FLOOD10116

• County: Douglas
• Community: Douglas County
• Stream Name: Dad Clark Gulch
• Basin: South Platte
• Title: FHAD - Dad Clark Gulch
• Date: 2/1/1980
• Prepared For: Douglas County
• Prepared By: UDFCD
• Floodplain - Doc Type: Floodplain Report/Masterplan

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FLOODING SOURCE FLOOD PLAIN DATA FLOODWAY DATA(!)
CROSS STATION Q100 STREAM 100- YR 100- YR FLOODWAY WIDTH (FT)t2l FLOODWAY
IDENTIFICATION BED ELEV. FLOOD ELEV, E LEV.
SECTION (FT) (CFS) (MSLj (MSLj WI DTH (FT) L BANK R. BANK TOTAL (MSl)
Downstream Limit of Reach 1 , 1 101+23 4496 5481 .5 5489.0 167.4
(Upstream End of McLellan Res.) 2 101+73 4496 5482.0 5494.1 571 .1 208.2 31 .7 239.9 5494.2
Co. Line Road (Existing C-470) 3 102+83 4496 5483.0 5496.2 891 .0 662.7 6.1 668.8 5496.4
4 103+33 4496 5483.5 5496.0 724.1 26.6 95.5 121 .1 5496.2
5 106+40 4367 5484.8 5495.9 85.5
6 110+00 4367 5484.8 5497.7 85.1
7 113+00 4367 5484.8 5498.9 65.0
8 117+00 4367 5492.8 5501 .1 80.8
9 119+37 4367 5496.8 5505.2 68.0
10 119+87 4367 5496.9 5508.2 129.9
Highl ine Canal Crossing 11 120+10 4367 5498.0 5508.7 79.9
1 2 120+60 4367 5499.8 5508.4 63.6
Centennial Pkwy. ( Future C-470) 1 3 124+35 4367 5506.0 5511.5 152.4
14 128+00 4515 5508.7 5515.1 86.9
Canal Road (Future) 15 133+00 4515 5511 .6 5521 .7 55.5
1 6 136+00 4515 5512.7 5525.3 116.2
17 139+00 4515 5516.8 5526.4 72.2
18 142+00 4515 5520.8 "530.1 105.6
konfl uence l'lith Reach 6 19 144+75 4515 5522.8 5531 .9 112.6 28.3 53.8 82.1 5531 .8
20 147+00 3118 5527.9 5534.6 163.7
21 149+00 3118 5528.7 5536.9 151. 8
22 154+00 3118 5532.8 5540.4 79.6
23 156+68 3118 5535.8 5544.3 134.8
~roadway (Future Extension) 24 159+00 3118 5538.7 5546.1 90.3
25 163+40 3118 5542.0 5550.2 115.9
26 167+00 3118 5547.8 5556.2 72.2
~onfl uence With Reach 5 27 170+40 3118 5552.8 5560.2 97.2
28 174+20 3118 5558.8 5564.2 93.2
29 178+00 3118 5558.8 5567.7 59.9
30 180+54 3118 5562.8 5570.8 113.2
31 183+00 3118 5568.0 5573.3 73.7
32 186+00 3118 5573.8 5580.8 54.2
33 188+00 3118 5578.8 5584.2 187.1
34 191 [phone] .8 5587.0 86.3
35 195+00 3118 5590.0 5594.2 154.2
36 196+80 3118 5593.8 5597.4 161 .9
37 198+ 15 3118 5592.0 5599.4 241 .2

(1) Floodway data are based on encroachment causing up to 0.5 ft. vertical rise in the 100-year flood elevation.
Where floodway data are not given they shall be assumed to be identical to the flood plain data.

(2) Left and right distances are measured from the center of the flowline of the channel looking downstream.

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URBAN DRAINAGE AND FLOOD CONTROL DISTRICT
FLOOD HAZARD AREA DELINEATION
DOUGLAS COUNTY

FLOOD PLAIN AND FLOODWAY REFERENCE DATA

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DAD CLARK GULCH

TABLE 3
SHEET A