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<br />Table 6-2 <br /> <br />I <br /> <br />Floodway Table <br /> <br />I <br /> <br />Lena Gulch <br /> <br />I <br /> <br />0.5-FOOT RISE FLOOOWAY DATA <br /> <br />MEAN <br />VEL. <br />eFPS) <br /> <br />DISTANCES LOOKING DOWNSTREAM <br /> <br />FLOOOWAY <br />ELEV. <br />eFT) <br /> <br />FLOODWAY WIDTH <br />LEFT RIGHT TOTAL <br />eFT) eFT) eFT) <br /> <br />17.7 <br />5.9 <br />9.7 <br />2.9 <br />6.1 <br />10.6 <br />13.0 <br />12.6 <br />20.7 <br />10.5 <br />9.6 <br />10.1 <br />5.4 <br />5.6 <br />14.9 <br />10.6 <br />4.8 <br />4.9 <br />10.7 <br />4.8 <br />10.6 <br />9.2 <br />10.0 <br />8.7 <br />10.1 <br />6.5 <br />11.8 <br />10.4 <br /> <br />5635.0 <br />5639.8 <br />5639.5 <br />5640.8 <br />5640.6 <br />5646.9 <br />5656.0 <br />5656.8 <br />5657.7 <br />5665.4 <br />5667.5 <br />5667.8 <br />5674.9 <br />5675.3 <br />5678.0 <br />5679.0 <br />5686.3 <br />5686.6 <br />5685.8 <br />5687.8 <br />5688.9 <br />5690.0 <br />5693.9 <br />5695.1 <br />5697.9 <br />5700.4 <br />5701.8 <br />5707.4 <br /> <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />90 <br />90 <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />* <br />75 <br />105 <br /> <br />70 <br />70 <br /> <br />20 <br />20 <br /> <br />10.0 <br />7.8 <br />4.3 <br />3.0 <br />3.1 <br />7.9 <br />7.9 <br />6.2 <br />3.3 <br />3.5 <br />6.6 <br />2.4 <br /> <br />5709.1 <br />5711.0 <br />5712.0 <br />5714.1 <br />5714.1 <br />5nO.7 <br />5n8.3 <br />5n8.7 <br />5733.6 <br />5733.7 <br />5736.6 <br />5739.4 <br /> <br />100 <br />175 <br />175 <br />190 <br />195 <br />145 <br />150 <br />130 <br />115 <br />110 <br />195 <br />230 <br /> <br />50 <br />75 <br /> <br />45 <br />95 <br />85 <br />90 <br />90 <br />110 <br />100 <br />80 <br />70 <br />65 <br />70 <br />90 <br /> <br />2.4 <br />8.2 <br />11.3 <br />5.2 <br />10.9 <br />11.1 <br />7.9 <br />7.0 <br />5.4 <br /> <br />5739.5 <br />5745.9 <br />5755.5 <br />5759.5 <br />5762.1 <br />5769.7 <br />5779.0 <br />5788.3 <br />5788.6 <br /> <br />240 <br />125 <br />50 <br />55 <br />55 <br />* <br />105 <br />225 <br />220 <br /> <br />110 <br />70 <br />20 <br />35 <br />5 <br />5 <br />130 <br />130 <br /> <br />130 <br />55 <br />30 <br />20 <br />50 <br />100 <br />95 <br />90 <br /> <br /> 1-FooT RISE FLOODWAY DATA <br /> DISTANCES LOOKING DOWNSTREAM <br /> - <br />FLOODWAY WIDTH FLOOOWAY MEAN <br />LEFT RIGHT TOTAL ELEV. VEL. <br />eFT) eFT) eFT) eFT) eFPS) <br />- - - <br /> * 5635.0 17.7 <br /> * 5639.8 5.9 <br /> * 5639.5 9.7 <br /> * 5640.8 2.9 <br /> * 5640.6 6.1 <br /> * 5646.9 10.6 <br /> * 5656.0 13.0 <br /> * 5656.8 12.6 <br /> * 5657.7 20.7 <br /> * 5665.4 10.5 <br /> * 5667.5 9.6 <br /> * 5667.8 10.1 <br /> * 5674.9 5.4 <br /> * 5675.3 5.6 <br /> * 5678.0 14.9 <br /> * 5679.0 10.6 <br />20 70 90 5686.3 4.8 <br />20 70 90 5686.6 4.9 <br /> * 5685.8 10.7 <br /> * 5687.8 4.8 <br /> * 5688.9 10.6 <br /> * 5690.0 9.2 <br /> * 5693.9 10.0 <br /> * 5695.1 8.7 <br /> * 5697.9 10.1 <br /> * 5700.4 6.5 <br />25 50 75 5701.8 11.8 <br />30 70 100 5707.4 10.7 <br />50 30 80 5709.2 11.4 <br />80 90 170 5711.6 6.3 <br />80 90 170 5712.1 4.1 <br />90 80 170 5714.2 3.3 <br />80 90 170 5714.2 3.3 <br />30 80 110 5nO.9 9.3 <br />40 50 90 5n8.3 9.8 <br />35 55 80 5n9.3 6.5 <br />40 40 80 5734.1 3.7 <br />40 40 80 5734.3 3.9 <br />80 40 120 5736.8 8.6 <br />100 60 160 5739.9 3.0 <br />110 100 210 5740.0 2.4 <br />50 70 120 5745.9 8.2 <br />30 20 50 5755.5 11.3 <br />20 30 50 5759.5 6.4 <br />50 5 55 5762.1 10.9 <br /> * 5769.7 11.1 <br />60 5 65 5779.3 9.0 <br />70 30 100 5788.3 8.9 <br />70 40 110 5788.6 7.4 <br /> <br />FLOODPLAIN DATA <br /> <br />LOCATION <br /> <br />I <br /> <br />500-YR DATA <br /> <br />FLOOD <br />ELEV. <br />eFT) <br /> <br />DIS- <br />CHARGE <br />(CFS) <br /> <br />50-YR DATA <br /> <br />FLOOD <br />ELEV. <br />eFT) <br /> <br />DIS- <br />CHARGE <br />eCFS) <br /> <br />10-YR DATA <br /> <br />FLOOD <br />ELEV. <br />eFT) <br /> <br />DIS- <br />CHARGE <br />(CFS) <br /> <br />F.P. <br />WIDTH <br />(FT) <br /> <br />MEAN <br />VEL. <br />(FPS) <br /> <br />100-YR DATA <br /> <br />FLOOD <br />ELEV. <br />(FT) <br /> <br />THALWEG <br />ELEV. <br />(FT) <br /> <br />DIS- <br />CHARGE <br />(CFS) <br /> <br />SECT. <br /># <br /> <br />RCH <br /># <br /> <br />SHT <br /># <br /> <br />I <br /> <br />5644.6 <br />5644.7 <br />5644.7 <br />5645.1 <br />5644.9 <br />5649.9 <br />5660.1 <br />5664.3 <br />5674.2 <br />5674.8 <br />5675.1 <br />5674.2 <br />5691.0 <br />5691.2 <br />5691.1 <br />5690.6 <br />5693.2 <br />5693.8 <br />5693.7 <br />5694.2 <br />5693.8 <br />5693.8 <br />5696.2 <br />5697.4 <br />5700.1 <br />5702.3 <br />5704.6 <br />5709.0 <br /> <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7800 <br />7700 <br />7700 <br />7700 <br />7700 <br />7700 <br />7700 <br />7700 <br />7700 <br />7700 <br />7700 <br />7540 <br /> <br />5633.4 <br />5637. 1 <br />5638.5 <br />5639.9 <br />5639.7 <br />5645.7 <br />5655.0 <br />5657.5 <br />5661.1 <br />5663.2 <br />5666.7 <br />5666.4 <br />5670.2 <br />5670.8 <br />5676.7 <br />5678.1 <br />5681.2 <br />5681.8 <br />5685.0 <br />5686.8 <br />5688.1 <br />5689.2 <br />5693.2 <br />5694.4 <br />5697.3 <br />5699.8 <br />5701.0 <br />5706.3 <br /> <br />2980 <br />2980 <br />2980 <br />2980 <br />2980 <br />2980 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2950 <br />2905 <br />2905 <br />2905 <br />2905 <br />2905 <br />2905 <br />2905 <br />2905 <br />2905 <br />2905 <br />2020 <br /> <br />5632.0 <br />5632.3 <br />5637.6 <br />5638.5 <br />5638.4 <br />5643.6 <br />5652.8 <br />5654.7 <br />5657.6 <br />5661.3 <br />5664.4 <br />5664.2 <br />5666.7 <br />5666.8 <br />5674.1 <br />5675.6 <br />5675.7 <br />5680.2 <br />5683.5 <br />5684.8 <br />5686.6 <br />5687.8 <br />5691.9 <br />5693.0 <br />5696.2 <br />5698.4 <br />5699.7 <br />5705.4 <br /> <br />1520 <br />1520 <br />1520 <br />1520 <br />1520 <br />1520 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1490 <br />1450 <br />1450 <br />1450 <br />1450 <br />1450 <br />1450 <br />1450 <br />1450 <br />1450 <br />1450 <br />1025 <br /> <br />80 <br />120 <br />140 <br />160 <br />120 <br />80 <br />50 <br />50 <br />40 <br />60 <br />70 <br />70 <br />60 <br />60 <br />40 <br />35 <br />610 <br />370 <br />100 <br />145 <br />110 <br />110 <br />110 <br />125 <br />120 <br />140 <br />150 <br />230 <br /> <br />17.7 <br />5.9 <br />8.6 <br />3.0 <br />6.3 <br />13.7 <br />12.9 <br />12.6 <br />24.0 <br />10.5 <br />9.7 <br />15.6 <br />8.3 <br />6.1 <br />14.9 <br />13.1 <br />8.0 <br />5.8 <br />12.4 <br />5.3 <br />10.8 <br />10.3 <br />11.3 <br />9.5 <br />10.5 <br />7.2 <br />12.0 <br />8.8 <br /> <br />5635.0 <br />5639.8 <br />5639.5 <br />5640.6 <br />5640.4 <br />5646.8 <br />5656.0 <br />5656.8 <br />5657.7 <br />5665.4 <br />5667.5 <br />5667.6 <br />5674.7 <br />5675.1 <br />5678.0 <br />5679.0 <br />5686.3 <br />5686.6 <br />5686.6 <br />5687.8 <br />5688.8 <br />5690.0 <br />5693.8 <br />5695. 1 <br />5697.9 <br />5700.4 <br />5701.8 <br />5707.4 <br /> <br />5625.2 <br />5626.3 <br />5635.5 <br />5629.9 <br />5633.0 <br />5634.7 <br />5647.5 <br />5649.9 <br />5651.8 <br />5652.7 <br />5659.5 <br />5659.7 <br />5660.9 <br />5661.5 <br />5667.9 <br />5668.4 <br />56n.5 <br />5674.4 <br />5679.2 <br />5679.3 <br />5682.5 <br />5684.0 <br />5688.1 <br />5688.9 <br />5692.1 <br />5693.9 <br />5695.0 <br />5701.0 <br /> <br />3900 <br />3900 <br />3900 <br />3900 <br />3900 <br />3900 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3850 <br />3800 <br />3800 <br />3800 <br />3800 <br />3800 <br />3800 <br />3800 <br />3800 <br />3800 <br />3800 <br />3670 <br /> <br />228.50 <br />228. n <br />229.28 <br />229. 75 <br />232.85 <br />236.65 <br />239.88 <br />240.35 <br />243.25 <br />243.65 <br />246.78 <br />246.90 <br />250.40 <br />250.68 <br />255.90 <br />256.15 <br />259.50 <br />259.77 <br />260.48 <br />261.22 <br />262.05 <br />262.80 <br />263.55 <br />264.38 <br />265.14 <br />268.00 <br />271.38 <br />2n.45 <br /> <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br />L-3 <br /> <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br />9 <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />25 <br />30 <br /> <br />55 <br />80 <br />90 <br />100 <br />105 <br />35 <br />50 <br />50 <br />45 <br />45 <br />125 <br />140 <br /> <br />5710.7 <br />5712.5 <br />5713.3 <br />5715.1 <br />5715.1 <br />5n1.7 <br />5n9.7 <br />5730.6 <br />5736.4 <br />5736.6 <br />5737.6 <br />5740.2 <br /> <br />7540 <br />7540 <br />6400 <br />6400 <br />6400 <br />6400 <br />6400 <br />6400 <br />6400 <br />6400 <br />6400 <br />6400 <br /> <br />5708.1 <br />5709.7 <br />5710.5 <br />5713.3 <br />5713.3 <br />5nO.2 <br />5n7.8 <br />5n8.2 <br />5732.6 <br />5732.7 <br />5736.2 <br />5738.8 <br /> <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br />2020 <br /> <br />5707.2 <br />5708.7 <br />5709.4 <br />5712.5 <br />5712.5 <br />5719.6 <br />5n6.4 <br />5n6.0 <br />5n8.3 <br />5n9.2 <br />5735.6 <br />5738.2 <br /> <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br />1025 <br /> <br />160 <br />230 <br />300 <br />330 <br />340 <br />290 <br />270 <br />290 <br />380 <br />360 <br />360 <br />470 <br /> <br />10.1 <br />8.8 <br />4.7 <br />5.3 <br />3.4 <br />7.6 <br />8.2 <br />9.4 <br />5.5 <br />3.3 <br />7.7 <br />3.7 <br /> <br />5708.9 <br />5710.9 <br />5712.0 <br />5713.7 <br />5713.7 <br />5 no. 6 <br />5n8.3 <br />5n8.4 <br />5733.3 <br />5733.4 <br />5736.5 <br />5739.0 <br /> <br />5702.9 <br />5704.9 <br />5705.1 <br />5706.0 <br />5706.1 <br />5716.1 <br />5n1.8 <br />5n1.9 <br />5721.9 <br />5n2.0 <br />5730.0 <br />5732.0 <br /> <br />3670 <br />3670 <br />2700 <br />2700 <br />2700 <br />2700 <br />2700 <br />2700 <br />2700 <br />2700 <br />2700 <br />2700 <br /> <br />273.92 <br />275.38 <br />275.70 <br />276.08 <br />276.13 <br />280.55 <br />285.28 <br />285.50 <br />285.60 <br />285.78 <br />289.00 <br />289.40 <br /> <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br />L-4 <br /> <br />9 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br />8 <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />5740.1 <br />5747.1 <br />5758.1 <br />5763.8 <br />5765.9 <br />5771.8 <br />5780.4 <br />5788.9 <br />5789.4 <br /> <br />5700 <br />5700 <br />5700 <br />5700 <br />5700 <br />5700 <br />5700 <br />5700 <br />5700 <br /> <br />5738.7 <br />5745.4 <br />5754.6 <br />5758.5 <br />5761.5 <br />5769.0 <br />5778.8 <br />5787.9 <br />5788.1 <br /> <br />1670 <br />1670 <br />1670 <br />1670 <br />1670 <br />1670 <br />1670 <br />1670 <br />1670 <br /> <br />5738.2 <br />5744.3 <br />5753.1 <br />5753.2 <br />5760.3 <br />5767.3 <br />5m.9 <br />5786.8 <br />5786.9 <br /> <br />810 <br />810 <br />810 <br />810 <br />810 <br />810 <br />810 <br />810 <br />810 <br /> <br />450 <br />400 <br />510 <br />560 <br />60 <br />50 <br />190 <br />260 <br />270 <br /> <br />3.1 <br />6.9 <br />9.4 <br />1.7 <br />10.1 <br />11.1 <br />9.2 <br />6.7 <br />7.9 <br /> <br />5739.0 <br />5745.9 <br />5754.6 <br />5759.5 <br />5762.1 <br />5769.7 <br />5779.0 <br />5788.0 <br />5788.4 <br /> <br />5732.1 <br />5741.8 <br />5747.3 <br />5747.7 <br />5755.5 <br />5764.2 <br />5771.0 <br />5783.0 <br />5783.4 <br /> <br />2700 <br />2150 <br />2150 <br />2150 <br />2150 <br />2150 <br />2150 <br />2150 <br />2150 <br /> <br />289.55 <br />295.28 <br />298.55 <br />298.85 <br />302.10 <br />304.80 <br />307.92 <br />311. 70 <br />311.85 <br /> <br />L-5 <br />L-5 <br />L-5 <br />L-5 <br />L-5 <br />L-5 <br />L-5 <br />L-5 <br />L-5 <br /> <br />8 <br />8 <br />8 <br />8 <br />8 <br />7 <br />7 <br />7 <br />7 <br /> <br />I <br /> <br />I <br /> <br />20 <br /> <br />I <br /> <br />I <br />