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<br /> TABLE 5 - FLOODPLAIN AND FLOODWAY REFERENCE DATA
<br /> DIRECT FLOW AREA 0054-2
<br /> Cross 100-Yr Stream 100- Yr Floodplain Floodway Widthl Controlli~g Floodway . Notes
<br /> Location Section Station Discharge Bed Elev. Flood Elev. Width Left Right Total Criteria Elev.
<br /> Number (cfs) (ms)) (ms!) (ft) (ft) (ft) (ft) (ms!)
<br />Confluence with South 700 0+25 300 5,030.0 5,033.4 172 161 11 172 a 5,033.4 Divided flow
<br />Platte River 702 3+37 285 5,032.4 5,034.8 152 25 37 62 b 5,034.8
<br /> 704 7+17 270 5,033.4 5,035.1 324 35 24 59 b 5,035.1
<br /> 705 10 +17 255 5,039.7 5,040.4 193 89 104 193 a 5,040.4
<br /> 706 10+89 255 5,043.1 5,044.0 173 163 10 173 a 5,044.0
<br /> 707 12+12 255 5,045.5 5,048.4 280 115 5 120 a 5,048.4
<br /> 708 13+52 250 5,049.3 5,050.1 411 144 117 261 c 5,050.1 Floodway encroachment limited to
<br /> defined channel banks
<br /> 709 16+60 240 5,053.5 5,053.8 398 130 16 146 a 5,053.8
<br /> 710 18+84 225 5,060.8 5,062.3 138 36 21 57 a 5,062.3
<br />Private Road 712 21 +09 215 5,065.3 5,066.4 103 73 5 78 a 5,066.4
<br /> 713 22+03 215 5,068.0 5,068.7 153 141 12 153 a 5,068.7
<br /> 714 25+54 205 5,071.0 5,071.7 535 67 103 170 c 5,072.1
<br /> 716 29+00 190 5,075.0 5,075.6 393 376 -91 285 a 5,075.6
<br /> 718 31+97 180 5,081.2 5,082.0 332 462 -205 257 a 5,082.0
<br />Lower Clear Creek 719 33+10 180 5,085.2 5,085.8 298 319 -21 298 a 5,085.8
<br />Canal
<br /> 720 36+06 165 5,094.0 5,094.7 325 10 92 102 a 5,094.7
<br /> 722 37+44 160 5,097.5 5,098.1 182 116 40 156 a 5,098.1
<br /> 724 38+67 155 5,103.4 5,102.7 171 81 90 171 a 5,102.7
<br />Riverdale Road 755 39+32 155 5,106.1 5,106.6 136 112 24 136 a 5,106.6
<br /> 760 39+58 155 5,104.3 5,106.8 196 52 55 107 b 5,106.8
<br />Colorado Agric. Canal 765 40+53 150 5,108.2 5,111.0 220 77 119 196 a 5,111.0
<br /> 770 41+40 145 5,108.7 5,111.2 152 40 112 152 c 5,111. 2 No encroachment; irrigation pond
<br /> 775 42+10 140 5,114.1 5,115.4 54 26 28 54 a 4,115.4
<br /> 780 44+84 130 5,127.7 5,129.0 53 39 14 53 a 5,129.0
<br /> 785 47 +64 115 5,141.2 5,141.9 102 33 42 75 a 5,141.9
<br /> 790 49+90 110 5,145.6 5,146.6 121 49 41 90 a 5,146.6
<br /> 795 52+46 100 5,155.3 5,156.1 77 40 37 77 a 5,156.1
<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 encroacl1ment.
<br />NOTE: Controlling criteria a and b apply to Adams County only.
<br />
<br />-23-
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