FLOOD06162

• Designation Number: 183
• County: Douglas
• Community: Unincorporated Douglas County
• Stream Name: Dad Clark Gulch
• Basin: South Platte
• Title: Flood Hazard Area Delineation - Dad Clark Gulch, Douglas County, Colorado
• Date: 5/1/1981
• Designation Date: 4/1/1982
• Floodplain - Doc Type: Floodplain Report/Masterplan

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FLOODING SOURCE FLOOD PLAIN DATA FLOODWAY DATAl)
CROSS STATION Q100 STREAM 10o-YR 10o-YR FLOODWAY WIDTH (F1)l2l FLOODWAY
IDENTIFICATION BED ELEV, FLOOD ELEV, u ELEV.
SECTION (F1) (CFS) (MSl) (MSL) WIDTH (F1) L BANK R, BANK TOTAL (MSl)
.
Upstream Limit of Reach 1 110 380+00 941 5878.4 5881 .7 46.7
Downstream Limit of Reach 2 111 400+00 1780 5855.6 5859.1 74.4
(Confl uence With Reach 1 ) 112 404+00 777 5861 .0 5864.7 142.3 12.2 13 0.1 142.3 5864.7
113 407+24 777 5863.8 5867.5 50.2
114 408+36 777 5870.0 5872.7 50.4
115 410+00 777 5873.0 5875.8 129.2
Upstream Limit of Reach 2 116 414+00 777 5877.0 5881 .1 45.4
Downstream Limit of Reach 3 123 509+42 2768 5616.8 5620.9 383.3
(Confl uence With Reach 1 ) 124 512+65 937 5622.5 5624.5 132.8
, 125 516+00 937 5627.5 5629.4 108.1
126 516+76 937 5627.0 5630.2 144.5
127 519+00 937 5630.9 5634.1 78.7
128 520+43 937 5632.7 5636.0 68.3
129 523+00 937 5635.7 5640.4 49.5
130 525+50 937 5642.7 5646.1 42.4
131 528+00 937 5645.0 5650.0 30.9
132 529+80 937 5647.8 5652.6' 49.1
133 531+50 937 5650.7 5655.0 47.9
134 532+83 937 5652.7 5657.8 32.2
135 535+00 937 5661 .0 5664.0 58.5
136 537+00 937 5668.0 5673.3 39.2
137 538+60 937 5671 .0 5675.4 36.0
138 540+20 937 5674.0 5678.3 26.3
139 542+00 937 5677.0 5682.8 32.6
140 544+00 937 5684.0 5688.1 44.9
141 546+40 937 5687.0 5692.9 33.5
142 547+82 937 5690.0 5695.5 51.4
North Highlands Loop (Future) 143 549+40 937 5694.8 5700.4 31. 7

(1)

Floodway data are based on encroachment causing up to 0.5 ft. vertical rise in the 100-y:ar flood elevation.
Where floodway data are not given they shall be assumed to be identical to the fiood plaIn data.

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

(2)

REVISED 10-9-80

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

FLOOD PLAIN AND FLOODWAY REFERENCE DATA
DAD CLARK GULCH

CONT,

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TABLE 3
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