<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 /> TABLE 6 - FLOODPLAIN AND FLOODWAY REFERENCE DATA (Continued)
<br /> DIRECT FLOW AREA 0054-3
<br /> Cross 100- Yr Stream 100-Yr Floodplain Floodway Widthl Controlli:?g FIoodway Notes
<br /> Location Section Station Discharge Bed Elev. Flood Elev. Width Left Right Total Criteria Elev.
<br /> Number (cfs) (msJ) (msJ) (ft) (ft) (ft) (ft) (msI)
<br />Lower Clear Creek 1,370 11+10 360 5,080.0 5,081.2 222 149 73 222 a 5,081.2
<br />Canal 1,380 12+93 360 5,084.9 5,085.6 120 98 22 120 a 5,085.6
<br />Riverdale Road 1,390 13+25 360 5,089.0 5,089.9 193 164 29 193 a 5,089.9
<br /> 1,400 13+60 350 5,086.2 5,090.2 326 229 72 301 b 5,090.2
<br /> 1,410 15+00 340 5,088.3 5,090.2 156 113 43 156 a 5,090.2
<br /> 1,420 16+78 315 5,092.7 5,094.3 89 62 27 89 a 5,094.3
<br />Quebec Street 1,430 17+38 310 5,102.4 5,103.6 110 86 25 110 a 5,103.6
<br /> 1,440 17+75 305 5,097.4 5,104.1 235 102 92 194 b 5,104.1
<br /> 1,450 19+75 280 5,099.8 5,104.1 128 46 43 89 b 5,104.1
<br />Colorado Agric. Canal 1,460 21 +54 260 5,100.9 5,104.9 77 38 39 77 a 5,104.9
<br /> 1,470 22+94 250 5,105.9 5,108.1 51 20 25 45 a 5,108.1
<br /> 1,480 24+45 230 5,111.2 5,112.7 65 22 43 65 a 5,112.7
<br /> 1,490 26+29 205 5,115.2 5,116.8 108 49 55 104 a 5,116.8
<br /> 1,500 28+48 180 5,119.0 5,120.1 133 12 13 25 c 5,120.6
<br /> 1,510 30+16 170 5,122.1 5,123.7 101 60 23 83 b 5,123.7
<br /> 1,520 31+72 160 5,127.6 5,128.7 72 61 5 66 a 5,128.7
<br /> 1,530 33+46 145 5,132.0 5,134.3 25 12 13 25 a 5,134.3
<br /> 1,540 35+13 135 5,134.5 5,137.2 28 12 16 28 a 5,137.2
<br /> 1,550 38+18 115 5,138.3 5,141.0 24 15 9 24 a 5,141.0
<br /> 1,560 40+85 100 5,142.2 5.144.6 25 10 7 17 a 5,144.6
<br /> 1,570 42+13 85 5,144.5 5.146.6 24 14 10 24 a 5,146.6
<br />1. Floodway widths are measured from channel reference lines looking downstream.
<br />2. Controlling Criteria: (a) Velocities at floodway limits are equal to or greater than 2 feet per second.
<br /> (b) Depths are greater than 18".
<br /> (c) Water surface raised 1/2 ft. based on equal encroachment.
<br />NOTE: Controlling criteria a and b apply to Adams County only.
<br />
<br />-25-
<br />
|