14 33 .36 35 . 57 37 . 75 39. 94 42.29 44. 64 119 KK DAB 120 BA .0854 121 LS o 75 o 122 UD .5 123 KP 2 124 LS o 75 o 125 UD .5 126 KP 127 LS 87 52 Exhibit B 2 of7 Exhibit B Hec-1 Analysis 128 UD .34 129 KK PT.E 130 RC 2 131 KK RTE E 132 RS 1 STOR -1 133 SQ l 250 500 750 1000 1250 1500 1750 2000 2250 134 SQ 250 0 2750 3000 3250 3500 3750 4 000 4250 4500 4750 135 SV .06 4.4 1 7.4 5 10.3 13.l 1 6.12 18.91 21. 50 24. 52 27. 77 136 SV 30. 46 33. 35 36.66 40.02 42.76 45.42 48. 08 50.84 53.58 56. 41 HEC-1 INPUT PAGE LINE ID ....... 1. ...... 2 •...... 3 ....... 4 ....... 5 .•..... 6 ....... 7 ....... 8 ....... 9 ...... 1 0 137 KK DA9 138 BA . 0389 139 LS 0 75 140 UD .41 141 KP 2 142 LS 75 143 UD .41 144 KP 3 145 LS 0 87 52 146 UD .28 147 KK DAlO 148 BA .0696 149 LS 0 75 0 150 UD .86 151 KP 2 152 LS 0 76 5 153 UD . 84 154 KP 3 155 LS 0 87 52 156 UD .59 157 KK PT.F 158 HC 3 159 KK RTE F 160 RS STOR -1 161 SQ l 250 500 750 1000 1250 1500 1750 2000 2250 162 SQ 2500 2750 3000 3250 3500 37 50 4000 4250 4 500 4750 163 SV .06 5.44 10. 29 14.5 4 19. 01 22. 57 25.85 28 .53 31.18 34.05 164 SV 36 . 71 39.22 41.58 43.75 45.68 4 7 .7 8 4 9.85 51.61 53.48 55.34 165 KK DAll 166 BA .0752 1 67 LS 0 75 168 UD .5 169 KP 2 170 LS 0 82 28 171 UD . 41 172 KP 3 173 LS 0 87 52 174 UD . 34 175 KK PT.G 176 HC 2 177 KK RTE G 178 RS l STOR -1 179 SQ l 250 500 750 1000 1250 1500 1750 2000 2250 180 SQ 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 181 SV .OS 3. 31 6.68 9.93 12.41 14. 7 16 . 6 1 9 .69 22 .84 26.13 182 SV 29.56 33.27 36.9 40 .37 42.7 4 5 .69 4 8.79 50.09 52. 4 54 .57 HEC-1 INPUT PAGE LINE ID ......• 1. •••••. 2 .•.•••• 3 •..••.. 4 •••.... 5 ••..•.• 6 ...••.. 7 ••...•• 8 ......• 9 ...... 10 183 KK DA12 184 BA .0392 185 LS 75 186 UD .47 187 KP 2 188 LS 0 78 1 5 189 UD .4 3 190 KP 3 191 LS 0 8 7 52 192 UD .32 193 KK PT.H 194 HC 2 195 KK RTE H 196 RS STOR -1 197 SQ l 250 500 750 1000 1 250 1500 1750 2000 2250 198 SQ 2500 2 7 50 3000 3250 3500 3750 4000 4250 4500 4750 199 sv .06 3.59 6.53 9.36 12.37 1 5 .19 17.87 20.44 23.l 25 .78 200 SV 28.47 31.17 34.23 37 .63 41. 6 1 44.98 48.29 56.02 52.4 54 . 57 20 1 KK DA13 Exhibit B 3 of7 + + Exhibit B Hec-1 Analysis 202 BA .043 1 203 LS 0 204 UD • 67 205 KP 2 206 LS 0 207 UD .58 208 KP 209 LS 210 UD • 46 211 KK PT.I 212 HC 2 213 zz FLOOD HYDROGRAPH PACKAGE IHEC-1) MAY 1991 VERSION 4. 0 . lE Lahey F77L-EM /32 version 5.01 Dodson & Associates, Inc. RUN DATE 10/27/03 TIME 13:03 :1 1 75 80 22 87 52 TRIB THROUGH PROP. SUBDIVISION 3 IO IT OUTPUT CONTROL VARIAB LES IPRNT 5 PRINT CONTROL I PLOT QSCAL HYDROGRAPH TIME NIUN IDATE I TIME 0 PLOT CONTROL 0. HYDROGRAPH PLOT SCALE DATA MINUTES IN COMPUTATION !Jan 1 S TARTING DATE 0000 S TARTING TIME INTERVAL NQ 481 NUMBER OF HYDROGRAPH ORDINATES JP JR NDDATE 2 1 NDTIME 0000 I CENT 19 COMPUTATION INTERVAL TOTAL TIME BASE ENGLISH UNITS ENDING DATE ENDING TIME CENTURY MARK 0.05 HOURS 24.00 HOURS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT MULT I-PLAN OPTION NP LAN NUMBER OF PLANS MULTI-RATIO OPTION RATIOS OF PRECIPITATION 13.50 11.00 9.80 B.BO 7. 40 6.20 4.50 U.S. ARMY CORPS OF ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET DAVIS, CALIFORNIA 95616 (916) 551-1748 PEAK FLOW AND STAGE (END-OF-PERIOD) SUMMARY FOR MUL TI PLE PLAN-RATIO ECONOMIC COMPUTATIONS FLOWS IN CUBIC FEET PER SECOND , AREA IN SQUARE MILES TIME TO PEAK IN HOURS RATIOS APPLIED TO PRECIPI TATION OPERATION STATION AREA PLAN RATIO 1 RATIO 2 RATIO 3 RATIO 4 RATIO 5 RATIO 6 RATIO 7 13. 50 11. 00 9.BO 8.BO 7.40 6.20 4. 50 HYDROGRAPH AT DAl 0 .13 FLOW 374. 2B9. 247. 213. 166. 127. 73. TIME 12 .10 12.10 12.10 12.10 12.10 12.10 12.15 2 FLOW 374. 2B9. 247. 213. 166. 127. 73. TIME 12 .10 12.10 12 .10 12.10 12.10 12.10 12.15 3 FLOW 552. 446. 395. 352. 292. 241. 168. TIME 11. BO 11. BO 11.BO 11.BO 11. 80 11.BO 11. BO HYDROGRAPH AT DA2 0.05 FLOW 216. 167. 143. 124 . 97. 74. 43 . TIME 11. 65 11. 65 11. 65 11. 65 11. 65 11.65 11. 65 FLOW 216. 167. 143. 1 24. 97. 74. 43. TIME 11.65 11. 65 11. 65 11. 65 11.65 11. 65 11. 65 FLOW 2B3. 229. 203. l Bl. 150. 124. B7. TIME 11.50 11.50 11.50 11.50 11.50 11.55 11.55 2 COMBINED AT PT.A 0. lB FLOW 500. 3B5 . 330. 2B4. 221. 16B. 97. TIME 11. B5 11. B5 11. 90 1 1. 90 11. 90 11.90 11.95 2 FLOW 500. 3B5. 330. 2B4. 221. 168. 97 . TIME 11.85 11.85 11.90 11. 90 11 . 90 1 1.90 11.95 3 FLOW 74B. 604. 535. 477. 396. 326. 228 . TIME 11. 65 11. 65 11. 65 11.65 11. 65 11.65 11.65 Exhibit B 4 of7 ROUTED TO + RTE A HYDROGRAPH AT + DA3 HYDROGRAPH AT + DA4 3 COMBINED AT + PT.B ROUTED TO + RTE B HYDROGRAPH AT + DAS HYDROGRAPH AT + DA6 3 COMBINED AT + PT.C ROUTED TO + RTE C HYDROGRAPH AT + DA7 2 COMBINED AT + PT.D ROUTED TO + RTE D 0 .1 8 0.07 0.07 0.32 0.32 0.08 0 .12 0.52 0.52 0 .10 0. 6 1 0. 61 3 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 3 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 3 FLOW Exhibit B Hec-1 Analysis 486. 12.00 486. 12.00 713. 11.80 250. 11.80 250. 11. 80 342. 11. 60 249. 11.85 2 49 . 11.85 351. 11.65 960. 1 1.85 960. 11.85 1366. 11. 70 906 . 12.05 906. 12 .05 1238. 11.85 252. 11. 90 252. 11 . 90 360. 11. 70 307. 12.20 307. 12.20 457 . 11.90 1438. 12.05 1438 . 12.05 2013 . 11. 80 1397. 12.15 1397. 1 2.15 1923. 11.95 263. 1 2.10 263. 12.10 388 . 11.80 1659. 12.15 1659 . 12 .15 2289 . 11. 90 1633. 12.25 1633. 12.25 2183. 373 . 12.05 373 . 12.05 57 4 . 11.80 193. 11.80 193. 11.80 274. 11.60 192. 11. 85 192. 11. 85 284. 11. 65 737. 11.90 737. 11.90 1097. 11. 70 692. 12 .05 692 . 12.05 1004. 11.85 194. ll.90 194. ll.90 291. 11. 70 237. 12.25 237. 12.25 369. ll.90 1102 . 12.05 1102. 12.05 1632. ll.80 1077 . 12.15 1077. 12.15 1564. 11.95 202. 12.10 202. 12 .10 314. 11. 80 1280. 12.15 1280. 12.15 1863 . 11. 90 1261. 12.25 1261. 12.25 1796. 319. 12 .05 319 . 12.05 506 . 11.80 166. 11.80 166. 11.80 241. 11. 60 165. 11.85 165. 11. 85 251. 11. 65 628. 1 1.90 628. 11.90 966. 11. 70 588 . 12.10 588. 12 .10 884. 1 1.85 167. 11.90 167. 11. 90 257. 11. 70 203. 12 .25 203. 1 2.25 327. 11.90 939. 12.05 939. 12.05 1438. 11.80 933. 1 2.15 933. 1 2.15 1379. 11.95 174. 12.15 174. 12.15 278. 11. 80 1106. 12 .15 1106. 12 .15 1643. 11.90 1074. 12 .25 1 074. 12 .25 1603. 273. 12.10 273. 12.10 450. 11.80 143 . 11. 80 143. 11. 80 2 1 3. 1 1. 60 142. 11 . 85 1 4 2. 11. 85 224 . 11. 65 532. 11.95 532. 11.95 858. 11. 70 500. 1 2 .1 0 500. 1 2 .1 0 784. 11.85 144. 11. 90 144. 11.90 230. 11. 70 175 . 1 2 .25 175. 12 .25 291. 11.90 802 . 12 .10 802. 12.10 1276. 11 . 80 757 . 12.30 757 . 12.30 1227. 11.95 1 50. 12.15 150. 12.15 2 4 8. 11.80 900. 12.30 900. 12.30 14 63. 11 .90 886. 12.35 886. 12.35 1430. 209. 12 .10 209. 12 .10 372. 11.80 112. 11.80 112. 11.80 175. 11.60 111. 11. 85 111. 11. 85 186. 11.65 413. 11.90 413. 11.90 706 . 11. 70 386. 12 .10 386. 12.10 642. 11.85 112. ll.90 112. 11.90 191. 11 . 70 136 . 12.25 136. 12 .25 242 . 11.90 621. 12 .10 621. 12 .10 1051 . 11. 85 588 . 12.30 588. 12.30 1025. 11.90 117. 12 .15 117. 12.15 205. 11.80 701. 12 .25 701. 12 .25 1226. 11.90 694 . 12 .35 694. 12.35 1187. 1 60. 1 2.15 160. 12.15 303. 11.80 85. 11.80 85. 11.80 141. 11. 60 85 . 11.85 85. 11.85 153. 11.65 314. 11.90 314. 11.90 571. 11. 70 292. 12.15 292. 12.15 517 . 11.85 85. 11.95 85. 11.95 157. 11. 70 104. 1 2 .25 104 . 12.25 199. 11.90 471. 12.10 471. 12.10 854. 11.85 454. 1 2 .25 454. 1 2.25 809. 12.00 89 . 12.15 89. 12.15 1 69 . 11.80 541. 12 .25 541. 12.25 963. 11.95 534. 12.35 534. 1 2.35 928. 92 . 12.15 92. 12.15 206 . 11.85 49. 11.80 49. 11. 80 94. 11. 60 49. 11. 90 49. 11.90 107. 11. 65 182 . 11. 95 182. 11. 95 387 . 11. 70 167. 12. 20 167. 12.20 350. 11.90 50. 11. 95 50. 11. 95 110. 11. 70 60. 12 .30 60. 12.30 139. 11.90 270. 12.15 270. 12.15 584. 11. 85 263. 12.30 263. 12.30 543. 12.00 52. 1 2. 20 52 . 12 .20 118. 11.80 31 4. 12.25 314. 12 .25 650. 11.95 309 . 12.40 309. 12.40 640. Exhibit B 5 of7 HYDROGRAPH AT + 2 COMBINED AT + ROUTED TO + HYDROGRAPH AT + HYDROGRAPH AT + 3 COMBINED AT + ROUTED TO + HYDROGRAPH AT + 2 COMBINED AT + ROUTED TO + HYDROGRAPH AT + 2 COMBINED AT + DAB 0.09 PT.E o. 10 RTE E o. 10 DA9 0.04 DAlO 0.07 PT.F 0.81 RTE F o. 01 DAll 0.08 PT.G 0.88 RTE G 0.88 DA12 o. 04 PT.H 0.92 3 2 2 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 3 FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME FLOW TIME Exhibit B Hec-1 Analysis 12.05 326. 11. 75 326. 11. 75 451. 11. 60 1812. 12 .20 1812. 12 .20 2373. 12.00 1765. 12.35 1765. 12.35 2301. 12.15 165. 11.65 1 65 . 11. 65 220. 11.55 189. 12.15 196. 12 .10 278. 11.85 2001. 1 2 . 30 2005. 12. 30 2580. 12.10 1951. 12.4 5 1955. 12 . 4 5 2520. 12. 25 287. 11. 75 352. 11. 65 397. 11.60 2063. 1 2 .40 2050. 1 2 .40 2641. 12.20 2007. 1 2.55 1995. 1 2.55 2558. 12 .35 155. 11. 75 171. 11. 70 211. 11. 60 2052. 12.55 2037. 12. 55 12.05 251. 11. 75 251. 11. 75 364. 11. 60 1400. 12. 20 1400. 12.20 1969. 11 .95 1354. 12.35 1354. 12.35 1901. 12.15 127. 11. 65 127. 11. 65 178. 11.55 145. 12.15 152. 12.10 224. 11. 85 1533. 12.35 1537. 12.30 2138. 12.05 1474. 12.50 1477. 12.50 207 4. 12.20 221. 11. 75 280. 11.65 321. 11. 60 1555 . 12 .45 1547. 1 2.45 2 174. 1 2.20 1529. 12.60 1522. 12.60 2104. 12.35 119. 11. 75 134. 11. 70 170. 11. 60 1563. 12.55 1556. 12 .55 12.00 216 . 11. 75 216. 11. 75 322. 11. 60 1192. 12. 20 1192. 12. 20 17 56. 11.95 1142. 1 2.35 1142. 1 2.35 1694. 12.10 109. 11. 70 109. 11. 70 157. 11.55 125. 12.1 5 131. 12.10 199. 11. 85 1296. 12.35 1300. 12.35 1906. 12.05 1234. 12.50 1238. 12.50 1836. 12.20 190. 11. 75 246 . 11.65 284. 11. 60 1303. 12.50 1298. 12.50 1925. 12.20 1285. 12.60 1280. 12.60 1857. 12.35 102. 11. 75 117. 11. 70 151. 11.60 1313. 12 .60 1307. 12.60 12. 00 186. 11. 75 186. 11. 75 288. 11. 60 975. 12.30 975. 12.30 1567. 11.95 954. 12.45 954. 12. 45 1 502. 12.10 94. 11. 70 94. 11. 70 140. 11. 55 108. 12.1 5 113. 12.15 177. 11. 85 1081. 12.40 1084. 12 .40 1690. 12.10 1037 . 12.60 1040. 12.60 1618. 12.25 164. 11. 75 217. 11. 65 253. 11.60 1090 . 12.55 1088 . 12.55 1696. 12.20 1076. 12.65 1074. 12.65 1644. 12.35 88. 11. 75 102. 11. 70 1 35. 11.60 1099. 12.65 1097. 12.65 12.00 145. 11. 75 145. 11. 75 239 . 11.60 765. 12.30 765 . 12.30 1300. 12.00 748. 12.45 748 . 12.45 1232. 1 2.10 73. 11. 70 73 . 11. 70 117. 11.55 84. 12.15 89. 12.15 147. 11. 85 848. 12.40 851. 12.40 1388. 12.10 808. 1 2.60 811. 12.60 1307 . 12.25 128. 11. 75 177 - 11.65 210. 11. 60 850. 12 .55 850. 12.55 1366. 12.20 838. 12. 70 838. 12.70 1341. 12.30 69. 11. 75 82 . 11. 70 112. 11.60 855. 12. 70 855. 12. 70 12 . 05 110. 11. 80 110. 11. 80 197. 11.60 590. 12. 30 590. 12.30 101 2. 12 .05 574. 1 2. 45 574. 12. 45 973. 12.1 5 56 . 11. 70 56. 11. 70 96. 11.55 64. 12 .20 69. 12.15 1 21. 11.85 651. 12.40 654. 12.40 1097. 1 2.10 616. 12. 60 619. 12.60 1031. 12.30 97. 11. 80 143 . 11.65 174. 11. 60 648. 12.60 650 . 12.60 1075. 12 . 30 632. 12 .75 634. 12.75 1057. 12.40 53. 11. 75 64 . 11. 70 92. 11.60 645. 12.75 647. 12.75 1 2. 05 64. 11. 80 64. 11. 80 138. 11. 60 342. 12.30 342. 12.30 700. 12.00 330. 12. 50 330. 12.50 677. 12.15 33. 11. 70 33. 11. 70 67. 11. 55 37. 12 .20 41. 12 .15 85. 11.85 373. 12.45 376. 1 2 . 45 763. 12 .10 348. 1 2 . 70 351. 12. 70 716. 12.30 57. 11.80 94. 11.65 1 2 1. 11. 60 366. 12. 70 370 . 12.65 747. 12 .30 357. 1 2.85 361. 12. 85 725. 12.45 31. 11. 75 40. 11. 70 65. 11.60 364. 12.85 369. 12. 80 Exhib it B 6of 7 Exhibit B Hec-1 Analysis 3 FLOW 2603. 2141. 1892. TIME 12.35 12.30 12.30 ROUTED TO + RTE H 0.92 FLOW 2017. 1537. 1284. TIME 12. 70 12.70 12.75 FLOW 2003. 1530. 1279 . TIME 12. 70 12.70 1 2.70 FLOW 2560. 2099. 1852. TIME 12.45 12.45 12.45 HYDROGRAPH AT + DAl3 0. 04 FLOW 138. 106. 91. TIME ll.95 ll. 95 ll.95 FLOW 163. 129 . 113. TIME ll.85 ll. 85 11.85 FLOW 198. 160. 142. TIME ll. 70 11. 70 ll. 70 2 COMBINED AT + PT. I 0. 96 FLOW 2081. 158 4. 1325. TIME 12.65 12.70 1 2 .70 FLOW 2060. 1573. 1 317. TIME 12.65 12.70 12. 70 FLOW 2622. 2150. 1897. TIME 12.45 12.4 5 12.40 ++• NORMAL END OF HEC-1 ... 1673. 1368. 12. 30 12. 30 1081. 839. 12.8 0 12 .85 1078. 840 . 1 2.80 12 . 85 1 639. 1328 . 12 .45 12 .45 79. 61. ll.95 ll.95 99. 80. 11 .85 ll.85 126 . 105. ll. 70 ll. 70 11 1 2. 864. 1 2 .80 12. 80 1108 . 864. 1 2 . 75 12.80 1679. 1362 . 12 .4 5 12 .45 1075. 12.40 634. 12. 90 637 . 12.85 1051. 12 .50 47. ll.95 64. l l. 85 87. ll. 70 652. 12. 85 655. 12.85 1076. 12.50 737. 12.45 358 . 13.00 363 . 12.95 722. 12 .55 27. 12. 00 41. l l.85 60. ll. 70 368. 12.95 373. 12.95 738. 12.55 Exhibit B 7 of7 General AREA AREA AREA # ACRES MILES 1 84.85 0.1326 2 31.10 0.0486 3 43.00 0.0672 4 45.63 0.0713 5 49.02 0.0766 6 77.08 0.1204 7 61.04 0.0954 8 54 .64 0.0854 9 24.90 0.0389 10 44.54 0.0696 11 48 .14 0.0752 12 25 .08 0.0392 13 27.59 0.0431 HYD Exhibit C Drainage Area Parameters PLAN 1 VERT SLOPE CURVE LAG LENGTH DROP FT/FT # HOURS 3392 49 .88 0.015 75 0.81 1701 39 .68 0.023 75 0.37 2231 40 .86 0.018 75 0.52 2795 58 .16 0.021 75 0.58 2604 39.61 0 .015 75 0.64 4287 68.41 0 .016 75 0 .94 3353 45 .18 0 .013 75 0.84 2259 45 .2 0.020 75 0.50 1616 28.19 0 .017 75 0.41 3170 36.69 0 .012 75 0 .86 2199 41.87 0 .019 75 0.50 1907 32.78 0.017 75 0.47 2467 31.32 0.013 75 0 .67 PLAN2 CURVE # 75 75 75 75 75 75 75 75 75 76 82 78 80 PLAN3 LAG CURVE LAG HOURS # HOURS 0 .81 87 0 .55 0.37 87 0 .25 0 .52 87 0.35 0.58 87 0.40 0.64 87 0.44 0 .94 87 0 .64 0.84 87 0 .57 0.50 87 0.34 0.41 87 0.28 0.84 87 0.59 0.41 87 0.34 0.43 87 0.32 0.58 87 0.46 Exhibit C Drainage Area Parameters 0317-Floodplain-lag .xls Exhibit D HEC-RAS Data 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 xx xx x x x x x x x x x x x xx x x xxxxxxx xxxx x xxx xx xx xxxxxx x x x x x x x x x x x x x x x x x xxxxxx xx xx x x x PROJECT DATA Project Title: Shendandoah Phase 11 Flood Plain Analysi Project File 0317-2.prj Run Date and Time: 4/1/2004 2:30 :4 9 PM Project in English units PLAN DATA Plan Title: NF Spring Creek Analysis x x x xx xx x x xxxx x x xxxxx Plan File f:\Shenandoah\phase 11\Flood Plain Analysis\Hec-Ras\0317-2.p04 Geometry Title: Existing Conditions Geometry File : f:\Shenandoah\phase 11\Flood Plain Analysis\Hec-Ras\0317- 2 .gOl North Fork Spring Creek Analysis Flow Title Flow File f:\Shenandoah\phase 11\Flood Plain Analysis\Hec-Ras\0317- 2.fOl Plan Summary Information: Number of: Cross Sections Culverts _Bridges 26 0 0 Mulitple Openings Inline Weirs Computa tiona l 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 Exhibit D 1of14 FLO W Flow Friction Slope Method: Computational Flow Regime: DATA Exhibit D HEC-RAS Data Average Conveyance Subcritical Flow Title: North Fork Spring Creek Analysis Flow File f:\Shenandoah\phase 11\Flood Plain Analysis\Hec-Ras\0317-2.fOl Flow Data (cfs) Riv er Reach RS 500yr Ex. 500yr Pr . 500yr Ult. lOOyr Ex. lOOyr Pr . lOOyr Ult. 50yr Ex . 50yr Pr . N .F . Spring Cree Reach A 12650.45 500 500 784 385 385 604 330 N.F. Spring Cree Reach A 11306.79 960 960 1366 737 737 1097 628 N .F . Spring CreeReach A 9686.47 1438 1438 20 1 3 1102 110 2 1632 939 N . F. Spring CreeReach A 8697 .48 1659 1659 2289 1280 1280 1863 1106 N .F . Spring CreeReach A 7318 .65 1812 1812 2373 1400 14 0 0 1969 1192 N .F. Spring CreeReach A 5 71 6 .37 2001 2005 258 0 1533 1 537 2138 1296 N .F . Spring Cree Reach A 4 655.57 2063 2050 2641 1555 1547 2174 1303 N .F . Spring CreeReach A 3 7 25.17 2052 2037 26 0 3 1563 1556 2141 1313 Ri ver Reach RS 50yr Ult . 25yr Ex . 25yr Pr . 25yr Ult . lOyr Ex. lOyr Pr . lOyr Ult. N .F . Spring CreeReach A 1 2650.45 535 284 28 4 47 7 22 1 221 396 N .F. Spring CreeReach A 11 3 0 6.79 966 532 532 858 4 1 3 413 706 N .F. Spring CreeReach A 9686.47 1438 802 802 1276 621 621 1 051 N .F. Spring CreeRea c h A 869 7.48 1643 900 900 1463 70 1 701 1226 N .F . Spring CreeReach A 7318 .65 1756 975 97 5 1567 765 765 1300 N .F. Spring Cree Reach A 5716 . 37 1906 1081 108 4 1690 848 851 1388 N.F . Sprin g CreeReach A 4 655.57 1925 1090 1088 1696 850 850 1366 N .F . Spring CreeReach A 3725.17 1892 1099 109 7 1673 855 855 1368 Boun dary Conditions 330 628 939 1106 1192 130 0 1298 130 7 Exhibit D 2 ofl4 Exhibit D HEC-RAS Data River Reach Profile Upstream Downstream N.F. Spring CreeReach A 500yr Ex. Normal s .0765 No rmal s = .0179 N.F. Spring CreeReach A 500yr Pr. Normal s .0765 No rmal s = .0179 N.F. Sp r ing CreeReach A 500yr Ult. Normal s .0765 Normal s = .0179 N.F. Spring CreeReach A lOOyr Ex. Normal s . 0765 Known WS = 279 N.F. Spring CreeReach A lOOyr Pr. Normal s . 0765 Known WS = 279 N.F. Spring CreeReach A lOOyr Ult . Normal s .0765 Known WS = 279 N.F. Spring CreeReach A 50yr Ex. Normal s .0765 Normal s = .017 9 N.F. Spring CreeReach A 50yr Pr. Normal s .0765 Normal s = .0179 N.F. Spring CreeReach A 50yr Ult. Normal s .0765 Normal s = .0179 N.F. Spring CreeReach A 25yr Ex. Normal s .0765 Normal s = .0179 N.F. Spring CreeReach A 25yr Pr. Normal s .07 65 Normal s = .017 9 N.F. Spring CreeReach A 25yr Ult. Normal s .0765 Normal s = .0179 N.F. Spring CreeReach A lOyr Ex. Normal s .07 65 Normal s = .0179 N.F. Spring CreeReach A lOyr Pr. Normal s .0765 Normal s = .0179 N.F. Spring CreeReach A lOyr Ult. Normal s .0765 Normal s = .0179 GEOMETRY DATA Geometry Title: Existing Conditions Geometry File f:\Shenandoah\phase 11\Flood Plain Analysis\Hec-Ras\0317-2.gOl CROSS SECTION REACH: Reach A INPUT Description: Station Elevatio n Sta Elev 500 323.2 910 318 1207 324 Manning's n Value s Sta n Val 500 .075 RIVER: N.F. Spring Cree RS : 12650. 45 Data num= 12 Sta Elev Sta Elev 565 322 635 321. 5 945 317.3 1018 318 1314 326 num= 3 Sta n Val Sta n Val 910 .0 35 1018 .07 5 Sta Elev Sta Elev 787 320 848 319.6 1032 320 1103 322 Exhibit D 3of14 Exhibit D HEC-RAS Data Bank Sta: Left Right Lengths: Lef t Channel Right Coe ff Contr. Expan. 910 ] 01 8 16_8_23 169.86 171. 24 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS : 1 2 480.59 INPUT Description: Station Elevation Data num= 10 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 372 324 419 323.4 500 322 612 320 832 318 878 316 905 318 966 320 1025 322 1118 324 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 372 .07 5 832 .035 905 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 832 905 334.51 349.03 347 .07 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 1 2 131.56 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 324 588 322 647 320 744 318 833 316.8 910 316 997 315.73 1089 316 1186 318 1266 320 1361 322 1444 324 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .07 5 910 .035 1089 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 910 1089 395.32 377 .53 368.27 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 11754.0 3 INPUT Description: Station Elevation Data num= 16 Sta Elev Sta Elev Sta Elev Sta Elev Sta El ev 500 324 627 322 721 320 776 318 898 3 16 958 314 990 313.72 1015 314 1059 314 .25 1158 314 1277 3 1 5 .1 1350 316 1427 318 151 2 320 1584 322 1685 324 Manning's n Valu es num= 3 Sta n Val Sta n Val Sta n Val 500 .075 958 .035 1015 .07 5 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 958 1015 454 .41 447.24 431.89 .1 .3 Exhibit D 4of14 Exhibit D HEC-RAS Data CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 11306.79 INPUT Description: Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 320 668 318 853 316 1033 314 1179 312 1194 310 1245 309.14 1255 310 1356 311. 8 14 64 310 1528 312 1620 314 1695 316 1767 318 1841 320 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .075 1194 .035 1255 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1194 1255 465.98 479.44 473.4 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 10827.35 INPUT Description: Station Elevation Data num= 19 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 320 583 318 657 317 755 316 854 314 950 313.2 1036 312 1152 310 1206 309.5 1248 310 1296 309 1344 308 1452 309 1558 310 1631 312 1724 314 1782 316 1873 318 1926 320 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .075 1296 .035 1452 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1296 1452 363.31 368.81 369.02 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 10458.54 INPUT Description: Station Elevation Data num= 24 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 320 611 318 736 316 816 314 916 312 1022 310 1244 308 1267 306 1277 305.82 1282 306 1297 307.4 1422 307.8 1507 306 1613 304 1630 302.32 1637 304 1642 306 1650 308 1678 310 1718 312 1804 314 1890 316 1951 318 2000 320 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .075 1267 .035 1282 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1267 1282 389.39 392.88 380.45 .1 .3 Exhibit D 5of14 Exhibit D HEC-RAS Data CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS : 10065.66 INPUT Description: Station Elevation Data num= 25 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 100 316 1067 314 1158 312 1278 310 1349 308 1528 306 1664 304 1675 302 .7 3 1687 304 1755 306 1779 306 .25 1791 306 1842 304 1973 302 1978 300 1983 299.05 1989 300 1994 302 1998 304 2058 306 2100 308 2156 310 2203 312 2283 314 2359 316 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 100 .075 1664 .0 35 1687 .075 Bank Sta : Left Right Lengths: Left Channel Righ t Coef f Contr. Expan. 1664 1687 388 .77 379 .1 9 369.65 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS : 9686.47 INPUT Description : Station Elevation Data num= 27 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 318 1075 316 1183 314 1291 312 1403 310 1498 309 .3 1662 308 1775 306 1962 304 2020 302 2029 300 2050 298 .89 2078 300 2 187 302 2277 303 2348 302 2369 300 2382 298.2 2393 300 2403 302 2409 304 2457 306 2509 308 2563 310 2616 312 2711 314 2 79 3 315.8 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .075 2029 .035 2078 .07 5 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr . Expan . 2029 2078 575.24 610.14 584 .85 .1 .3 CROSS SECTION RIVER: N.F . Spring Cree REACH: Reach A RS: 9076 .33 INPUT Description : Station Elevation Data num= 15 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 310 568 308 699 306 863 304 1133 302 1339 300 1400 298 1409 296 .54 1414 298 1418 300 1655 302 17 7 5 304 1868 306 1957 308 2048 310 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .0 75 1400 .035 1414 .0 7 5 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. Exhibit D 6 of14 Exhibit D REC-RAS Data 1400 1414 372.4 378.85 384.61 .1 . 3 CROSS SE CTION RIVER: N.F. Spring Cree REACH: Re a c h A RS: 8697.48 INPUT Descript ion: Station Elevation Data num= 26 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 310 628 308 705 306 881 304 1106 302 1240 300 1293 299.75 1381 300 1487 298 1508 2 98.5 1587 298 1590 296 1595 294 1599 293.72 1603 2 94 1608 296 1616 298 1659 298 1667 300 1685 300.25 1705 300 1763 298 1775 300 1883 302 1967 304 2044 306 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .075 1590 .035 1608 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Ex pan. 1590 1608 74.23 76.02 67. 72 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 8621.46 INPUT Description: Station Elevation Data num= 27 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 310 584 308 697 306 856 304 972 302 1225 300 1482 298 1490 297.5 1497 298 1517 298.5 1534 298 1543 296 1550 294 1555 293.9 1560 294 1586 296 1622 297. 4 1652 296 1659 294 1666 293.56 1673 294 1708 296 1774 300 1884 302 1970 304 2042 306 2125 308 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .075 1659 .035 1673 .075 Bank Sta: Left Right Lengths: Left Channel Right Coef f Contr. Expan. 1659 1673 1206.4 1302.81 1243.98 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 7318.65 INPUT Description: Station Elevation Data num= 2 7 Sta Elev Sta Elev Sta Elev Sta Elev Sta El e v 1000 300 1045 299.5 1183 298 1258 296 1272 295.5 1296 296 1321 296.5 1342 296 1348 294 1415 293.8 1462 294 1489 294.2 1519 294 1528 292 1543 290 1573 288.39 1604 290 1624 292 1635 294 1684 294. 5 1740 294 1764 293.8 1782 294 1839 296 1974 298 2067 300 2130 302 Exhibit D 7of14 Exhibit D HEC-RAS Data Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1543 .035 1604 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1543 1604 255 .41 248.4 251 .61 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 7070.25 INPUT Description: Station Elevation Data num= 19 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 297 1059 296 1085 294 1096 292 1108 290 1251 288 1259 287.61 1263 288 1 269 290 1308 292 1353 294 1423 294 .5 1487 294 1516 293 .8 1545 294 1608 294. 5 1695 296 1789 298 1832 300 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1251 .035 1263 .07 5 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Con tr. Expan. 1251 1263 741. 68 768 .77 652 .7 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 6301. 48 INPUT Description : Station Elevation Data num= 28 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 300 1182 298 .5 1353 298 141 8 296 1590 294 1652 292 1691 291.5 1730 292 174 4 292 .2 1758 292 1808 290 1833 288 1842 286 1847 285.86 1852 286 1865 288 1883 290 20 1 2 292 2040 292.5 2068 292 2079 290 2091 289 .8 2106 290 2 1 23 292 2247 294 2358 296 2 4 25 298 2506 300 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .07 5 1833 .0 35 1865 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1833 1865 569 .1 585 .11 544.1 9 .1 . 3 CROSS SECTION RIVER : N.F. Spring Cree REACH: Reach A RS : 5716. 37 INPUT Description: Station Elevation Data num= 26 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 300 1140 298 1235 296 1329 294 1496 292 1569 290 1579 288 1592 286 1594 284 1617 283 .81 Exhibit D 8of14 Exhibit D HEC-RAS Data 1629 284 1655 286 1674 288 1701 290 1803 291.4 1930 290.8 1986 290 2000 288 2050 286 2087 288 2155 290 2169 292 2277 294 2362 296 2420 298 2459 300 Manning's n Values nurn= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1592 .035 1629 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1592 1629 285.33 324.89 325.59 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 5391. 48 INPUT Description: Station Elevation Data nurn= 25 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 300 1112 298 1172 296 1285 294 1432 292 1540 290 1561 288 1620 286 1632 284 1645 283.01 1659 284 1701 285 1732 284 1764 282.98 1796 284 1846 286 1913 284.5 1974 286 2131 288 2162 290 2173 292 2288 294 2349 296 2393 298 2427 300 Manning's n Values nurn= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1632 .035 1659 .075 Bank Sta: Left Right Lengths: Left Channel Right Coef f Contr. Expan. 1632 1659 384.13 393.99 374.89 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 4997.49 INPUT Description: Station Elevation Data nurn= 16 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 292 1136 290 1228 288 1407 286 1423 284 1434 282.07 1450 284 1474 286 1529 288 1659 288.9 1756 290 1868 292 1972 294 2015 296 2085 298 2149 300 Manning's n Values nurn= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1423 .035 1450 .075 Bank Sta: Left Right Lengths: Left Channel Right Coef f Contr. Expan. 1423 1450 258.49 208.06 205.49 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 4789.43 INPUT Description: Station Elevation Data nurn= 32 Exhibit D 9of14 Exhibit D HEC-RAS Data Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 296 1063 294.8 1164 294 1183 292 1201 290 1249 288 1292 287 .6 1341 288 1355 290 1377 290.2 1395 290 1454 288 1491 286 1498 284 1506 282 1583 280 1592 279 .4 6 1596 280 1607 282 1660 284 1686 285 .5 1705 284 1742 282 1744 280 1747 279 .8 1753 280 1772 282 1784 284 1789 286 1915 287.3 1954 288 2132 290 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1583 .035 1596 .075 Bank Sta: Left Right Lengths: Left Channe l Right Coe ff Contr. Expan . 1583 1596 194.38 134 .0 5 123 .4 9 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH : Reach A RS: 4655.57 INPUT Description: Station Elevation Data num= 22 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 296 1018 294 1076 292 1114 290 1130 288 1157 286 1173 284 1189 282 1218 280 1229 278 .83 1236 280 1244 282 1255 284 1324 285 .8 1389 286 1434 286.5 1474 286 1485 285 .8 149 9 286 1668 287 1750 288 1883 290 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1218 .0 35 1236 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan . 1218 1236 364 .38 343 .4 9 312.53 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 4313.39 INPUT Description: Cross Section from Survey Field Data Station Elevation Data num= 25 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 297 .85 1038 296 .53 1099 294 .7 9 114 3 292 .95 1174 291.1 1193 29 0.2 1 227 288 .5 8 1274 284 . 71 1 292 282 .68 1305 281. 85 1311 281. 02 1313 277.46 1320 277 .68 1322 280 .13 1345 282.35 1385 282.87 1439 282.07 1465 281. 58 1499 284.31 1513 285.12 1520 285 .7 3 1580 286.39 1622 287.15 1728 288 1855 290 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 10 00 .075 1311 .035 1322 .07 5 Bank Sta: Left Right Lengths : Left Channel Right Coe ff Contr . Expan. 1311 1322 601 588 425 .1 . 3 CROSS SECTION RIVER : N.F . Spring Cree Exhibit D 10of14 Exhibit D HEC-RAS Data REACH: Reach A RS : 3725 .17 INPUT Description: Cross Section from Survey Field Data Station Elevation Data num= 21 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 812 290 848 288 1000 286 .4 5 1079 284 .84 1130 284 .39 1171 283. 72 1214 283 .7 8 1217 278.77 1231 27 6. 93 1234 278 .94 1271 279.15 1298 277 .86 1314 281. 07 1370 279.34 1418 279 .06 1453 277 .87 1476 280.02 1514 284 .81 1 557 287.47 1643 288 1730 290 Manning 's n Values num= 3 Sta n Val Sta n Val Sta n Val 812 .075 1217 .0 35 1234 .075 Bank Sta: Left Right Lengths: Left Channel Right Coef f Contr. Expan. 1217 1234 350 423 360 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS : 3302 .88 INPUT Description : Cross Section from Survey Field Data Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 0 284 .27 82 284 .6 155 284. 72 164 284 195 279 232 278 242 275 255 275 266 280 .56 308 283 .1 7 404 282 .7 551 285 .7 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 0 .075 232 .035 266 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan . 232 266 220 2 10 180 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH : Reach A RS : 3092.13 INPUT Description: Cross Section from Surv ey Field Data Station Elevation Data num= 20 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 329 288 410 286 508 284 610 282 .8 785 282 .3 876 282 898 280 926 278 10 00 277.81 1041 277.34 1079 2 7 6.18 1131 275.19 1139 272 . 78 1151 2 74.59 1157 282 .68 1190 282.81 1237 283 .29 1298 284 .62 1364 286 1460 288 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 329 .075 1131 .035 1151 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr . Expan. 1131 1151 335.36 332 .56 361. 25 .1 .3 CROSS SECTION RIVER: N.F. Spring Cree Exhibit D 11of14 Exhibit D HEC-RAS Data REACH: Reach A RS: 2759.57 INPUT Description: Station Elevation Data num= 21 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 515 286 606 284 717 282.8 908 282.3 944 28 2 1000 280.8 1089 280 1113 278 1132 276 1146 274 1156 272 1164 271. 65 1175 272 1182 274 1188 280 1258 280.75 1333 282 1440 283.3 1522 284 1584 284.6 1679 286 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 515 .075 1156 .035 1175 .075 Bank Sta: Left Right Lengths: Left Channel Right Coe ff Contr. Expan. 1156 1175 539.93 547.51 483.15 .1 . 3 CROSS SECTION RIVER: N.F. Spring Cree REACH: Reach A RS: 2212.06 INPUT Description: Station Elevation Data num= 12 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 280.5 1046 280 1077 278 1110 276 1122 274 1169 272 1187 270. 67 1241 272 1247 274 1279 276 1284 278 1309 280 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .075 1169 .035 1241 .075 Bank Sta: Left Right Coe ff Contr. Expan . 1169 1241 .1 . 3 SUMMARY OF MANNING'S N VALUES River:N.F. Spring Cree Reach River Sta. nl n2 n3 Reach A 12650.45 .075 .035 .075 Reach A 12480.59 .075 .035 .075 Reach A 12131. 56 .075 .035 .075 Reach A 11754.03 .075 .035 .075 Reach A 11306.79 .075 .035 .075 Reach A 10827.35 .075 .035 .075 Reach A 10458.54 .075 .035 .075 Reach A 10065.66 .075 .035 .075 Reach A 9686.47 .075 .035 .075 Reach A 9076.33 .075 .035 .075 Reach A 8697.48 .075 .035 .075 Reach A 8621. 46 .075 .035 .075 Exhibit D 12of14 Exhibit D HEC-RAS Data Reach A 7318.65 .075 .0 35 Reach A 7070.2 5 .075 .0 35 Reach A 6301.48 .075 .035 Reach A 5716.37 .075 .035 Reach A 5391.48 .075 .0 35 Reach A 4997.49 .075 .035 Reach A 4789.43 .075 .0 35 Reach A 4655.57 .075 .035 Reach A 4313.39 .075 .035 Reach A 3725 .17 .075 .0 35 Reach A 3302 .88 .075 .035 Reach A 3092 .13 .075 .035 Reach A 2759 .57 .075 .035 Reach A 2212.06 .075 .035 SUMMARY OF REACH LENGTHS River: N.F. Spring Cree Reach River Sta. Left Channel Reach A 12650.45 168.23 169.86 Reach A 12480.59 334 .51 349.03 Reach A 12131.56 395.32 377 .53 Reach A 11754.03 454.41 447 .24 Reach A 11306. 79 4 65 . 98 479.44 Reach A 10827. 35 363 .31 368 .81 Reach A 10458.54 389.39 392 .88 Reach A 10065.66 388.77 379 .19 Reach A 9686.47 575.24 610 .14 Reach A 9076 .33 372 . 4 378 .8 5 Reach A 8697 .4 8 74.23 76.02 Reach A 8621.46 1206 .4 1302 .81 Reach A 7318.65 255.41 248 .4 Reach A 7070.25 741.68 768 .77 Reach A 6301. 48 569 .1 585 .11 Reach A 5716 .37 285.33 324 .8 9 Reach A 5391 .4 8 384 .13 393 .9 9 Reach A 4997.49 258.49 208 .0 6 Reach A 4789.43 194.38 134 . 05 Reach A 4655.57 364.38 343 .49 Reach A 4313.39 601 588 Reach A 3725 .17 350 423 Reach A 3302.88 220 210 Reach A 3092.13 335.36 332 .5 6 Reach A 2759 .57 539 .93 547 .51 Reach A 2212 .06 SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS River: N.F . Spring Cree .075 .075 .075 .075 .07 5 .075 .07 5 .07 5 .075 .075 .075 .075 .07 5 .075 Right 171.24 347.07 368.27 431.89 473.4 369.02 380 .45 369.65 584.85 384.61 6 7. 72 1243.98 251. 61 652.7 544.19 325.59 374 .8 9 205 .4 9 123.49 312 .53 425 360 180 361. 25 483.15 Exhibit D 13of14 Reach River Sta. Reach A 12650.45 Reach A 12480.59 Reach A 12131.56 Reach A 11754.03 Reach A 11306. 79 Reach A 10827.35 Reach A 1045 8 .54 Reach A 10065.66 Reach A 9686.47 Reach A 9076.33 Reach A 8697.48 Reach A 8621.46 Reach A 7318.65 Reach A 7070.25 Reach A 6301.48 Reach A 5716 . 37 Reach A 5391.48 Reach A 4997.49 Reach A 4789.43 Reach A 4655.57 Reach A 4313. 39 Reach A 3725.17 Reach A 3302.88 Reach A 3092.13 Reach A 2759.57 Reach A 2212 .0 6 Exhibit D HEC-RAS Data Contr. Expan. .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 .3 .1 . 3 .1 .3 .1 . 3 .1 . 3 .1 .3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 .3 .1 .3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 .1 . 3 Exhibit D 14of14 Exhibit E HEC-RAS Output Profile Output Table -Standard Table 1 HEC-RAS Plan: Spring Cr River: N .F . Spring Cree Reach: Reach A #Rivers= 1 # Hydraulic Reaches = 1 # River Stations = 26 #Plans= 1 # Profiles= 15 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G . Elev E.G . Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 12650.45 500yr Ex. 500 317 .3 319 .3 319 .41 0.002003 2.66 217 .36 167.61 0 .36 Reach A 12650.45 500yr Pr. 500 317 .3 319 .3 319.41 0 .002003 2.66 217 .36 167 .61 0 .36 Reach A 12650.45 500yr Ult. 784 317 .3 319.82 319 .96 0.001907 3.11 313.12 216.46 0 .37 Reach A 12650 .45 1 OOyr Ex. 385 317 .3 319.06 319 .15 0.002055 2.42 178.44 156.63 0.36 Reach A 12650.45 100yr Pr. 385 317.3 319 .06 319.15 0.002055 2 .42 178.44 156.63 0 .36 Reach A 12650.45 100yr Ult. 604 317.3 319 .51 319 .62 0.001942 2.83 252.41 176.92 0.37 Reach A 12650.45 50yr Ex. 330 317 .3 318 .94 319 .02 0.002094 2.3 158.93 150.82 0 .36 Reach A 12650.45 50yr Pr. 330 317 .3 318 .94 319 .02 0.002094 2 .3 158.93 150.82 0 .36 Reach A 12650.45 50yr Ult. 535 317.3 319.37 319.48 0.001983 2 .72 229.18 170.81 0 .36 Reach A 12650.45 25yr Ex. 284 317.3 318.82 318.89 0 .002145 2 .18 141 .87 145.55 0 .36 Reach A 12650.45 25yr Pr. 284 317 .3 318.82 318 .89 0 .002145 2.18 141.87 145.55 0 .36 Reach A 12650.45 25yr Ult. 477 317 .3 319.26 319 .36 0.001998 2 .61 210.24 165.66 0 .36 Reach A 12650 .45 1 Oyr Ex. 221 317.3 318.64 318 .7 0 .002304 2 .03 116.43 137.33 0 .36 Reach A 12650 .45 10yr Pr. 221 317 .3 318 .64 318 .7 0 .002304 2 .03 116.43 137 .33 0 .36 Reach A 12650.45 10yr Ult. 396 317.3 319 .09 319 .18 0 .002047 2.45 182.32 157.76 0.36 Reach A 12480 .59 500yr Ex. 500 316 318 .31 318.14 318.72 0 .010509 5.2 102.08 116.19 0.8 Reach A 12480.59 500yr Pr. 500 316 318 .31 318 .14 318 .72 0 .010509 5.2 102.08 116.19 0.8 Reach A 12480.59 500yr Ult. 784 316 318 .59 318 .59 319 .24 0 .012879 6 .55 140 .29 155.68 0 .92 Reach A 12480.59 100yr Ex. 385 316 318.16 317.93 318.48 0.009465 4.55 86 .25 95 .14 0 .75 Reach A 12480.59 1 OOyr Pr. 385 316 318.16 317 .93 318.48 0 .009465 4 .55 86.25 95 .14 0.75 Reach A 12480.59 1 OOyr Ult. 604 316 318.42 318 .31 318.92 0.011595 5.76 115.47 131.39 0.85 Reach A 12480.59 50yr Ex. 330 316 318.06 317 .82 318 .34 0 .009218 4 .25 78.01 82.08 0 .73 Reach A 12480.59 50yr Pr. 330 316 318 .06 317.82 318 .34 0 .009218 4 .25 78.01 82.08 0 .73 Reach A 12480 .59 50yr Ult. 535 316 318 .35 318.2 318 .79 0 .010775 5.38 107.07 122.08 0.82 Hee-Ras Output.xis 4/1/2004 Exhibit E 1 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W.S . Elev Crit W .S . E .G . Elev E.G. Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 12480.59 25yr Ex. 284 316 317 .99 317 .71 318.23 0 .008702 3.94 72 .09 72 .54 0 .7 Reach A 12480.59 25yr Pr. 284 316 317 .99 317 .71 318 .23 0.008702 3.94 72 .09 72 .54 0 .7 Reach A 12480.59 25yr Ult. 477 316 318 .28 318.11 318 .68 0.010319 5.08 98.85 112.22 0 .79 Reach A 12480.59 10yr Ex. 221 316 317.84 317 .55 318 .04 0 .007851 3.56 62 .08 67.32 0 .65 Reach A 12480. 59 1 Oyr Pr. 221 316 317 .84 317 .55 318 .04 0 .007851 3.56 62 .08 67.32 0 .65 Reach A 12480.59 10yr Ult. 396 316 318 .17 317.95 318 .5 0 .009586 4 .62 87 .69 97.24 0 .75 Reach A 12131.56 500yr Ex. 500 315 .73 316.99 317.06 0.002469 2 .28 270.43 317.54 0.38 Reach A 12131 .56 500yrPr. 500 315 .73 316 .99 317 .06 0.002469 2.28 270.43 317 .54 0 .38 Reach A 12131.56 500yrUlt. 784 315.73 317 .3 317.4 0.002478 2 .69 377.35 356.45 0.4 Reach A 12131 .56100yrEx. 385 315 .73 316.83 316.89 0 .002462 2 .06 223.57 298.89 0 .37 Reach A 12131 .56 100yr Pr. 385 315.73 316 .83 316 .89 0 .002462 2 .06 223 .57 298.89 0.37 Reach A 12131 .56 1 OOyr Ult. 604 315 .73 317 .11 317 .2 0 .002438 2.43 312.48 333 .38 0.38 Reach A 12131.56 50yrEx. 330 315.73 316.76 316.81 0.002388 1.93 202 .06 289 .04 0 .36 Reach A 12131 .56 50yrPr. 330 315.73 316.76 316.81 0.002388 1.93 202.06 289.04 0.36 Reach A 12131 .56 50yr Ult. 535 315.73 317.03 317.1 0.002479 2.34 283 .86 322 .68 0 .38 Reach A 12131.56 25yr Ex. 284 315 .73 316.69 316 .74 0 .002372 1 .82 181.7 278 .65 0 .35 Reach A 12131 .56 25yrPr. 284 315.73 316 .69 316.74 0 .002372 1.82 181.7 278.65 0.35 Reach A 12131 .56 25yrUlt. 477 315.73 316 .96 317.03 0.002465 2.23 261.38 314.02 0 .38 Reach A 12131 .56 10yr Ex. 221 315 .73 316 .58 316.62 0 .002362 1.65 152.12 262 .84 0 .34 Reach A 12131 .56 1 Oyr Pr. 221 315.73 316.58 316.62 0.002362 1.65 152 .12 262 .84 0.34 Reach A 12131 .56 1 Oyr Ult. 396 315 .73 316 .85 316.91 0 .002458 2.08 228 .33 300 .83 0.37 Reach A 11754.03 500yr Ex. 500 313.72 314 .73 314 .73 315.02 0.020847 5.58 172.43 300 .65 1.06 Reach A 11754.03 500yr Pr. 500 313 .72 314 .73 314 .73 315.02 0.020847 5 .58 172 .43 300 .65 1 .06 Reach A 11754.03 500yr Ult. 784 313 .72 314 .94 314.94 315 .31 0.021024 6 .48 239.16 329 .89 1.1 Reach A 11754 .03 1 OOyr Ex. 385 313.72 314.63 314 .63 314 .88 0 .020524 5 .1 143.05 286.82 1.03 Reach A 11754.03 1 OOyr Pr. 385 313.72 314.63 314.63 314 .88 0 .020524 5 .1 143.05 286.82 1.03 Reach A 11754.03 1 OOyr Ult. 604 313.72 314 .81 314 .81 315 .13 0.021026 5.95 197.48 311.95 1.08 Reach A 11754 .03 50yr Ex. 330 313 .72 314.58 314.58 314 .81 0.020049 4.82 128.72 279.84 1 Reach A 11754.03 50y r Pr. 330 313.72 314.58 314 .58 314 .81 0.020049 4 .82 128.72 279.84 1 Reach A 11754.03 50yr Ult. 535 313.72 314.76 314 .76 315 .06 0 .020905 5.71 181.04 304.58 1.06 Reach A 11754.03 25yr Ex. 284 313.72 314.53 314 .53 314 .74 0.019963 4 .59 115.28 273 .12 0.99 Reach A 11754.03 25yr Pr. 284 313.72 314 .53 314 .53 314.74 0.019963 4.59 115.28 273.12 0.99 Reach A 11754.03 25yr Ult. 477 313 .72 314 .71 314 .71 314.99 0 .020793 5.49 166.72 298 .01 1.05 Hee-Ras Output.xis 4/1/2004 Exhibit E 2of13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S . Elev Crit W.S. E.G. Elev E.G . Slope Vel Chnl Flow Area Top Width Froude # Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 11754.03 1 Oyr Ex. 221 313.72 314.46 314.46 314 .65 0.019069 4 .18 97.08 263 .75 0.95 Reach A 11754.03 1 Oyr Pr. 221 3 13 .72 314.46 314.46 314.65 0.019069 4 .18 97 .08 263.75 0 .95 Reach A 11754.03 1 Oyr Ult. 396 313.72 314.64 314 .64 314.89 0.020584 5.15 145.9 288 .19 1.03 Reach A 11306. 79 500yr Ex. 960 309.14 312 .1 311 .34 312.25 0 .002453 3 .9 491 .07 360 .39 0.43 Reach A 11306. 79 500yr Pr. 960 309 .14 312 .1 311.34 312 .25 0 .002453 3 .9 491 .07 360 .39 0 .43 Reach A 11306.79 500yr Ult. 1366 309 .14 312.44 312.63 0 .002789 4 .52 621 .17 401 .05 0.47 Reach A 11306.79 100yr Ex. 737 309 .14 311 .88 311.11 312.01 0 .002194 3.47 414 .68 344.16 0 .4 Reach A 11306.79 100yr Pr. 737 309 .14 311 .88 311 .11 312 .01 0 .002194 3.47 414.68 344 .16 0.4 Reach A 11306. 79 1 OOyr Ult. 1097 309 .14 312 .22 312.39 0 .002576 4 .12 536 .8 375 .18 0.45 Reach A 11306.79 50yr Ex. 628 309.14 311 .75 310 .99 311 .86 0 .00208 3.25 370.44 332 .94 0.39 Reach A 11306. 79 50yr Pr. 628 309 .14 311 .75 310 .99 311 .86 0 .00208 3.25 370.44 332.94 0 .39 Reach A 11306.79 50yr Ult. 966 309 .14 312 .1 311 .35 312.26 0.002456 3.91 493 .39 361.15 0.43 Reach A 11306.79 25yr Ex. 532 309.14 311 .61 310 .87 311.72 0.001962 3 .03 327.64 312 .29 0 .37 Reach A 11306. 79 25yr Pr. 532 309 .14 311.61 310 .87 311.72 0 .001962 3.03 327 .64 312 .29 0.37 Reach A 11306. 79 25yr Ult. 858 309 .14 312 311 .24 312 .14 0 .002335 3 .7 456 .66 348 .95 0.42 Reach A 11306. 79 1 Oyr Ex. 413 309 .14 311 .42 310 .69 311.5 0.001836 2.74 268.46 281 .26 0.35 Reach A 11306 . 79 1 Oyr Pr. 413 309 .14 311.42 310 .69 311.5 0.001836 2.74 268.46 281 .26 0.35 Reach A 11306.7910yrUlt. 706 309.14 311.85 311 .08 311 .97 0.002153 3 .41 403 .55 342.88 0.4 Reach A 10827.35 500yr Ex. 960 308 309.68 310 .05 0.011251 5 .02 222.12 294.49 0 .82 Reach A 10827.35 500yr Pr. 960 308 309.68 310 .05 0.011251 5.02 222.12 294.49 0.82 Reach A 10827 .35 500yr Ult. 1366 308 310.02 310.42 0.008844 5.28 343.43 407.96 0 .75 Reach A 10827. 35 1 OOyr Ex. 737 308 309.45 309 .81 0.014205 4.89 163.58 225.16 0 .88 Reach A 10827.35 100yr Pr. 737 308 309.45 309 .81 0.014205 4.89 163.58 225.16 0.88 Reach A 10827.35 1 OOyr Ult. 1097 308 309.8 310.19 0.010219 5 .11 261 .13 337 .22 0 .79 Reach A 10827.35 50yr Ex. 628 308 309 .34 309.3 309.68 0.015946 4 .76 139.26 207.86 0 .92 Reach A 10827.35 50yr Pr. 628 308 309.34 309.3 309 .68 0.015946 4 .76 139.26 207 .86 0 .92 Reach A 10827 .35 50yr Ult. 966 308 309 .68 310.06 0.011232 5.03 223 .49 296 .09 0 .82 Reach A 10827.35 25yr Ex. 532 308 309.23 309 .21 309.56 0 .018213 4 .65 118 .03 191.48 0 .96 Reach A 10827 .35 25yr Pr. 532 308 309 .23 309 .21 309.56 0.018213 4 .65 118 .03 191 .48 0.96 Reach A 10827 .35 25yr Ult. 858 308 309 .58 309.95 0 .012326 4 .95 194.45 259 .95 0.84 Reach A 10827.35 10yr Ex. 413 308 309 .1 309 .1 309.4 0.02172 4.43 93 .8 170.88 1.01 Reach A 10827.35 10yrPr. 413 308 309.1 309.1 309.4 0 .02172 4.43 93.8 170.88 1.01 Reach A 10827.3510yrUlt. 706 308 309.42 309 .37 309.78 0.014764 4 .86 156.14 220 .01 0 .9 Hee-Ras Output.xis 4/1/2004 Exhibit E 3 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G . Elev E .G. Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) {ft) Reach A 10458.54 500yr Ex. 960 305 .82 307.32 307.4 0.004715 3 .67 443.03 247 .1 0 .54 Reach A 10458.54 500yr Pr. 960 305.82 307 .32 307.4 0.004715 3 .67 443.03 247 .1 0.54 Reach A 10458 .54 500yr Ult. 1366 305 .82 307 .74 307 .85 0.005313 4.63 570.21 380.48 0 .6 Reach A 10458 .54 1 OOyr Ex. 737 305 .82 307 .04 307 .1 0 .004325 3.02 375 .11 226.01 0 .5 Reach A 10458 .54 1 OOyr Pr. 737 305.82 307 .04 307 .1 0 .004325 3.02 375.11 226.01 0.5 Reach A 10458 .54 1 OOyr Ult. 1097 305.82 307.49 307.57 0.004906 4 .03 485 .41 284.82 0.57 Reach A 10458.54 50yr Ex. 628 305 .82 306 .87 306.92 0.004125 2 .65 338 .54 213 .8 0.48 Reach A 10458 .54 50yr Pr. 628 305 .82 306 .87 306 .92 0 .004125 2 .65 338.54 213 .8 0.48 Reach A 10458.54 50yr Ult. 966 305.82 307 .33 307.41 0.004708 3.68 445.37 247.79 0 .54 Reach A 10458.54 25yr Ex. 532 305.82 306 .71 306 .75 0.003915 2 .28 304 .74 201.86 0.45 Reach A 10458.54 25yr Pr. 532 305 .82 306 .71 306 .75 0.003915 2 .28 304.74 201.86 0.45 Reach A 10458.54 25yr Ult. 858 305 .82 307 .2 307 .27 0.004531 3 .38 413.23 238 .08 0.53 Reach A 10458.54 1 Oyr Ex. 413 305 .82 306.49 306.53 0.0035 1.74 262 .62 185.9 0.4 Reach A 10458.54 1 Oyr Pr. 413 305 .82 306.49 306.53 0.0035 1.74 262.62 185.9 0.4 Reach A 10458 .54 1 Oyr Ult. 706 305 .82 306.99 307.05 0 .004268 2 .92 364 .98 222 .69 0.49 Reach A 10065.66 500yr Ex. 960 302 .73 304.35 304 .52 0.013845 4 .92 300 .6 233.77 0.87 Reach A 10065.66 500yr Pr. 960 302 .73 304 .35 304.52 0.013845 4 .92 300 .6 233 .77 0.87 Reach A 10065.66 500yr Ult. 1366 302 .73 304.86 305 .05 0.010747 5 .74 442.2 315 .04 0.83 Reach A 10065 .66 1 OOyr Ex. 737 302 .73 303.99 304 .15 0 .017308 4 .08 226.78 178.02 0 .91 Reach A 10065.66 1 OOyr Pr. 737 302.73 303 .99 304 .15 0.017308 4.08 226.78 178.02 0.91 Reach A 10065.66 1 OOyr Ult. 1097 302 .73 304 .54 304 .72 0 .012578 5.27 347.14 263.27 0.86 Reach A 10065.66 50yr Ex. 628 302.73 303 .77 303.17 303 .94 0.019958 3 .86 189.67 159.17 0 .94 Reach A 10065.66 50yr Pr. 628 302 .73 303 .77 303.17 303.94 0.019958 3.86 189 .67 159.17 0 .94 Reach A 10065.66 50yr Ult. 966 302.73 304 .35 304 .53 0 .013949 4.94 301 .19 234 .16 0 .88 Reach A 10065.66 25yr Ex. 532 302.73 303 .53 303.02 303 .71 0 .024409 3.58 153 .7 138.48 1 Reach A 10065 .66 25yr Pr. 532 302 .73 303 .53 303.02 303 .71 0.024409 3 .58 153.7 138.48 1 Reach A 10065.66 25yr Ult. 858 302 .73 304 .19 304 .36 0 .015345 4.59 264.98 208.4 0 .89 Reach A 10065 .66 1 Oyr Ex. 413 302 .73 303 .14 302 .74 303.37 0 .036121 2 .77 106.07 104.99 1.09 Reach A 10065.66 1 Oyr Pr. 413 302.73 303 .14 302 .74 303 .37 0.036121 2 .77 106.07 104.99 1.09 Reach A 10065 .66 1 Oyr Ult. 706 302 .73 303 .93 304.1 0.017989 4.03 216.19 172.85 0 .92 Reach A 9686 .47 500yr Ex. 1438 298 .89 303 .45 303.58 0.001303 3 .86 850.89 429 .3 0 .34 Reach A 9686.47 500yr Pr. 1438 298 .89 303.45 303 .58 0 .001303 3 .86 850 .89 429 .3 0.34 Hee-Ras Output.xis 4/1/2004 Exhibit E 4 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S . Elev Crit W.S . E .G. Elev E.G . Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft} (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 9686.47 500yr Ult. 2013 298 .89 303 .91 304 .07 0.001444 4.37 1054.86 444 .24 0 .36 Reach A 9686.47 1 OOyr Ex. 1102 298 .89 303 .12 303 .24 0 .001198 3.5 713 .98 418 .97 0 .32 Reach A 9686.47 1 OOyr Pr. 1102 298.89 303.12 303.24 0.001198 3.5 713.98 418 .97 0 .32 Reach A 9686.47 1 OOyr Ult. 1632 298.89 303 .61 303.74 0.00137 4.06 919.26 434 .36 0 .35 Reach A 9686.47 50yr Ex. 939 298 .89 302 .93 303.04 0.001143 3.3 634 .14 401 .69 0 .31 Reach A 9686.47 50yr Pr. 939 298 .89 302 .93 303 .04 0.001143 3.3 634 .14 401 .69 0 .31 Reach A 9686.47 50yr Ult. 1438 298.89 303.45 303.58 0 .0013 3.86 851.62 429.35 0 .34 Reach A 9686.47 25yr Ex. 802 298.89 302 .75 302.85 0 .001051 3.05 565.56 367 .27 0 .3 Reach A 9686.47 25yr Pr. 802 298.89 302 .75 302.85 0 .001051 3.05 565 .56 367.27 0.3 Reach A 9686.47 25yr Ult. 1276 298 .89 303 .29 303.42 0.001259 3.7 786 424.43 0 .33 Reach A 9686.47 10yr Ex. 621 298 .89 302 .35 302.44 0 .001066 2.82 434.38 290 .26 0 .29 Reach A 9686.4 7 1 Oyr Pr. 621 298.89 302.35 302.44 0.001066 2 .82 434.38 290 .26 0.29 Reach A 9686.47 10yr Ult. 1051 298.89 303.07 303 .18 0 .001182 3.44 690 .89 417.2 0 .32 Reach A 9076 .33 500yr Ex. 1438 296 .54 302 .04 302 .34 0 .003781 7.28 722.87 528 .92 0 .59 Reach A 9076 .33 500yr Pr. 1438 296 .54 302 .04 302 .34 0.003781 7.28 722.87 528 .92 0.59 Reach A 9076.33 500yr Ult. 2013 296.54 302 .79 302 .97 0 .00246 6.47 1175 .17 675.39 0.49 Reach A 9076.33 1 OOyr Ex. 1102 296.54 301.61 301 .98 0.004473 7.44 515.99 434.85 0 .63 Reach A 9076 .33 1 OOyr Pr. 1102 296.54 301 .61 301.98 0.004473 7.44 515.99 434.85 0.63 Reach A 9076 .33 1 OOyr Ult. 1632 296.54 302 .36 302.59 0 .002974 6 .74 903 .32 591 .72 0.53 Reach A 9076 .33 50yr Ex. 939 296.54 301 .4 301 .79 0 .004617 7 .31 431.34 389.36 0.63 Reach A 9076 .33 50yr Pr. 939 296.54 301.4 301.79 0.004617 7 .31 431.34 389.36 0.63 Reach A 9076 .33 50yr Ult. 1438 296.54 302 .02 302.33 0.003847 7 .33 717.07 526.78 0.59 Reach A 9076 .33 25yr Ex. 802 296.54 301 .13 301 .6 0.005377 7.55 335.32 330 .24 0.68 Reach A 9076.33 25yr Pr. 802 296.54 301 .13 301 .6 0.005377 7.55 335.32 330 .24 0 .68 Reach A 9076 .33 25yr Ult. 1276 296 .54 301 .85 302 .17 0.003996 7.29 629 .18 489 .12 0 .6 Reach A 9076 .33 1 Oyr Ex. 621 296 .54 301.45 301.61 0.001843 4.66 452.28 401.09 0.4 Reach A 9076.33 1 Oyr Pr. 621 296 .54 301 .45 301.61 0.001843 4 .66 452 .28 401 .09 0 .4 Reach A 9076 .33 1 Oyr Ult. 1051 296 .54 301 .54 301 .92 0.004563 7.43 487.13 419 .9 0 .63 Reach A 8697 .48 500yr Ex. 1659 293 .72 299 .85 299 .85 300.59 0 .005334 9 .23 529 .34 401.49 0 .7 Reach A 8697.48 500yr Pr. 1659 293 .72 299 .85 299.85 300 .59 0 .005334 9 .23 529 .34 401.49 0.7 Reach A 8697.48 500yr Ult. 2289 293 .72 299 .93 299 .93 301 .18 0 .009167 12 .21 561 .9 451.58 0.92 Reach A 8697.48 1 OOyr Ex. 1280 293.72 299 .58 299.58 300 .23 0 .004642 8.31 434 .29 316 .95 0.65 Reach A 8697.48 100yr Pr. 1280 293 .72 299.58 299.58 300 .23 0 .004642 8.31 434 .29 316.95 0.65 Hee-Ras Output.xis 4/1/2004 Exhibit E 5 of 13 Exhibit E HEC-RAS Output Reach River Sta Profi le Q Total Min Ch El W .S . Elev Crit W .S . E.G . Elev E.G. Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 8697.48 1 OOyr Ult. 1863 293 .72 299.8 299 .8 300.8 0 .00723 10 .67 508.65 366 .13 0.82 Reach A 8697.48 50yr Ex. 1106 293.72 299 .38 299 .38 300 .03 0 .00457 8 .03 374.47 299 .08 0.64 Reach A 8697.48 50yr Pr. 1106 293.72 299.38 299 .38 300.03 0 .00457 8 .03 374 .47 299.08 0 .64 Reach A 8697.48 50yr Ult. 1643 293.72 299.84 299 .84 300 .57 0 .005304 9.19 525 .27 394.78 0 .7 Reach A 8697.48 25yr Ex. 900 293.72 299 .13 299 .13 299 .77 0 .004368 7 .59 303 .26 276 .31 0 .62 Reach A 8697.48 25yr Pr. 900 293 .72 299 .13 299 .13 299.77 0 .004368 7.59 303 .26 276 .31 0.62 Reach A 8697.48 25yr Ult. 1463 293 .72 299.69 299.69 300.41 0 .005149 8.89 472.46 327.84 0 .69 Reach A 8697.48 1 Oyr Ex. 701 293 .72 297 .79 297.79 299.78 0 .015772 11.48 68 .19 27.85 1.11 Reach A 8697.48 1 Oyr Pr. 701 293 .72 297.79 297 .79 299 .78 0 .015772 11.48 68.19 27 .85 1.11 Reach A 8697.48 1 Oyr Ult. 1226 293 .72 299.52 299 .52 300 .17 0 .004573 8 .19 418 .3 312 .27 0 .64 Reach A 8621.46 500yr Ex. 1659 293 .56 298 .12 298 .63 0 .006614 9 .18 485 .03 248.88 0 .78 Reach A 8621 .46 500yr Pr. 1659 293 .56 298.12 298 .63 0 .006624 9.18 484 .68 248.57 0.78 Reach A 8621.46 500yr Ult. 2289 293 .56 298 .79 299.41 0 .007175 10.51 695 .12 372 .92 0 .83 Reach A 8621.46 1 OOyr Ex. 1280 293.56 297.53 298.13 0 .008529 9.45 357.74 198.11 0.86 Reach A 8621.46 1 OOyr Pr. 1280 293 .56 297 .53 298.13 0 .008529 9 .45 357 .74 198.11 0 .86 Reach A 8621.46 1 OOyr Ult. 1863 293 .56 298 .35 298 .87 0.006457 9 .39 548.42 299 .51 0.77 Reach A 8621.46 50yr Ex. 1106 293 .56 297.21 297.87 0.009845 9.57 296.85 181 .68 0.91 Reach A 8621.46 50yr Pr. 1106 293 .56 297 .21 297.87 0 .009845 9 .57 296.85 181.68 0 .91 Reach A 8621 .46 50yr Ult. 1643 293 .56 298.06 298 .59 0 .00697 9.33 469.44 234.77 0.79 Reach A 8621 .46 25yr Ex. 900 293 .56 296 .87 297.53 0.010688 9 .3 238.73 158 .38 0 .93 Reach A 8621.46 25yr Pr. 900 293.56 296 .87 297 .53 0 .01068 9.3 238 .81 158.42 0 .93 Reach A 8621.46 25yr Ult. 1463 293 .56 297.81 298 .36 0.007594 9 .35 413 .94 212 .09 0.82 Reach A 8621.46 1 Oyr Ex. 701 293 .56 296 .55 297.15 0 .010734 8 .66 190 .77 136 .2 0 .92 Reach A 8621.46 1 Oyr Pr. 701 293 .56 296.55 297 .15 0.010731 8.65 190.8 136 .21 0 .92 Reach A 8621.46 1 Oyr Ult. 1226 293.56 297.42 298 .06 0.009259 9.65 335 .67 194.8 0 .89 Reach A 7318.65 500yr Ex. 1812 288.39 294 .18 294 .59 0 .001915 5.41 489 .7 364 .61 0.43 Reach A 7318.65 500yr Pr. 1812 288 .39 294 .18 294 .59 0 .00191 5.41 490.98 366 .46 0.43 Reach A 7318 .65 500yr Ult. 2373 288.39 294.83 295 .27 0.00185 5.78 774 .35 460.25 0.43 Reach A 7318 .65 100yr Ex. 1400 288.39 293 .52 293 .85 0 .001822 4 .81 363 .54 111 .2 0.41 Reach A 7318 .65 100yr Pr. 1400 288.39 293.52 293.85 0.001822 4 .81 363 .54 111.2 0.41 Reach A 7318 .65 100yr Ult. 1969 288.39 294.4 294.83 0.001909 5.57 579 425 .64 0.43 Reach A 7318 .65 50yr Ex. 1192 288 .39 293 .2 293.48 0 .00174 4.46 328 .51 108 0 .39 Reach A 7318 .65 50yr Pr. 1192 288 .39 293 .2 293.48 0.00174 4.46 328.51 108 0 .39 Hee-Ras Outpu t.xis 4/1/2004 Exhibit E 6of13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S. Elev Crit W .S . E .G. Elev E .G. Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 7318 .65 50yr Ult. 1756 288.39 294 .12 294 .51 0 .001865 5.3 468.67 332 .86 0.42 Reach A 7318 .65 25yr Ex. 975 288.39 292 .77 293 .02 0 .001751 4 .15 282 .83 103.68 0 .39 Reach A 7318.65 25yr Pr. 975 288 .39 292.77 293.02 0 .001752 4.15 282 .78 103 .68 0 .39 Reach A 7318 .65 25yr Ult. 1567 288.39 293 .75 294 .12 0 .001887 5 .07 389.91 113 .54 0 .42 Reach A 7318.65 10yr Ex. 765 288 .39 292 .27 292 .49 0.001838 3.85 232.67 98.73 0 .39 Reach A 7318.6510yrPr. 765 288 .39 292.27 292.49 0.001838 3 .85 232 .65 98 .73 0.39 Reach A 7318 .65 10yr Ult. 1300 288.39 293.37 293 .68 0 .001781 4.64 347 .1 109.71 0.4 Reach A 7070.25 500yr Ex. 1812 287 .61 294.08 294.17 0.000916 4 .37 1063.01 360 .24 0.31 Reach A 7070.25 500yr Pr. 1812 287.61 294 .09 294.17 0.000914 4.36 1064.42 361 .83 0.31 Reach A 7070.25 500yr Ult. 2373 287 .61 294.71 294.82 0.001069 5.03 1363.5 544 .76 0.34 Reach A 7070.25 1 OOyr Ex. 1400 287.61 293.38 293.46 0 .000912 4 .02 867.98 250 .69 0.3 Reach A 7070.25 1 OOyr Pr. 1400 287 .61 293.38 293.46 0.000912 4 .02 867.98 250.69 0 .3 Reach A 7070.25 1 OOyr Ult. 1969 287 .61 294.31 294.4 0 .000948 4 .55 1154.8 452 .21 0 .31 Reach A 7070.25 50yr Ex. 1192 287 .61 293 .05 293 .12 0 .000867 3.77 787.11 241 .49 0 .29 Reach A 7070.25 50yr Pr. 1192 287 .61 293.05 293 .12 0 .000867 3 .77 787 .11 241 .49 0 .29 Reach A 7070.25 50yr Ult. 1756 287 .61 294.02 294 .11 0.000888 4.27 1041 .7 335.3 0 .3 Reach A 7070.25 25yr Ex. 975 287 .61 292 .6 292.66 0.00087 3.56 680.43 228 .78 0 .29 Reach A 7070.25 25yr Pr. 975 287 .61 292 .6 292.66 0 .000871 3 .56 680 .29 228 .76 0 .29 Reach A 7070.25 25yr Ult. 1567 287 .61 293 .62 293.71 0.000945 4.22 929 .63 257.48 0 .31 Reach A 7070 .25 1 Oyr Ex. 765 287 .61 292 .07 292 .13 0 .000911 3.36 563 .39 213 .98 0.29 Reach A 7070 .25 1 Oyr Pr. 765 287 .61 292 .07 292.13 0 .000911 3.37 563.33 213 .97 0 .29 Reach A 7070.25 1 Oyr Ult. 1300 287 .61 293 .23 293 .3 0.00089 3.9 829 .91 246.4 0 .3 Reach A 6301 .48 500yr Ex. 1812 285.86 291.06 292.48 0.008717 10 .54 317.67 211 .22 0 .89 Reach A 6301.48 500yr Pr. 1812 285.86 291.05 292.48 0 .008783 10.57 316.2 210.5 0 .89 Reach A 6301 .48 500yr Ult. 2373 285 .86 291.69 293.02 0.007593 10.77 475.91 306 .99 0 .85 Reach A 6301.48 1 OOyr Ex. 1400 285 .86 290 .78 290 .78 291 .88 0.007005 9 .06 264.25 183 .18 0.79 Reach A 6301 .48 1 OOyr Pr. 1400 285 .86 290.78 290 .78 291 .88 0.007005 9 .06 264.25 183.18 0 .79 Reach A 6301.48 1 OOyr Ult. 1969 285.86 291.2 292.66 0 .008778 10.82 349 .83 226.43 0 .89 Reach A 6301 .48 50yr Ex. 1192 285 .86 290.33 290 .33 291.52 0 .008435 9 .19 191 .25 135.82 0 .85 Reach A 6301.48 50yr Pr. 1192 285.86 290.33 290 .33 291 .52 0 .008435 9 .19 191 .25 135.82 0.85 Reach A 6301.48 50yr Ult. 1756 285.86 290.95 292.42 0 .009173 10.64 296.23 200.44 0.91 Reach A 6301.48 25yr Ex. 975 285 .86 289.83 291 0 .009783 8 .98 137 .24 75.22 0.89 Reach A 6301.48 25yr Pr. 975 285 .86 289.83 291 0.009744 8 .97 137.49 75 .75 0.89 Hee-Ras Output.xis 4/1/2004 Exhibit E 7 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S . Elev Crit W .S . E .G. Elev E .G . Slope Vel Chnl Flow Area Top Width Froude # Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 6301.48 25yr Ult. 1567 285.86 291 .04 291.04 292 .12 0 .00661 9 .16 315 209.91 0 .77 Reach A 6301 .48 1 Oyr Ex. 765 285 .86 289.48 290.45 0.009285 8 .09 113 .56 63 .8 0.85 Reach A 6301.48 1 Oyr Pr. 765 285 .86 289.48 290 .45 0 .009264 8.08 113 .67 63 .84 0 .85 Reach A 6301.48 1 Oyr Ult. 1300 285 .86 290 .6 290 .6 291 . 71 0 .007437 9 .05 231 .67 163 .74 0.8 Reach A 5716.37 500yr Ex. 2001 283.81 289 .31 289 .75 0 .002605 6.53 635 .01 259 .76 0 .5 Reach A 5716.37 500yr Pr. 2005 283.81 289.33 289 .76 0.00257 6.5 640 .37 260 .99 0.49 Reach A 5716 .37 500yr Ult. 2580 283.81 289 .82 290.33 0 .002825 7.22 775.6 290.19 0 .53 Reach A 5716 .37 100yr Ex. 1533 283.81 288 .8 289 .18 0 .002404 5 .87 511 .69 229.79 0.47 Reach A 5716.37 1 OOyr Pr. 1537 283 .81 288 .81 289 .19 0 .002406 5 .87 512 .74 230 .06 0.47 Reach A 5716.37 1 OOyr Ult. 2138 283.81 289.47 289 .91 0.002597 6 .64 676 .93 269 .19 0 .5 Reach A 5716 .37 50yr Ex. 1296 283 .81 288 .51 288.85 0 .00228 5.48 445 .98 212 .09 0.45 Reach A 5716 .37 50yr Pr. 1300 283.81 288 .51 288.85 0 .002282 5.48 447 .14 212 .42 0.45 Reach A 5716.37 50yr Ult. 1906 283.81 289 .21 289 .64 0 .002578 6.41 609 .45 253.84 0.49 Reach A 5716.37 25yr Ex. 1081 283 .81 288 .18 288.49 0.002188 5 .11 380 .73 192 .92 0.44 Reach A 5716 .37 25yr Pr. 1084 283 .81 288 .19 288.49 0 .002189 5 .11 381 .68 193.21 0.44 Reach A 5716.37 25yr Ult. 1690 283.81 288 .98 289 .38 0.002477 6.1 553.87 240.46 0.48 Reach A 5716 .37 1 Oyr Ex. 848 283.81 287 .71 287.99 0.002229 4 .77 296 .6 164.95 0.43 Reach A 5716 .37 1 Oyr Pr. 851 283 .81 287.72 288 0.002224 4 .77 297 .94 165.43 0 .43 Reach A 5716 .37 1 Oyr Ult. 1388 283 .81 288 .63 288 .98 0 .002323 5.63 472 .47 219 .4 0.46 Reach A 5391.48 500yr Ex. 2001 283.01 289.39 289.42 0.00028 2.31 2239.28 606.24 0 .17 Reach A 5391.48 500yr Pr. 2005 283.01 289.41 289 .44 0 .000276 2.3 2251 .38 606 .76 0 .17 Reach A 5391.48 500yr Ult. 2580 283 .01 289 .93 289 .96 0.000308 2 .57 2568.61 620 .2 0 .18 Reach A 5391.48 1 OOyr Ex. 1533 283 .01 288 .86 288.88 0 .000259 2.09 1920.94 592.43 0.16 Reach A 5391.48 1 OOyr Pr. 1537 283 .01 288 .87 288 .89 0.00026 2.09 1923.81 592 .56 0.16 Reach A 5391 .48 1 OOyr Ult. 2138 283 .01 289 .56 289 .58 0.00028 2 .36 2338 .81 610.49 0.17 Reach A 5391.48 SOyr Ex. 1296 283 .01 288.55 288 .57 0.000251 1.97 1735.41 584 .23 0 .15 Reach A 5391.48 50yr Pr. 1300 283 .01 288 .55 288 .57 0 .000251 1.98 1738.8 584 .38 0 .15 Reach A 5391.48 50yr Ult. 1906 283.01 289.29 289 .31 0.000276 2 .27 2176 .24 603 .53 0 .17 Reach A 5391 .48 25yr Ex. 1081 283.01 288 .2 288 .22 0 .00025 1.88 1536.63 575.32 0 .15 Reach A 5391 .48 25yr Pr. 1084 283 .01 288.21 288.23 0 .00025 1.88 1539.69 575.46 0.15 Reach A 5391 .48 25yr Ult. 1690 283 .01 289 .05 289 .07 0.000266 2 .17 2033.7 597 .36 0.16 Reach A 5391.48 1 Oyr Ex. 848 283 .01 287 .71 287.72 0 .000267 1.8 1257 .13 538 .36 0.15 Reach A 5391.48 1 Oyr Pr. 851 283 .01 287.72 287.73 0 .000266 . 1.8 1261 .73 539 .28 0 .15 Hee-Ras Output.xis 4/1/2004 Exhibit E 8 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S. Elev Crit W .S. E.G. Elev E .G . Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 539 1 .48 1 Oyr Ult. 1388 283 .01 288 .68 288 .7 0 .000253 2 .02 1811 .64 587 .61 0.16 Reach A 4997.49 500yr Ex. 2001 282.07 287 .99 287 .99 289 .02 0 .006525 9 .9 485 .85 300.14 0 .78 Reach A 4997.49 500yr Pr. 2005 282 .07 287 .93 287 .93 289 .03 0 .007007 10.18 468 .09 293 .14 0 .81 Reach A 4997.49 500yr Ult. 2580 282.07 288.59 288 .59 289.55 0 .005881 10.14 697 .71 412 .86 0.76 Reach A 4997.49 100yr Ex. 1533 282 .07 287 .58 287.58 288 .52 0 .006112 9 .05 372.55 252 .14 0 .75 Reach A 4997 .49 100yr Pr. 1537 282.07 287.59 287 .59 288 .52 0 .006104 9.05 373 .98 252 .8 0 .75 Reach A 4997.49 1 OOyr Ult. 2138 282 .07 288 .01 288 .01 289.17 0 .007325 10.52 490 .92 302.81 0 .83 Reach A 4997 .49 50yr Ex. 1296 282 .07 287.23 287 .23 288 .2 0.006583 8 .9 291.43 211 .16 0 .77 Reach A 4997.49 50yr Pr. 1300 282 .07 287 .24 287.24 288 .21 0 .006574 8 .9 292.78 211.91 0 .77 Reach A 4997.49 50yr Ult. 1906 282 .07 287 .95 287 .95 288.93 0 .006231 9 .62 472.3 294 .81 0.76 Reach A 4997 .49 25yr Ex. 1081 282 .07 286 .84 286 .84 287 .85 0 .007291 8 .78 217 .92 165.5 0 .79 Reach A 4997.49 25yr Pr. 1084 282.07 286.85 286 .85 287 .85 0 .007278 8.78 218 .95 166.22 0 .79 Reach A 4997 .49 25yr Ult. 1690 282 .07 287 .75 287 .75 288 .7 0 .006147 9 .29 415 .58 271 .37 0 .75 Reach A 4997 .49 10yr Ex. 848 282 .07 285.95 285.95 287 .28 0 .012772 9 .72 116.65 65 .98 1 Reach A 4997 .49 10yr Pr. 851 282 .07 285 .95 285 .95 287 .29 0 .012801 9 .74 116.89 66 .05 1 Reach A 4997.49 10yr Ult. 1388 282.07 287 .37 287 .37 288 .33 0 .006454 9 320 .58 226 .74 0 .76 Reach A 4789.43 500yr Ex. 2001 279 .46 287 .3 287 .37 0 .000576 3.92 1566 .15 448.31 0 .25 Reach A 4789 .43 500yr Pr. 2005 279 .46 287 .29 287 .35 0 .000584 3 .94 1559.44 446 .72 0 .25 Reach A 4789 .43 500yr Ult. 2580 279 .46 287 .88 287 .95 0 .000656 4 .39 1845 .62 555.31 0.27 Reach A 4789.43 100yr Ex. 1533 279 .46 286.54 286 .6 0 .000525 3 .49 1259 .02 360 .84 0 .24 Reach A 4789.43 100yr Pr. 1537 279 .46 286 .53 286 .59 0 .000532 3 .5 1254.58 359.42 0 .24 Reach A 4789 .43 100yr Ult. 2138 279 .46 287 .42 287.49 0.000608 4 .07 1619 .39 457 .04 0 .26 Reach A 4789.43 50yr Ex. 1296 279.46 286 .13 286.17 0.000468 3 .16 1118 .12 312.54 0 .22 Reach A 4789.43 50yr Pr. 1300 279.46 286 .12 286 .16 0.000473 3 .17 1115.69 311 .64 0 .22 Reach A 4789 .43 50yr Ult. 1906 279.46 287 .14 287 .2 0 .000578 3.87 1492.38 429 .05 0 .25 Reach A 4789.43 25yr Ex. 1081 279 .46 285 .72 285 .76 0 .000439 2 .93 996 .41 296 .32 0 .21 Reach A 4789 .43 25yr Pr. 1084 279.46 285 .73 285 .77 0.000438 2 .92 999 .08 296 .37 0 .21 Reach A 4789 .43 25yr Ult. 1690 279.46 286.82 286.87 0 .000548 3 .66 1361 .22 392.18 0.24 Reach A 4789 .43 10yr Ex. 848 279.46 285 .23 285.26 0 .000415 2 .69 852 .2 1 285 .17 0.2 Reach A 4 789 .43 1 Oyr Pr. 851 279.46 285.23 285.26 0 .000418 2 .7 852 .26 285 .18 0 .2 Reach A 4789 .4310yrUlt. 1388 279.46 286.23 286.27 0 .000511 3.33 1149.69 323 .99 0 .23 Rea c h A 4655 .57 500yr Ex. 2063 278 .83 286 .38 287.12 0 .003458 9 .05 609 .42 391 .74 0 .6 Hee-Ra s Output.xis 4/1/2004 Exhibit E 9 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S. Elev Crit W .S . E.G . Elev E .G . Slope Vel Chnl Flow Area Top W idth Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (fUs) (sq ft) (ft) Reach A 4655.57 500yr Pr. 2050 278 .83 286 .37 287 .11 0.003459 9 .04 603.49 386 .37 0 .6 Reach A 4655 .57 500yr Ult. 2641 278 .83 286 .91 287.69 0 .003647 9.76 850.01 507.73 0 .63 Reach A 4655.57 1 OOyr Ex. 1555 278 .83 285 .8 286.38 0.00294 7.87 442.41 165.18 0 .55 Reach A 4655.57 1 OOyr Pr. 1547 278.83 285.79 286 .37 0 .002932 7 .85 440 .8 164.73 0.55 Reach A 4655 .57 1 OOyr Ult. 2174 278.83 286 .48 287 .23 0 .003537 9.24 648 .81 425 .71 0 .61 Reach A 4655 .57 50yr Ex. 1303 278.83 285 .47 285 .98 0.002633 7 .2 391.74 150 .3 0 .52 Reach A 4655 .57 50yr Pr. 1298 278.83 285 .47 285 .98 0.002623 7 .18 390.92 150 .04 0 .51 Reach A 4655 .57 50yr Ult. 1925 278 .83 286 .22 286 .95 0.003434 8.89 551 .63 335.73 0 .6 Reach A 4655 .57 25yr Ex. 1090 278 .83 285 .15 285 .59 0 .002369 6 .58 345.42 135.27 0.48 Reach A 4655 .57 25yr Pr. 1088 278.83 285 .17 285 .6 0.002329 6 .54 347 .75 136 .06 0.48 Reach A 4655 .57 25yr Ult. 1696 278.83 285.97 286 .64 0 .003246 8 .42 476 .78 241.09 0 .58 Reach A 4655 .57 1 Oyr Ex. 850 278.83 284 .77 285 .11 0 .001942 5 .7 297.79 117.83 0 .43 Reach A 4655.57 1 Oyr Pr. 850 278.83 284 .77 285 .11 0 .001942 5 .7 297 .79 117.83 0 .43 Reach A 4655.57 1 Oyr Ult. 1366 278.83 285.54 286 .07 0.002754 7 .41 401.53 153.29 0.53 Reach A 4313 .39 500yr Ex . 2063 277 .46 284 .36 284 .36 285 .29 0 .009442 11 .77 484 .12 222 .79 0 .83 Reach A 4313.39 500yr Pr. 2050 277.46 284 .36 284 .36 285 .28 0.009388 11 .73 482.78 222 .64 0 .83 Reach A 4313.39 500yr Ult. 2641 277.46 284.75 284.75 285 .75 0 .010176 12.72 571 .83 232.98 0.87 Reach A 4313 .39 100yr Ex. 1555 277 .46 284.04 284.04 284 .83 0.007928 10.41 413.61 215 .69 0.75 Reach A 4313 .39 100yr Pr. 1547 277.46 284 .03 284 .03 284 .82 0 .007907 10.39 412.32 215 .56 0.75 Reach A 4313 .39 100yrUlt. 2174 277 .46 284.45 284.45 285 .38 0 .009446 11 .89 504 .81 225.21 0.83 Reach A 4313 .39 50yr Ex. 1303 277 .46 283.84 283.84 284 .57 0 .007267 9.74 370 .24 211.36 0.72 Reach A 4313 .39 50yr Pr. 1298 277 .46 283.83 283.83 284 .57 0 .007272 9.74 368 .93 211.22 0.72 Reach A 4313 .39 50yr Ult. 1925 277 .46 284 .29 284 .29 285 .17 0 .008938 11 .37 468 .16 221 .01 0.81 Reach A 4313 .39 25yr Ex. 1090 277 .46 283 .67 283.67 284 .33 0 .006363 8 .94 336.34 207.91 0.67 Reach A 4313 .39 25yrPr. 1088 277 .46 283.64 283.64 284.33 0.006659 9.11 329 .17 207 .17 0.68 Reach A 4313 .39 25yr Ult. 1696 277 .46 284.14 284 .14 284 .96 0 .008323 10.79 435 .18 217 .81 0.77 Reach A 4313 .39 10yr Ex. 850 277 .46 283 .39 283.39 284 .02 0 .005861 8 .29 278 .88 201 .93 0 .64 Reach A 4313 .39 10yrPr. 850 277.46 283 .39 283.39 284 .02 0.005861 8 .29 278 .88 201 .93 0 .64 Reach A 4313 .3910yrUlt. 1366 277.46 283 .92 283.92 284 .64 0.007154 9 .76 387 .73 213 .11 0 .71 Reach A 3725 .17 500yr Ex. 2052 276.93 283.5 283.58 0.000938 4.01 1187 .86 289.47 0.3 Reach A 3725 .17 500yr P r. 2037 276.93 283 .48 283.56 0 .00094 4 1181.24 289 .28 0 .3 Reach A 3725 .17 500yr Ult. 2603 276.93 284 .29 284.38 0 .000866 4 .2 1452.55 374 .02 0 .29 Reach A 3725 .17 1 OOyr Ex. 1563 276.93 282 .72 282.79 0 .001036 3 .81 964 .54 282 .82 0 .3 Hee-Ras Output.xis 4/1/2004 Exhibit E 10 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W .S . Elev Grit W .S . E.G . Elev E.G . Slope Vel Chnl Flow Area Top Width Froude #Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 3725 .17 1 OOyr Pr. 1556 276.93 282 .71 282 .78 0 .001038 3.81 961 .17 282 .71 0.3 Reach A 3725 .17 1 OOyr Ult. 2141 276.93 283 .64 283 .72 0 .000924 4 .04 1226.77 290.62 0 .3 Reach A 3725.17 50yr Ex. 1313 276 .93 282 .29 282.36 0 .001109 3.71 842 .77 279.12 0 .31 Reach A 3725 .17 50yr Pr. 1307 276 .93 282 .28 282 .35 0 .001 111 3 .7 839.76 279 .03 0 .31 Reach A 3725 .17 50yr Ult. 1892 276 .93 283 .26 283 .33 0.000966 3.94 1116 .38 287 .36 0 .3 Reach A 3725 .17 25yr Ex. 1099 276 .93 281 .89 281 .95 0.001203 3.62 731.38 275 .69 0.32 Reach A 3725 .17 25yr Pr. 1097 276 .93 281 .88 281 .95 0.001204 3.62 730 .3 275 .66 0 .32 Reach A 3725 .17 25yr Ult. 1673 276.93 282.91 282 .98 0.00101 3.86 1016.21 284 .37 0 .3 Reach A 3725 .17 1 Oyr Ex. 855 276 .93 281.4 281.47 0 .001343 3.51 598.9 271 .56 0.33 Reach A 3725 .17 1 Oyr Pr. 855 276 .93 281.4 281 .47 0 .001343 3.51 598 .9 271.56 0 .33 Reach A 3725 .17 1 Oyr Ult. 1368 276 .93 282.39 282.46 0.001091 3 .73 870 .07 279 .95 0.31 Reach A 3302 .88 500yr Ex. 2052 275 280.91 280.91 282 .57 0.009758 11 .16 256 .77 88.46 0.92 Reach A 3302 .88 500yr Pr. 2037 275 280 .89 280 .89 282.54 0 .009766 11 .14 255 .16 88 .05 0 .92 Reach A 3302.88 500yr Ult. 2603 275 281.54 281 .54 283.4 0 .009523 12.02 316 .64 102 .44 0.93 Reach A 3302 .88 1 OOyr Ex. 1563 275 280.29 280.29 281 .73 0 .009727 10 .23 205 .6 78 .45 0.9 Reach A 3302 .88 1 OOyr Pr. 1556 275 280.28 280 .28 281 .72 0.009721 10 .22 204.87 78 .37 0 .9 Reach A 3302 .88 1 OOyr Ult. 2141 275 281.02 281 .02 282.71 0.009712 11 .31 266 .38 90 .85 0 .92 Reach A 3302.88 50yr Ex. 1313 275 279 .91 279.91 281 .25 0.009749 9 .75 176 .42 75.35 0.89 Reach A 3302 .88 50yr Pr. 1307 275 279 .9 279.9 281.24 0 .009751 9 .74 175.69 75 .27 0 .89 Reach A 3302 .88 50yr Ult. 1892 275 280.71 280 .71 282 .3 0.009836 10 .88 239 .73 84 .06 0.92 Reach A 3302 .88 25yr Ex. 1099 275 279.57 279 .57 280 .8 0 .009624 9.23 151 .06 72 .54 0 .87 Reach A 3302 .88 25yr Pr. 1097 275 279 .56 279 .56 280 .79 0 .009623 9.22 150 .81 72 .51 0 .87 Reach A 3302.88 25yr Ult. 1673 275 280.44 280.44 281 .93 0 .009748 10.43 217 .71 79 .7 0 .9 Reach A 3302.88 1 Oyr Ex. 855 275 279 .07 279 .07 280 .21 0 .010086 8 .72 115.78 68 .45 0.88 Reach A 3302.88 1 Oyr Pr. 855 275 279 .07 279 .07 280 .21 0.010086 8.72 115.78 68.45 0 .88 Reach A 3302 .88 1 Oyr Ult. 1368 275 280 280 281 .36 0.009727 9.85 183 .12 76 .07 0 .89 Reach A 3092.13 500yr Ex. 2052 272 .78 280 .79 280.98 0 .00124 5.38 971 .83 266 .31 0 .36 Reach A 3092 .13 500yr Pr. 2037 272 .78 280 .76 280.95 0 .00125 5.38 964 .12 265.97 0 .36 Reach A 3092 .13 500yr Ult. 2603 272 .78 281 .77 281.94 0 .001012 5 .3 1238 .74 277 .83 0 .33 Reach A 3092 .13 1 OOyr Ex. 1563 272 .78 280 .06 280 .25 0.001315 5.14 780 .06 257 .71 0.36 Reach A 3092.13 1 OOyr Pr. 1556 272 .78 280 .05 280 .24 0 .001313 5.13 777 .77 257 .61 0 .36 Reach A 3092.13 1 OOyr Ult. 2141 272 .78 280 .96 281 .14 0 .001193 5.36 1016.07 268 .25 0 .35 Reach A 3092 .13 50yr Ex. 1313 272 .78 279.28 279 .55 0.001979 5 .77 583 .86 246.42 0.43 Hee-Ra s Output.xis 4/1/2004 Exhibit E 11 of 13 Exhibit E HEC-RAS Output Reach River Sta Profile Q Total Min Ch El W.S. Elev Grit W.S. E .G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chi (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach A 3092 .13 50yr Pr. 1307 272.78 279.27 279.53 0.001991 5.78 580 .31 246 .21 0 .44 Reach A 3092.13 50yr Ult. 1892 272 .78 280 .49 280.68 0.00134 5.42 891.03 262.72 0 .37 Reach A 3092 .13 25yr Ex. 1099 272.78 278.77 279.1 0.002501 6 .08 459.74 238 .88 0.48 Reach A 3092.13 25yr Pr. 1097 272.78 278 .76 279 .09 0.00251 6.09 458.35 238 .79 0 .48 Reach A 3092 .13 25yr Ult. 1673 272.78 280 .05 280 .27 0 .001519 5.52 777 .54 257 .6 0 .39 Reach A 3092.13 1 Oyr Ex. 855 272.78 278.08 278.59 0.003919 6.89 298.39 228.71 0 .59 Reach A 3092 .13 1 Oyr Pr. 855 272.78 278.08 278.59 0.003919 6 .89 298.39 228 .71 0 .59 Reach A 3092 .13 1 Oyr Ult. 1368 272.78 279.4 279 .66 0.001887 5.72 614.24 248 .23 0.43 Reach A 2759.57 500yr Ex. 2052 271 .65 278.42 277.81 280 .04 0.006277 11 .83 303.48 78.52 0.81 Reach A 2759.57 500yr Pr. 2037 271 .65 278.4 277.79 280.01 0 .00629 11 .81 301.27 78 .15 0 .81 Reach A 2759 .57 500yr Ult. 2603 271 .65 278.97 278.64 281.03 0.007352 13 .5 348.67 85 .67 0 .89 Reach A 2759 .57 1 OOyr Ex. 1563 271.65 278 .71 279 .54 0 .003086 8.53 326.23 82 .2 0 .57 Reach A 2759 .57 1 OOyr Pr. 1556 271.65 278.71 279 .53 0 .003052 8.49 326.51 82 .24 0.57 Reach A 2759.57 1 OOyr Ult. 2141 271 .65 278.22 280.14 0.007716 12.85 287.86 75.89 0.89 Reach A 2759 .57 50yr Ex . 1313 271.65 277.46 276.43 278 .49 0 .004744 9.26 233 .65 67 .36 0.69 Reach A 2759.57 50yr Pr. 1307 271.65 277.45 276.42 278.48 0.004749 9.25 232.65 67.21 0 .69 Reach A 2759.57 50yr Ult. 1892 271 .65 278 .24 277 .55 279.73 0.005968 11.32 289 .06 76 .09 0.79 Reach A 2759 .57 25yr Ex. 1099 271 .65 277.1 275 .96 277 .97 0 .004286 8.42 210.05 63.58 0.65 Reach A 2759.57 25yr Pr. 1097 271 .65 277 .09 275 .96 277.96 0.004299 8.42 209.48 63.48 0.65 Reach A 2759 .57 25yr Ult. 1673 271 .65 277.96 277.14 279.28 0.005529 10.58 268 .64 72.61 0 .75 Reach A 2759.57 10yr Ex. 855 271 .65 276.63 275.42 277 .31 0 .003701 7.35 181.26 58.63 0.59 Reach A 2759.57 1 Oyr Pr. 855 271 .65 276 .63 275 .42 277.31 0.003701 7 .35 181 .26 58.63 0.59 Reach A 2759.57 1 Oyr Ult. 1368 271.65 277.54 276 .55 278 .62 0 .004888 9.48 238 .82 68 .16 0.7 Reach A 2212 .06 500yr Ex. 2052 270.67 274.22 274 .22 275.43 0 .011286 9 .14 273.42 129.93 0 .95 Reach A 2212 .06 500yr Pr. 2037 270.67 274.21 274 .21 275.42 0 .011253 9 .11 272 .21 129.72 0 .95 Reach A 2212 .06 500yr Ult. 2603 270.67 274.67 274.67 276.04 0.010766 9.82 333.41 139.72 0.95 Reach A 2212.06 100yr Ex. 1563 270 .67 279 273.75 279.06 0 .000175 2.18 1135.88 235 0 .14 Reach A 2212 .06 1 OOyr Pr. 1556 270.67 279 273 .75 279.06 0.000174 2.17 1135.88 235 0.14 Reach A 2212 .06 1 OOyr Ult. 2141 270 .67 279 274 .31 279.11 0.000329 2 .99 1135.88 235 0 .19 Reach A 2212 .06 50yr Ex. 1313 270.67 273.5 273.5 274.47 0.012946 8.08 185.52 111 . 71 0 .97 Reach A 2212.06 50yr Pr. 1307 270 .67 273 .5 273.5 274.46 0.01284 8.04 185.46 111.69 0 .96 Reach A 2212 .06 50yr Ult. 1892 270.67 274.08 274 .08 275.24 0.01151 8.93 255 .25 126.81 0.95 Reach A 2212 .06 25yr Ex. 1099 270 .67 273.26 273.26 274.15 0.01355 7 .65 160 .08 105.5 0 .97 Hee-Ras Output.xis 4/1/2004 Exhibit E 12 of 13 Exhibit G HEC RAS Floodway Analysis North Fork of Spring Creek College Station, Texas A ril 2, 2 004 Reach River Sta W.S . Elev of Delta E.G. Elev op Wdth A QLeft Q Channel Q Right Enc Sta L Ch StaL Ch Sta R Enc Sta R ft ft) (ft) ft cfs cfs (cfs ft (ft (ft) ft Reach A 12650.45 319.09 0.03 319 .19 108 385 910 910 1018 1018 Reach A 124 80.59 318.1 -0.06 318.46 73 385 832 832 905 905 Reach A 12131.56 316.96 0.13 317.02 179 385 910 910 1089 1089 Reach A 11754 .03 315 .23 0.6 315.61 57 385 958 958 1015 1015 Reach A 11306.79 311.72 -0.16 312 .21 61 737 1194 1194 1255 1255 Reach A 10827.35 310.14 0.69 310.27 156 737 1296 1296 1452 1452 Reach A 10458.54 307.34 0 .31 307.97 151.3 29.52 217 .66 489.83 800 1267 1282 1550 Reach A 100 6 5.66 304 .97 0.98 305 .03 272.69 22 .25 113.62 601.13 1620 1664 1687 1990 Reach A 9686.47 303.18 0.06 303.73 51 1093 .23 8 .77 2029 2029 2078 2080 Reach A 9076.33 302 .61 1 302.67 500 513.57 274.7 313 .73 1150 1400 1414 1650 Reach A 8697.48 299.95 0.37 301.69 47 170.48 11 09.52 15 6 1 1590 1608 16 08 Reach A 8621.46 29 8.28 0 .75 299.33 110 492 .12 6 86.44 101.44 1570 1659 1673 1680 Reach A 7318 .65 294.43 0.91 294.72 63 2 .59 1394 .81 2.6 1542 1543 1604 1605 Reach A 7070.25 294.3 0.92 294.41 119 1048.82 341.81 9 .38 1146 1251 1263 1265 Reach A 6301.48 290 .57 -0 .22 292.52 32 1400 1833 1833 1865 1865 Reach A 5716.37 290 .07 1.21 290.2 313.99 3 8.12 1161.25 333.63 1300 1592 1655 2400 Reach A 5391.48 289.7 0 .84 289 .93 156 .86 298 .17 826.03 408.79 1450 1632 1659 1700 Reach A 4997.49 287.26 -0.32 288.78 70 104.04 187 .78 1410 1450 1480 4789.43 287.16 287 .25 201 497.35 1596 1738 0 .18 73.24 282 .97 1149 .66 130.37 1100 1156 1175 Reach A 2212.06 273.77 0.02 275 72 1563 1169 1169 1241 1241 Note: Shaded area represents the portion of the stream that crosses the Shenandoah property. McCLURE & BROWNE ENGINEERING/SURVEYING, INC. 1008 Woodcreek Drive, Suite 103 College Station, Texas 77845 (979) 693-3838, FAX 693-2554 TRANSMITTAL LETTER TO: Bridgette George Date: 4-5-04 Job # ------ Asst. Development Manager Attn: RE: Shenandoah Phase 10-17 Preliminary Plat We are sending you the following: ~ Attached D Under Separate Cover Via: D Invoice D Prints D Plans D Contractor Invoice D Bid Books D Specifications D Change Order D Contracts D Other Copies 10 2 1 Date 4-5-04 4-5-04 4-5-04 These are transmitted as follows Description Revised Master Preliminary Plat ---------------------; Floodplain Analysis ---------------------; City Comment Letter Response ----------------------1 ~For Approval D Approved as Submitted Sets to be approved and returned to me --- D For your use D Approved except as noted ---Copies for your files D As Requested D Resubmitted after Revisions Corrected Prints . D For Review Comments D Other REMARKS: COPY TO: SIGNED: Graduate Engineer Shenandoah S ub divisio n Pre li minary P lat Phases 10 -17 Review Response No. 1 The fo llowing is a response to the city review comment letter dated March 30 , 2004 for Shenandoah Subdivision Preliminary Plat Phases 10-17 : ENGINEERING 1. Note: Utility sizes on this plat are not approved if plat is approved. The B/CS Unified Design Guidelines require engineering studies to verify flows , capacities, ve locities , etc . Utility line sizes can only be approved with a complete engineering analysis . In addition, easements and other related items may be required that are not shown on this plat. Water and sewer reports will be turned in with the fir st phase of construction plans . Water and sewer lin es will comply with the BICS Unified D esign Guidelin e requirements. 2. An engineering study is needed to analyze and delineate the boundaries of the floodplain . The plat cannot be approved without such a study . The study should tie-in to the FEMA approved study , establish base flood elevations and show a floodway. Additional concerns are that the cul-de-sacs are extended very close to the channel. No construction documents have been submitted to verify slopes or proximity to the creek channel ; retaining walls; pull-back of roadways , etc. may be required when the Final Plat is submitted with supporting documents. These issues will also be addressed to the Planning and Zoning Commission when the Preliminary Plat goes for consideration. A drainage report for the portion of Spring Creek that extends through this property is attached. Floodplain , floodway , and base elevation s are identified in this report. All of th e cul-de-sacs have been pulled away from the creek chann el. This will be demonstrated with construction docum ents of each phase. 3. As mentioned in the Pre-application Conference, the required ROW along Barron Road was included in a Needs Resolution approved by the City Council. ROW dedication is required on this plat along Barron Road to meet subdivision regulations . Plat does not meet minimum requirements without said dedication. The required ROW dedication has been added to the Preliminary Plat. PLANNING 1. Please provide a pedestrian access point between Petersburg Ct. and the park. A 100 ' wide access point ha s been provided at th e end of Peter sburg Ct. ELECTRICAL 1. Developer installs conduit as per city specs and design. Electrical infrastructure installation will comply with this requirement. Shenandoah Subdivision , Preliminary Plat Phases I 0-17 City Review Response No . l Pagel 2. Developer provides 30 ' ofrigid conduit for riser pole(s ). Developer installs first 1 O'. City installs remainder. Electrical infrastructure installation will comply with this requirement. 3 . Developer installs pull boxes as per city specs and design. (Pull boxes provided by the city). Electrical infrastructure installation will comply with this requirement. 4 . Developer provides digital Auto CAD 2000 version of p lan and/or site plan . Email to rbolin @ cstx.gov . A copy of the plat will be sent to Ronnie Bolin. 5. Developer installs street lighting as per city specs and design. Electrical infrastructure installation will comply with this requirement. 6. Developer provides temporary blanket easement for construction purposes. Electrical infrastructure installation will comply with this requirement. 7 . Developer provides easements for electric infrastructure as installed for electric lines (including street lighting). Electrical infrastructure installation will comply with this requirement. GREENWAYS 1. Spring Creek flows along the Southwestern edge of said property. The area of the creek which falls along said property is classified as a Priority 2 in the 1999 Greenways Master Plan. Spring Creek is categorized as a suburban greenway, whose functions include providing flood control, recreation , and transportation, and serving economic and aesthetic purposes . The 1999 Greenways Master Plan recognizes suburban greenways as having moderate to high levels of use and providing connections between users and their destinations . We envision Spring Creek as providing a valuable connection among adjoining neighborhoods and proposed facilities as this area of College Station is developed. No response required. 2. The Greenways Program would like to see the exact nature of the Greenway dedication and "Greenbelt & Residential Reserve Tract" as shown on the plat. The approximate limits of the proposed Greenway dedication are shown . Shenandoah Subdivision, Preliminary Plat Phases 10-17 City Review Response No. 1 Page 2 l 3. We would like to note that dedication and designation of a suburban greenway does not preclude the ability of a developer or landowner from providing necessary infrastructure to its users , such as sewer lines , as long as the property would require minimal funds for restoration, development, and/or maintenance because it is in a relatively natural state. No response required. 4 . The Bikeway and Pedestrian Master Plan appears to show a bike path traversing the property . This bikeway can be constructed as a transportation mode within the greenway , if designated as such. Th e approx imate lo cation of th e proposed Bikeway has bee n shown. Shenandoah Subdivision , Preliminary Plat Phases I 0-17 City Review Response No. 1 Page3