SF SPLIT FLOW DECK FOR ANALYSIS OF W. BRANCH LLAGAS SPILLS ON HAYES VALLEY FAN. SF 038 * * 001 TN RIGHT SIDE OVERFLOW FROM SECTION 308 TO 310 TN 049 NS2. 308. 310.-1. .045 .005 NS 032 NG0. 285.4 253.1 288.2 NG 030 * * 001 TN RIGHT SIDE OVERFLOW FROM SECTION 306 TO 308 TN 049 NS 3.306. 308. -1. .045 .009 NS 032 NG0. 284.1 35.7 284.1 47.9 285.4 NG 030 * * 001 TN RIGHT SIDE OVERFLOW (NORMAL DEPTH) BETWEEN 304 AND 306 TN 049 NS2. 304. 306. -1. .045 .009 NS 032 NG0. 281.8 472.3 284.1 NG 030 * * 001 TN LEFT SIDE OVERFLOW FROM 303 TO 304 TN 049 NS2. 303. 304. -1. .04 .003 NS 032 NG0. 277.7 500. 280.5 NG 030 * * 001 TN RIGHT SIDE OVERFLOW FROM 303 TO 304 TN 049 NS2. 303. 304. -1. .04 .009 NS 032 NG0. 276.7 500. 281.8 NG 030 * * 001 TN LEFT SIDE OVERFLOW FROM 302 TO 303 TN 049 NS2. 302. 303. -1. .04 .004 NS 032 NG0. 275.3 420. 277.7 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 302 TO 303 TW 050 WS2. 302. 303. -1. 2.6 WS 052 WC0. 275.2 420. 276.7 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 300 TO 302 TN 049 NS2. 300. 302. -1. .040 .005 NS 032 NG0. 275.55 37.6275.3 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 300 TO 302 TW 050 WS2. 300. 302. -1. 2.6 WS 052 WC0. 275.4 37.6275.2 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 292 TO 300 TN 049 NS2. 292. 300. -1. .020 .007 NS 032 NG0. 274.1 32.7 275.55 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 292 TO 300 TW 050 WS2. 292. 300. -1. 2.6 WS 052 WC0. 275.6 32.7 275.4 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 290 TO 292 TN 049 NS2. 290. 292. -1. .035 .010 NS 032 NG0. 274.1 30.3 274.1 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 290 TO 292 TW 050 WS2. 290. 292. -1. 2.6 WS 052 WC0. 275.6 30.3 275.6 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 289 TO 290 TN 049 NS2. 289. 290. -1. .05 .011 NS 032 NG0. 274.4 195.4 274.1 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 289 TO 290 TW 050 WS2. 289. 290. -1. 2.6 WS 052 WC0. 274.2 195.4 275.6 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 288 TO 289 TN 049 NS2. 288. 289. -1. .05 .012 NS 032 NG0. 274.3 9.0 274.4 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 288 TO 289 TW 050 WS2. 288. 289. -1. 2.6 WS 052 WC0. 274.1 9.0 274.2 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 287 TO 288 TN 049 NS2. 287. 288. -1. .043 .012 NS 032 NG0. 271.4 486.9 274.3 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 287 TO 288 TW 050 WS2. 287. 288. -1. 2.6 WS 052 WC0. 271.7 486.9 274.1 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 286 TO 287 TN 049 NS2. 286. 287. -1. .035 .012 NS 032 NG0. 271.3 14. 271.4 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 286 TO 287 TW 050 WS2. 286. 287. -1. 2.6 WS 052 WC0. 271.6 14. 271.7 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 284 TO 286 TN 049 NS2. 284. 286. -1. .035 .011 NS 032 NG0. 269.7 212.5 271.3 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 284 TO 286 TW 050 WS2. 284. 286. -1. 2.6 WS 052 WC0. 269.3 212.5 271.6 WC 051 * * 001 TN LEFT SIDE OVERFLOW FROM 282 TO 284 TN 049 NS2. 282. 284. -1. .035 .010 NS 032 NG0. 269.3 75. 269.7 NG 030 * * 001 TW RIGHT SIDE OVERFLOW FROM 282 TO 284 TW 050 WS2. 282. 284. -1. 2.6 WS 052 WC0. 269.8 25. 269.3 WC 051 EE EE 011 * * 001 T1 SANTA CLARA COUNTY FLOOD INSURANCE STUDY 100-YEAR DISCHARGE T1 039 T2 NOLTE and ASSOCIATES (cda) November 1991 T2 040 T3 W. BRANCH LLAGAS (#17) HIGHLAND AVE. TO HAYES VALLEY (Perched Channel)T3 041 J1 2. -1. 267.9 J1 018 J2-1. -1. J2 019 J3150. 38. 21. 22. 23. 24. 42. 1. 2. 13. J3 020 J314. 15. J3 020 NC.020 .020 .016 0.3 0.5 NC 029 QT1. 850. QT 034 * * 001 * D/S Face Highland Avenue Culvert (6'x 3.55' RCB Culvert) * 001 * * 001 X1276.0 8.04994.9 5003.6 X1 053 X3 4997. 5003. X3 055 GR 267.1 4860.6 268.4 4994.9 265.4 4999.3 265.4 5000.0 265.4 5001.8GR 015 GR 267.9 5003.6 268.1 5025.9 269.2 5300.7 GR 015 * * 001 * U/S Face of Highland Avenue Culvert * 001 * * 001 SB 1.7 2.6 0. 6.0 0. 21.3 0. 265.6 265.4 SB 036 X1280.0 17.0 4996.9 500331.6 31.6 31.6 X1 053 X2 1. 269.15 270.0 X2 054 X310. 4996.9 5003 X3 055 BT -17.0 4694.4 267.6 267.1 4709.6 267.7 267.1 4721.2 267.8 265.8BT 005 BT 4856.1 268.9 267.1 4937.1 269.5 268.1 4993.2 269.9 268.8BT 005 BT 4993.3 269.9 269.2 4996.9 270. 269.15 4997. 270. 269.15BT 005 BT 5000.0 270. 269.15 5003. 270. 269.15 5003.0 270. 269.15BT 005 BT 5013.4 270.1 269.2 5013.5 270.1 269.2 5050.4 270.4 269.4BT 005 BT 5242.7 270.9 269.6 5258.0 271.0 270.5 BT 005 GR 267.1 4694.4 267.1 4709.6 265.8 4721.2 267.1 4856.1 268.1 4937.1GR 015 GR 268.8 4993.2 269.2 4993.3 269.15 4996.9 265.6 4997. 265.6 5000.0GR 015 GR 265.6 5003. 269.15 5003.0 269.2 5013.4 269.2 5013.5 269.4 5050.4GR 015 GR 269.6 5242.7 270.5 5258.0 GR 015 * * 001 NC.035 .035 .027 NC 029 X1282.0 21.04991.1 5004.3 150.0 30.0 61.1 X1 053 X310. 4957.3 5122.7 X3 055 GR 264.9 4505.0 265.1 4565.4 266.5 4674.5 267.2 4725.2 267.6 4799.8GR 015 GR 268.4 4877.5 269.3 4957.3 269.2 4991.1 266.1 4998.4 266.1 5000.0GR 015 GR 266.1 5001.4 268.0 5004.3 268.6 5041.1 268.5 5081.0 269.9 5087.3GR 015 GR 269.8 5122.7 267.6 5138.2 268.0 5171.5 268.2 5279.1 268.6 5369.9GR 015 GR 268.5 5442.2 GR 015 * * 001 NC .1 .3 NC 029 X1284.0 18.04994.4 5007.4 50. 10.0 53.8 X1 053 X310. 4994.4 5085.9 X3 055 GR 266.2 4521.4 266.5 4614.1 267.1 4716.5 268.6 4879.8 269.0 4987.7GR 015 GR 269.7 4994.4 266.4 4998.1 266.4 5000.0 266.4 5003.6 269.5 5007.4GR 015 GR 268.8 5014.1 268.6 5076.6 269.3 5085.9 269.3 5108.8 268.0 5115.9GR 015 GR 268.2 5192.5 267.0 5335.9 266.5 5457.6 GR 015 * * 001 * D/S Face of First Private Driveway Bridge U/S of Highland (Fixed to Ground) * 001 * * 001 NC .03 NC 029 X1286.0 17.04993.3 5006.7 210.6 186.8 212.5 X1 053 X310. 4993.3 5089.9 X3 055 GR 267.7 4527.4 268.0 4633.0 268.8 4794.6 270.7 4936.7 271.3 4993.3GR 015 GR 266.7 4996.5 266.7 5000.0 266.7 5003.5 270.6 5006.7 271.0 5050.6GR 015 GR 270.9 5080.4 271.6 5089.9 271.6 5118.0 269.5 5124.8 269.3 5213.2GR 015 GR 268.4 5347.4 267.6 5494.8 GR 015 * * 001 * U/S Face of Driveway Bridge U/S of Highland Ave. * 001 * * 001 NC .025 NC 029 SB 1.63 2.6 7.0 0. 32.64 1. 266.8 266.7 SB 036 X1287.0 14.0 14.0 14.0 0.1 X1 053 X2 1. 270.0 272.25 X2 054 X310. 4993.3 5089.9 X3 055 BT -17.0 4527.4 267.7 267.7 4633.0 268.0 268.0 4794.6 268.8 268.8BT 005 BT 4936.7 270.7 270.7 4993.3 271.4 271.4 4996.5 272.25 270.0BT 005 BT 5000.0 272.25 270.0 5003.5 272.25 270.0 5006.7 270.7 270.7BT 005 BT 5050.6 271.0 271.0 5080.4 270.9 270.9 5089.9 271.6 271.6BT 005 BT 5118.0 271.6 271.6 5124.8 269.5 269.5 5213.2 269.3 269.3BT 005 BT 5347.4 268.4 268.4 5494.8 267.6 267.6 BT 005 * * 001 * Footbridge and Fences Between Section 286. and 288. are not Fixed to the * 001 * Ground and Assumed to Wash Out * 001 * * 001 * Section 288. D/S Face of 2nd Private Drive Bridge (Fixed to Ground) * 001 * * 001 NC.05 .05 .025 NC 029 X1288.0 17.04992.5 5007.5 494.2 510.9 486.9 -0.1 X1 053 X310. 4992.5 5119.6 X3 055 GR 272.3 4526.7 271.1 4647.7 270.9 4735.7 272.3 4842.9 273.5 4923.4GR 015 GR 274.4 4992.5 270.3 4997. 270.3 5000.0 270.3 5003. 274.4 5007.5GR 015 GR 273.0 5057.2 273.5 5083.6 274.1 5119.6 272.3 5129.3 271.5 5237.5GR 015 GR 270.8 5353.9 270.8 5499.9 GR 015 * * 001 * U/S Face of 2nd Private Drive Bridge * 001 * * 001 NC .022 NC 029 SB 1.63 2.6 6.0 0. 42.0 1.125 270.3 270.2 SB 036 X1289.0 9.0 9.0 9.0 X1 053 X2 1. 274.4 276.8 X2 054 X310. 4992.5 5119.6 X3 055 BT -16. 4526.7 272.3 272.3 4647.7 271.1 271.1 4735.7 270.9 270.9BT 005 BT 4842.9 272.3 272.3 4923.4 273.5 273.5 4992.5 276.7 274.4BT 005 BT 4997. 276.8 274.4 5000.0 276.8 274.4 5003. 276.8 274.4BT 005 BT 5007.5 276.7 274.4 5057.2 273.0 273.0 5083.6 273.5 273.5BT 005 BT 5119.6 274.1 274.1 5129.3 272.3 272.3 5237.5 271.5 271.5BT 005 BT 5353.9 270.8 270.8 BT 005 * * 001 * D/S of Coolidge; End of Timber Sluice (3' high) * 001 * * 001 NC .025 NC 029 X1290.0 20.04995.3 5004.9 208.5 238.6 195.4 X1 053 X310. 4942.7 5116.4 X3 055 GR 272.8 4530.1 272.7 4639.9 272.5 4702.3 273.0 4848.6 274.1 4942.7GR 015 GR 274.1 4985.9 274.0 4995.3 271.3 4995.4 271.3 5000.0 271.3 5004.8GR 015 GR 274.0 5004.9 273.2 5005.0 273.2 5008.3 273.9 5058.0 274.7 5102.0GR 015 GR 275.6 5116.4 275.5 5126.0 273.5 5136.4 273.0 5234.9 272.0 5397.0GR 015 * * 001 * D/S Face of Coolidge Culvert; Begin Timber Sluice * 001 * * 001 NC.02 .02 .016 .3 .5 NC 029 X1292.0 19.04996.9 5003.1 30.3 30.3 30.3 X1 053 X310. 4942.7 5116.4 X3 055 GR 272.7 4639.9 272.5 4702.3 273.0 4848.6 274.1 4942.7 274.1 4985.9GR 015 GR 274.0 4996.9 271.4 4997.0 271.4 5000.0 271.4 5003.0 274.0 5003.1GR 015 GR 273.2 5003.2 273.2 5008.3 273.9 5058.0 274.7 5102.0 275.6 5116.4GR 015 GR 275.5 5126.0 273.5 5136.4 273.0 5234.9 272.0 5397.0 GR 015 * * 001 * U/S Face of Coolidge Culvert; 6'x 3.55' RCB * 001 * CULVERT HAS BEEN EXTENDED FOR WIDENED ROAD SINCE DATE OF PHOTO * 001 * * 001 SB 1.7 2.6 0. 6.0 0. 21.3 0. 272.0 271.85 SB 036 X1300.0 12. 4996.9 5003.68. 68. 68. X1 053 X2 1. 275.55 276.4 X2 054 X310. 4996.9 5140.4 X3 055 BT -12 4695.5 274.3 274.1 4899.3 275.3 274.9 4996.9 276.4 275.55BT 005 BT 4997.0 276.4 275.55 5000. 276.4 275.55 5003. 276.4 275.55BT 005 BT 5003.0 276.4 275.55 5032.5 275.6 274.5 5115.7 275.4 274.7BT 005 BT 5140.4 275.4 275.4 5155.4 273.2 272.9 5409.6 272.2 272.2BT 005 GR 274.1 4695.5 274.9 4899.3 275.55 4996.9 272.0 4997. 272.0 5000.0GR 015 GR 272.0 5003.0 275.55 5003.0 274.5 5032.5 274.7 5115.7 275.4 5140.4GR 015 GR 272.9 5155.4 272.2 5409.6 GR 015 * * 001 * U/S of Coolidge; Orchard in Left Overbank * 001 * * 001 ET 9.1 4960 5040ET 014 NC.055 .035 .05 NC 029 X1302.0 19.04992.4 5006.4 27.3 72.0 37.6 X1 053 X310. X3 055 GR 273.2 4583.4 274.3 4713.7 274.7 4833.8 275.3 4932.0 275.1 4953.9GR 015 GR 274.9 4992.4 272.2 4998.0 272.2 5000.0 272.2 5001.0 274.4 5006.4GR 015 GR 274.0 5030.1 274.2 5050.1 274.0 5060.3 273.8 5096.8 274.3 5146.4GR 015 GR 275.2 5154.2 275.2 5175.1 273.3 5185.4 273.3 5270.6 GR 015 * * 001 NC .055 .1 .3 NC 029 X1303. 9.4992.3 5005.3 420. 420. 420. X1 053 X310. 4948.8 5125.0 X3 055 GR 277.7 4948.8 277.0 4992.3 274.6 4996.1 274.6 5000.0 274.6 5002.0GR 015 GR 276.6 5005.3 276.6 5086.8 276.7 5200.1 276.6 5278.3 GR 015 * * 001 NC.035 .05 .035 NC 029 X1304.0 14.04992.8 5010.4 500.0 500.0 500. X1 053 X310. 4962.4 5224.8 X3 055 GR 279.5 4645.6 280.2 4855.3 280.5 4962.4 280.1 4992.8 277.2 4997.7GR 015 GR 276.8 5000.0 276.8 5003.4 280.3 5010.4 281.2 5050.2 281.3 5156.7GR 015 GR 281.6 5206.0 281.8 5224.8 280.8 5244.0 280.9 5361.7 GR 015 * * 001 * Begin Hayes Valley * 001 * * 001 NC.05 NC 029 X1306.0 20.04983.9 5017.9 500. 448.0 472.3 X1 053 X3 10 5140.6 X3 055 GR400.2 4538.5 387.1 4587.1 363.4 4645.8 330.9 4723.2 307.9 4796.4 GR 015 GR295.2 4860.3 288.7 4922.5 285.8 4948.6 283.5 4983.9 279.5 4994.3 GR 015 GR279.3 5000.0 279.5 5007.6 280.7 5017.9 281.9 5038.5 284.1 5072.9 GR 015 GR283.7 5140.6 283.0 5215.6 282.2 5280.8 282.2 5309.7 281.5 5359.1 GR 015 * * 001 * Just D/S of Culvert * 001 * * 001 NC 0.3 0.5 NC 029 ET ET 014 X1306.5 13. 4993.7 5005.31 15.5 8.9 12.2 X1 053 X310. X3 055 GR288.7 4922. 285.8 4948.6 283.5 4983.9 279.77 4993.7 279.77 4994.07 GR 015 GR279.4 4994.9 279.4 5000. 279.4 5005.31 279.4 5006. 279.5 5007.6 GR 015 GR280.7 5017.9 281.9 5038.5 284.1 5079.9 GR 015 * * 001 * 5'x 5.3' Box Culvert w/ (2) 30" Dia. RCP Culverts in Headwall * 001 * * 001 NC .016 NC 029 ET 9.1 4984 5066ET 014 X1306.6 23. 4993.7 5005.311. 1. 1. X1 053 X3 10 X3 055 BT-23. 4922. 288.7 288.7 4948.6 285.8 285.8 4983.9 285.7 283.5 BT 005 BT 4993.7 285.7 280.65 4994.07 285.7 281.53 4994.95 285.7 281.9 BT 005 BT 4995.83 285.7 281.53 4996.2 285.7 280.65 4997. 285.7 280.65 BT 005 BT 4997.37 285.7 281.53 4998.25 285.7 281.90 4999.13 285.7 281.53 BT 005 BT 4999.5 285.7 280.65 5000. 285.7 280.65 5000.3 285.7 280.65 BT 005 BT 5000.31 285.7 284.7 5005.3 285.7 284.7 5005.31 285.7 279.4 BT 005 BT 5006. 285.7 279.4 5007.6 285.3 279.5 5017.9 285.0 280.7 BT 005 BT 5038.5 284.7 281.9 5072.9 284.1 284.1 BT 005 GR288.7 4922. 285.8 4948.6 283.5 4983.9 280.65 4993.7 279.77 4994.07 GR 015 GR279.4 4994.95 279.77 4995.83 280.65 4996.2 280.65 4997. 279.77 4997.37 GR 015 GR279.4 4998.25 279.77 4999.13 280.65 4999.5 280.65 5000. 280.65 5000.3 GR 015 GR279.4 5000.31 279.4 5005.3 279.4 5005.31 279.4 5006. 279.5 5007.6 GR 015 GR280.7 5017.9 281.9 5038.5 284.1 5072.9 GR 015 * * 001 ET 9.1 4963 5072.9ET 014 X1307. 21.5 21.5 21.5 X1 053 X2 1. X2 054 X3 10 X3 055 * * 001 * Just U/S of Culvert * 001 * * 001 ET 9.1 4963 5073ET 014 NC .035 NC 029 X1307.5 13. 4993.7 5005.31 1. 1. 1. .05 X1 053 X310. X3 055 GR288.7 4922. 285.8 4948.6 283.5 4983.9 279.77 4993.7 279.77 4994.07 GR 015 GR279.4 4994.9 279.4 5000. 279.4 5005.31 279.4 5006. 279.5 5007.6 GR 015 GR280.7 5017.9 281.9 5038.5 284.1 5079.9 GR 015 * * 001 ET 9.1 4951 5094ET 014 X1308.0 23.04980.2 5035.3 15.5 8.9 12.2 X1 053 X310. X3 055 GR 375.1 4614.7 357.8 4656.0 334.1 4709.0 313.2 4761.0 304.9 4796.5GR 015 GR 295.4 4842.1 288.7 4903.2 287.8 4928.8 284.7 4966.4 280.9 4980.2GR 015 GR 279.5 4995.4 279.5 5000.0 279.5 5002.5 282.0 5014.3 283.9 5035.3GR 015 GR 284.4 5060.3 285.4 5110.5 284.7 5170.2 283.7 5222.2 282.9 5272.6GR 015 GR 282.4 5301.2 281.7 5313.1 281.8 5448.9 GR 015 * * 001 X1310.0 24.04987.7 5009.9 132.5 551.0 253.1 X1 053 X310. 5139.4 X3 055 GR 329.2 4641.4 317.9 4672.4 314.6 4686.3 309.1 4697.2 308.3 4707.0GR 015 GR 303.9 4719.3 301.1 4739.6 293.5 4796.3 289.3 4839.7 286.6 4881.9GR 015 GR 284.8 4927.4 285.6 4979.2 284.9 4987.7 282.4 4998.4 282.4 5000.0GR 015 GR 282.4 5001.8 284.7 5009.9 286.4 5027.4 287.2 5076.3 288.2 5139.4GR 015 GR 286.7 5191.5 286.6 5298.6 285.8 5383.2 284.7 5430.0 GR 015 * * 001 NC.035 .035 NC 029 X1312.0 27.04986.1 5079.4 702.1 677.7 716.2 X1 053 X310. X3 055 GR 322.6 4569.1 315.0 4605.1 314.6 4619.3 310.8 4637.3 302.8 4691.0GR 015 GR 296.0 4759.3 294.4 4852.3 292.7 4930.8 294.1 4950.1 294.0 4973.6GR 015 GR 292.7 4986.1 286.7 4997.1 286.7 5000.0 286.7 5002.4 287.6 5007.9GR 015 GR 289.7 5030.7 290.4 5055.1 293.7 5079.4 294.4 5126.5 294.0 5224.8GR 015 GR 293.5 5314.5 294.0 5360.9 295.3 5378.4 295.6 5396.2 294.6 5418.8GR 015 GR 293.4 5454.4 293.8 5497.0 GR 015 EJ EJ 012 ER ER 013