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I I I I I I I I I I I I I I I I I I I Table 6-2 Floodway Table Lena Gulch LOCATION FLOOOPLAIN DATA l-FOOT RISE FLOOOWAY DATA D.5-FOOT RISE FLOOOWAY DATA 100-YR DATA 10-YR DATA 50-YR DATA 500-YR DATA DISTANCES LOOKING DOWNSTREAM DISTANCES LOOKING DOWNSTREAM DIS- THALWEG FLOOO MEAN F.P. DIS- FLOOO DIS- FLOOO DIS- FLOOO FLOOOWAY WIDTH FLOOOWAY MEAN FLOOOWAY WIDTH FLOOOWAY MEAN SHT RCH SECT_ CHARGE ELEV_ ELEV. VEL. WIDTH CHARGE ELEV. CHARGE ELEV. CHARGE ELEV. LEFT RIGHT TOTAL ELEV. VEL. LEFT RIGHT TOTAL ELEV. VEL. 1/ 1/ 1/ (CFS) (FT) (FT) (FPS) (FT) (CFS) (FT) (CFS) (FT) (CFS) (FT) (FT) (FT) (FT) (FT) (FPS) (FT) (FT) (FT) (FT) (FPS) 10 L-3 228.50 3900 5625.2 5635.0 17.7 80 1520 5632.0 2980 5633.4 7800 5644.6 * 5635.0 17.7 * 5635.0 17.7 10 L-3 228.n 3900 5626.3 5639.8 5.9 120 1520 5632.3 2980 5637.1 7800 5644.7 * 5639.8 5.9 * 5639.8 5.9 10 L-3 229.28 3900 5635.5 5639.5 8.6 140 1520 5637.6 2980 5638.5 7800 5644.7 * 5639.5 9.7 * 5639_5 9.7 lD L-3 229.75 3900 5629.9 5640.6 3.0 160 1520 5638.5 2980 5639.9 7800 5645.1 * 5640.8 2.9 * 5640.8 2.9 10 L-3 232.85 3900 5633.0 5640.4 6.3 120 1520 5638.4 298D 5639.7 7800 5644.9 * 5640.6 6.1 * 5640.6 6.1 10 L-3 236.65 3900 5634.7 5646.8 13.7 80 1520 5643.6 2980 5645.7 7800 5649.9 * 5646.9 10.6 * 5646.9 10.6 10 L-3 239.88 3850 5647.5 5656.0 12.9 50 1490 5652.8 2950 5655.0 7800 5660.1 * 5656.0 t3.0 * 5656.0 13.0 10 L-3 240.35 3850 5649.9 5656.8 12.6 50 1490 5654.7 2950 5657.5 78DD 5664.3 * 5656.8 12.6 * 5656.8 12.6 10 L-3 243.25 3850 5651.8 5657.7 24.0 40 1490 5657.6 2950 5661.1 7800 5674.2 * 5657.7 20.7 * 5657.7 20.7 10 L-3 243.65 3850 5652.7 5665.4 10.5 60 1490 5661.3 2950 5663.2 7800 5674.8 * 5665.4 10.5 * 5665.4 10.5 9 L-3 246.78 3850 5659.5 5667.5 9.7 70 1490 5664.4 2950 5666.7 7800 5675.1 * 5667.5 9.6 * 5667.5 9.6 9 L-3 246.90 3850 5659.7 5667.6 15.6 70 1490 5664.2 2950 5666.4 7800 5674.2 * 5667.8 10.1 * 5667.8 10.1 9 L-3 250.40 3850 5660.9 5674.7 8.3 60 1490 5666.7 2950 5670.2 7800 5691.0 * 5674.9 5.4 * 5674.9 5.4 9 L-3 250.68 3850 5661.5 5675.1 6.1 60 t490 5666.8 2950 5670.8 7800 5691.2 * 5675.3 5.6 * 5675.3 5.6 9 L-3 255.90 3850 5667.9 5678_0 14.9 40 1490 5674.t 2950 5676.7 7800 5691.1 * 5678.0 14.9 * 5678.0 14.9 9 L-3 256.15 3850 5668.4 5679.0 13.1 35 1490 5675.6 2950 5678.1 7800 5690.6 * 5679.0 lD.6 * 5679.0 10.6 9 L-3 259.50 3850 56n.5 5686.3 8.0 610 1490 5675.7 2950 5681.2 7800 5693.2 20 70 90 5686.3 4.8 20 70 90 5686.3 4.8 9 L-3 259.77 3800 5674.4 5686.6 5.8 370 1450 5680.2 2905 5681.8 7700 5693.8 20 70 9D 5686.6 4.9 20 70 90 5686.6 4.9 9 L-3 260.48 3800 5679.2 5686.6 12.4 100 1450 5683.5 2905 5685.0 7700 5693.7 * 5685.8 10.7 * 5685.8 10.7 9 L-3 261.22 3800 5679.3 5687.8 5.3 145 1450 5684.8 2905 5686.8 7700 5694.2 * 5687.8 4.8 * 5687.8 4.8 9 L-3 262.05 3800 5682.5 5688.8 10.8 110 1450 5686.6 2905 5688.1 7700 5693.8 * 5688.9 10.6 * 5688.9 10.6 9 L-3 262.80 3800 5684.0 5690.0 10.3 110 1450 5687.8 2905 5689.2 7700 5693.8 * 5690.0 9.2 * 5690.0 9.2 9 L-3 263.55 3800 5688.1 5693.8 11.3 110 1450 5691.9 2905 5693.2 7700 5696.2 * 5693.9 10.0 * 5693.9 10.0 9 L-3 264.38 3800 5688.9 5695.1 9.5 125 1450 5693.0 2905 5694.4 7700 5697.4 * 5695.1 8.7 * 5695.1 8.7 9 L-3 265.14 3800 5692.t 5697.9 10.5 120 1450 5696.2 2905 5697.3 7700 5700.1 * 5697.9 10.1 * 5697.9 10.1 9 L-3 268.00 3800 5693.9 5700.4 7.2 140 1450 5698.4 2905 5699.8 7700 5702.3 * 5700.4 6.5 * 5700.4 6.5 9 L-3 271.38 3800 5695.0 5701.8 12.0 150 1450 5699.7 2905 5701.0 7700 5704.6 25 50 75 5701.8 tl.8 25 50 75 5701.8 11.8 9 L-3 2n.45 3670 5701.0 5707.4 8.8 230 1025 5705.4 2020 5706.3 7540 5709.0 30 70 100 5707.4 10.7 30 75 105 5707.4 10.4 9 L-4 273.92 3670 5702.9 5708.9 10.1 160 1025 5707.2 2020 5708.1 7540 5710.7 50 30 80 5709.2 11.4 55 45 100 5709.1 10.0 8 L-4 275 .38 3670 5704.9 5710.9 8.8 230 1025 5708.7 2020 5709.7 7540 5712.5 80 90 170 5711.6 6.3 80 95 175 5711.0 7.8 8 L-4 275.70 2700 5705.1 5712.0 4.7 300 1025 5709.4 2020 5710.5 6400 5713.3 80 90 t70 5712.1 4.1 90 85 175 5712.0 4.3 8 L-4 276.08 2700 5706.0 5713.7 5.3 330 1025 5712.5 2020 5713.3 6400 5715.1 90 80 170 5714.2 3.3 100 90 190 5714.1 3.0 8 L-4 276.13 2700. 5706.1 5713.7 3.4 340 1025 5712.5 2020 5713.3 6400 5715.1 80 90 170 5714.2 3.3 105 90 195 5714.1 3.1 8 L-4 280.55 2700 5716.1 5720.6 7.6 290 1025 5719.6 2020 5nO.2 6400 5nl.7 30 80 110 5nO.9 9.3 35 110 145 5nO.7 7.9 8 L-4 285.28 2700 5nl.8 5728.3 8.2 270 1025 5n6.4 2020 5n7.8 6400 5729.7 40 50 90 5n8.3 9.8 50 100 150 5n8.3 7.9 8 L-4 285.50 2700 5n1.9 5n8.4 9.4 290 1025 5n6.0 2020 5n8.2 6400 5730.6 35 55 80 5n9.3 6.5 50 80 130 5n8.7 6.2 8 L-4 285.60 2700 5n1.9 5733.3 5.5 360 1025 5728.3 2020 5732.6 6400 5736.4 40 40 80 5734.1 3.7 45 70 lt5 5733.6 3.3 8 L-4 285 . 78 2700 5n2.0 5733.4 3.3 360 t025 5n9.2 2020 5732.7 6400 5736.6 40 40 80 5734.3 3.9 45 65 110 5733.7 3.5 8 L-4 289.00 2700 5730.0 5736.5 7.7 360 t025 5735.6 2020 5736.2 6400 5737.6 80 40 120 5736.8 8.6 125 70 195 5736.6 6.6 8 L-4 289.40 2700 5732.0 5739.0 3.7 470 1025 5738.2 2020 5738.8 6400 5740.2 100 60 160 5739.9 3.0 140 90 230 5739.4 2.4 8 L-5 289.55 2700 5732.1 5739.0 3.1 450 810 5738.2 1670 5738.7 5700 5740~ 1 110 100 210 5740.0 2.4 130 110 240 5739.5 2.4 8 L-5 295.28 2150 5741.8 5745.9 6.9 400 8tO 5744.3 1670 5745.4 5700 5747.1 50 70 120 5745.9 8.2 55 70 125 5745.9 8.2 8 L-5 298.55 2150 5747.3 5754.6 9.4 510 810 5753.1 1670 5754.6 5700 5758.1 30 20 50 5755.5 11.3 30 20 50 5755.5 11.3 8 L-5 298.85 2150 5747.7 5759.5 1.7 560 810 5753.2 1670 5758.5 5700 5763.8 20 30 50 5759.5 6.4 20 35 55 5759.5 5.2 8 L-5 302.10 2150 5755.5 5762.1 10.1 60 810 5760.3 1670 5761.5 5700 5765.9 50 5 55 5762.1 10.9 50 5 55 5762.1 10.9 7 L-5 304.80 2150 5764.2 5769.7 11.1 50 810 5767.3 1670 5769.0 5700 5771.8 * 5769.7 11.1 * 5769.7 11.1 7 L-5 307.92 2150 5771.0 5779.0 9.2 190 810 5m.9 1670 5778.8 5700 5780.4 60 5 65 5779.3 9.0 100 5 105 5779.0 7.9 7 L-5 311.70 2150 5783.0 5788.0 6.7 260 810 5786.8 1670 5787.9 5700 5788.9 70 30 100 5788.3 8.9 95 130 225 5788.3 7.0 7 L-5 311.85 2150 5783.4 5788.4 7.9 270 810 5786.9 1670 5788.1 5700 5789.4 70 40 110 5788.6 7.4 90 130 220 5788.6 5.4 21