|
<br />T
<br />A
<br />8
<br />L
<br />E
<br />3
<br />
<br /> FLOODING SOURCE FLOODWA Y BASE FLOOD
<br /> WATER SURFACE ELEVATION
<br /> SECTION MEAN REGULATORY I WITHOUT I WITH I INCREASE
<br /> CROSS SECTION DISTANCE 1 WIDTH AREA VELOCITY FlOODWAY FLOOOWA Y
<br /> (fEET) (SQUARE (FEET PER
<br /> fEEl) SECOND) (FEET NGVD)
<br /> Nissen Reservoir
<br /> Channel
<br /> A 2,640 155 603 6.3 5,239.2 5,239.2 5,239.2 0.0
<br /> B 3,072 105 262 7.1 5,242.7 5,242.7 5,242.9 0.2
<br /> C 3,372 94 682 2.7 5,245.0 5,245.0 5,245.4 0.4
<br /> D 3,645 88 356 5.2 5,247.0 5,247.0 5,247.0 0.0
<br /> E 3,775 92 551 3.4 5,248.4 5,248.4 5,249.2 0.8
<br /> F 4,720 249 306 6.1 5,260.1 5,260.1 5,260.6 0.5
<br /> G 5,142 74 331 5.6 5,264.7 5,264.7 5,265.2 0.5
<br /> H 5,432 75 294 6.3 5,266.7 5,266.7 5,267.1 0.4
<br /> I 6,140 216 . 525 3.5 5,272.4 5,272.4 5,273.2 0.8
<br /> J 6.655 203 281 6.6 5,278.0 5,278.0 5,278.1 0.1
<br /> K 7,160 187 485 3.8 5,282.7 5,282.7 5,283.6 . 0.9
<br /> L 7,660 102 250 7.4 5,287.0 5,287.0 5,287.4 0.4
<br /> M 8,080 179 433 4.3 5,290.0 5,290.0 5,290.8 0.8
<br /> N 9,850 15 53 10.6 5,301.1 5,301.1 5,301.1 0.0
<br />I 0 .. . ... 9;-9411 38 .-... 153 .. 7;2 5,303.8 5,303;8 5,303.8 .... ... .0.0
<br /> P 10,420 36 93 11. 7 5,303.8 5,303.8 5,303.8. 0.0
<br /> Q 10,950 43 120 9.2 5,305.4 5,305.4 5,305.6 0.2
<br /> R 11,070 43 71 7.4 5,307.9 5,307.9 5,307.9 0.0
<br /> S 11,500 78 84 6.6 5,311.2 5,311.2 5,311.2 0.0
<br /> T 12,250 131 95 4.9 5,319.6 5,319.6 5.319.6 0.0
<br /> U 12,450 60 72 7.2 5,323.3 5,323.3 5,323.3. 0.0
<br /> V 13,150 150 138 3.5 5,328.8 5,328.8 5,328.8 0.0
<br /> W 13,270 72 77 5.9 5,338.2 5,338.2 5,338.2 0.0 .
<br />
<br />lFeet Above Confluence with Big Dry Creek
<br />
<br />FEDERAL EMERGENCY MANAGEMENT AGENCY
<br />
<br />FLOODWAY DATA
<br />
<br />CITY OF BROOMFIELD, CO
<br />
<br />(ADAMS, BOULDER, AND JEFFERSON
<br />COUNTI~S)
<br />
<br />NISSEN RESERVOIR CHANNEL
<br />
|