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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Genera I <br />stream <br />Thalweg <br />51-a. Elev. <br /> <br />Cross <br />Section <br />Number <br /> <br />162621 12+20 5345.9 <br />17503 19+15 5351.0 <br /> <br />21823 23+50 57.8 <br /> <br />26253 27+90 58.0 <br />30703 32+45 60.5 <br />36053 37+80 61.0 <br />40133 41+80 61.9 <br /> <br />43953 45+40 64.0 <br />45093 46+45 64.4 <br /> <br />46000 47+70 65.5 <br />46403 48+25 66.1 <br /> <br />48683 50+05 67.0 <br />50700 51+60 67.9 <br /> <br />50710 52+40 68.5 <br /> <br />51953 53+30 69.1 <br />55123 56+50 70.0 <br />57163 58+50 61.8 <br /> <br />59203 60+60 73.5 <br />60453 61+90 74.1 <br />63223 64+70 77.6 <br />63843 65+40 78.3 <br /> <br />TABLE IV-2 (cont.) <br />FLOODPLAIN AND FLOODWAY INFORMATION <br />VANBIBBER CREEK <br /> <br />100-Year <br />Wa tar Sur. <br />Elev. <br /> <br />100-Year Floodplain <br />Floodplain Floodplain <br />Top WIdth VelocIty <br />1ft) (ft/see) <br /> <br />Floodway <br />Water Surf. <br />ElevatIon <br /> <br />100-Year Floodway 1/2' RIse <br />Flood.ay Floodway* Floodway <br />Top Width Width Velocity <br />(ft) LT. RT. 1ft/see) <br /> <br />100-Year Flood.ay l' Rise <br />Floodway Floodway Flood.ay* Floodway <br />Water Surf. Top Width Width Velocity <br />ElevatIon 1ft) LT. RT. 1ft/see) <br /> <br />1 OO~Year <br />DI scharge <br />cfs <br /> <br />1,370 <br />1,190 <br /> <br />630 <br />780 <br /> <br />725 <br /> <br />830 <br /> <br />780 <br />710 <br />915 <br />820 <br />825 <br />760 <br />760 <br />880 <br /> <br />940 <br /> <br />620 <br />780 <br />750 <br />740 <br />570 <br />470 <br /> <br />550 <br />335 <br />190 <br />290 <br />315 <br />375 <br />340 <br /> <br />305 <br /> <br />435 <br />460 <br />480 <br />410 <br />450 <br />480 <br /> <br />515 <br /> <br />410 <br />460 <br /> <br />450 <br /> <br />470 <br /> <br />330 <br /> <br />350 <br /> <br />* As measured from design channel centerline, looking in the downstream direction. <br /> <br />2,700 <br />2,700 <br />2,700 <br /> <br />5347.4 <br />5353.7 <br />59.0 <br />61 .6 <br />62.8 <br />65.2 <br />68.8 <br />70.8 <br /> <br />10 <br />2 <br />7 <br /> <br />5347.4 <br />5353.5 <br />58.9 <br /> <br />500 <br /> <br />305 <br />80 <br />15 <br />90 <br />280 <br />240 <br /> <br />260 <br />290 <br />200 <br />180 <br /> <br />155 <br /> <br />155 <br /> <br />50 <br />30 <br />110 <br />275 <br />225 <br />95 <br />100 <br />45 <br />145 <br />260 <br />300 <br />255 <br />295 <br />330 <br />365 <br />380 <br />410 <br />425 <br />440 <br />310 <br />290 <br /> <br />550 <br />310 <br />190 <br />290 <br />295 <br />360 <br /> <br />240 <br /> <br />275 <br />340 <br />365 <br />375 <br />325 <br /> <br />360 <br /> <br />385 <br /> <br />410 <br /> <br />410 <br />450 <br /> <br />420 <br /> <br />375 <br /> <br />255 <br /> <br />320 <br /> <br />500 <br />280 <br />80 <br />15 <br /> <br />280 <br /> <br />240 <br />260 <br />230 <br />170 <br />150 <br />130 <br />130 <br />115 <br />70 <br />30 <br />50 <br />25 <br />30 <br /> <br />75 <br /> <br />110 <br />275 <br />225 <br />80 <br />o <br /> <br />IV-13 <br /> <br />50 <br /> <br />10 <br /> <br />2,700 <br />2,700 <br />2,700 <br /> <br />2,700 <br /> <br />2,700 <br /> <br />2,700 <br />2,100 <br /> <br />70.7 <br /> <br />72.8 <br /> <br />4 <br /> <br />61.8 <br />63.1 <br />65.7 <br />69.0 <br /> <br />150 <br /> <br />150 <br />30 <br />50 <br />25 <br />30 <br />20 <br />60 <br /> <br />10 <br />5 <br />8 <br />5 <br />3 <br /> <br />5347.4 <br /> <br />5353.8 <br /> <br />58.9 <br /> <br />62.1 <br /> <br />63.5 <br /> <br />15 <br />110 <br />195 <br />225 <br />195 <br />230 <br />290 <br />340 <br />380 <br />400 <br /> <br />395 <br />345 <br /> <br />20 <br />60 <br /> <br />235 <br />260 <br /> <br />30 <br /> <br />4 <br />8 <br />5 <br />3 <br /> <br />2,700 <br /> <br />72.9 <br />73.2 <br />74.0 <br />76.2 <br />76.2 <br /> <br />3 <br /> <br />6 <br />8 <br />8 <br /> <br />70.8 <br />71.5 <br /> <br />9 <br />7 <br />8 <br />6 <br /> <br />65.7 <br />69.2 <br />71.0 <br /> <br />71.7 <br /> <br />9 <br /> <br />8 <br /> <br />9 <br />6 <br /> <br />4 <br /> <br />5 <br /> <br />5 <br />12 <br />5 <br /> <br />3 <br /> <br />7 <br />4 <br />5 <br />9 <br /> <br />5 <br />6 <br /> <br />Note: Floodway descriptions of "1/2' Rise" and "1' Rise" represent maximum increases in the Energy Grade Line Elevation and not necessarily the water <br />surface elevation. <br /> <br />2,700 <br />2,700 <br />2,700 <br /> <br />2,700 <br /> <br />2,700 <br />2,600 <br />2,600 <br />2,600 <br /> <br />77.2 <br /> <br />79.3 <br />79.8 <br />79.2 <br />85.0 <br />85.0 <br /> <br />2,600 <br /> <br />2,600 <br /> <br />9 <br /> <br />4 <br />5 <br /> <br />73.3 <br /> <br />73.2 <br /> <br />5 <br /> <br />73.6 <br /> <br />10 <br /> <br />74.3 <br />76.8 <br />76.8 <br />77.6 <br />79.6 <br />79.8 <br />79.9 <br />84.8 <br />84.9 <br /> <br />4 <br />2 <br />7 <br />5 <br />5 <br />11 <br /> <br />2 <br /> <br />5 <br /> <br />3 <br /> <br />73.3 <br /> <br />5 <br /> <br />73.2 <br />73.6 <br />74.5 <br />76.6 <br /> <br />5 <br />10 <br />3 <br /> <br />2 <br /> <br />76.8 <br /> <br />7 <br />4 <br />6 <br />9 <br />5 <br />5 <br /> <br />77.6 <br />79.6 <br /> <br />79.9 <br /> <br />79.9 <br /> <br />84.8 <br />84.9 <br />