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<br /> BASE FLOOD
<br />FLOODING SOURCE FLOODW A Y WATER-SURFACE ELEVATION
<br /> (FEET NGVD)
<br /> SECTION MEAN
<br />CROSS SECTION D1STANCE1 WIDTH AREA VELOCITY REGULATORY WITHOUT WITH INCREASE
<br />(FEET) (SQUARE (FEET PER FLOODW A Y FLOODWAY
<br /> FEET) SECOND)
<br />Fourmile Canyon Creek
<br />A 201 349 336 0.6 5,163.6 5,163.6 5,163.6 0.0
<br />B 506 57 123 1.9 5,166.8 5,166.8 5,167.2 0.4
<br />C 1,386 22 36 4.5 5,176.0 5,176.0 5,176.1 0.1
<br />D 1,972 485 380 3.3 5,185.3 5,185.3 5,185.5 0.2
<br />E 2,716 392 549 2.3 5,195.1 5,195.1 5,195.2 0.1
<br />F 3,106 344 448 2.8 5,198.9 5,198.9 5,199.0 0.1
<br />G 3,673 206 325 3.9 5,204.8 5,204.8 5,204.9 0.1
<br />H 3,996 117 281 4.5 5,207.8 5,207.8 5,208.0 0.2
<br />I 4,612 142 358 3.5 5,213.6 5,213.6 5,213.6 0.0
<br />J 6,240 127 274 4.6 5,231.1 5,231.1 5,231.2 0.1
<br />K 8,551 191 366 3.4 5,253.0 5,253.0 5,253.2 0.2
<br />L 9,688 562 500 2.5 5,268.5 5,268.5 5,268.7 0.2
<br />M 10,232 48 176 7.2 5,275.9 5,275.9 5,276.3 0.4
<br />N 10,718 79 340 3.6 5,284.2 5,284.2 5,284.3 0.1
<br />0 11,036 70 150 8.2 5,286.0 5,286.0 5,286.0 0.0
<br />P 11,756 343 367 3.4 5,295.5 5,295.5 5,295.5 0.0
<br />Q 12,452 258 242 5.1 5,308.3 5,308.3 5,308.5 0.2
<br />R 13,767 91 293 4.2 5,323.3 5,323.3 5,323.5 0.2
<br />S 14,305 78 211 5.8 5,327.7 5,327.7 5,328.0 0.3
<br />T 14,961 102 171 7.2 5,341.2 5,341.2 5,341.2 0.0
<br />U 15,607 104 216 5.7 5,351.3 5,351.3 5,351.3 0.0
<br />V 16,303 61 153 9.0 5,363.4 5,363.4 5,363.4 0.0
<br />W 16,780 420 432 3.2 5,370.6 5,370.6 5,370.6 0.0
<br />X 17,376 150 277 4.9 5,382.0 5,382.0 5,382.0 0.0
<br />Y 17,868 215 560 2.4 5,394.3 5,394.3 5,394.7 0.4
<br />Z 18,817 234 375 3.6 5,407.3 5,407.3 5,407.6 0.3
<br />1 Feet Above Confluence with Boulder Creek RI:VISED TO
<br />
<br />
<br />FLOODWAY D€FFECTIVE MAR 2820
<br />
<br />FOURMILE CANYON CREEK
<br />
<br />~ I FEDERAL EMERGENCY MANAGEMENT AGENCY
<br />BOULDER COUNTY, CO
<br />E
<br />5 AND INCORPORATED AREAS
<br />
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