FLOOD04416

• Designation Number: 304
• County: Adams
• Community: Unincorporated Adams County
• Stream Name: Big Dry Creek, (ADCO), North area tributaries
• Basin: South Platte
• Title: Flood Hazard Area Delineation - Big Dry Creek, ADCO, North Area Tributaries
• Date: 7/1/1989
• Designation Date: 1/1/1990
• Floodplain - Doc Type: Floodplain Report/Masterplan

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I TABLE III 2
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I SUB-BASIN CHARACTERISTICS
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SUB-BASIN AREA AREA LENGTH LENGTH TO EXISTING FUTURE BASIN SLOPE PERVIOUS D1PERVIOUS INITIAL FINAL DECAY
I (AC. ) (SQ. HI.) (FT) CENTROID % % (FT/FT) RETENTION RETENTION INFILTRATION INFILTRATION RATE
(FT) D1PERVIOUS D1PERVIOUS (in/hr) (in/hr)
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I WADLEY SOUTH
101 54.8 0.086 3100 1000 2 34.8 0.012 0.35 0.1 3.000 0.50 0.0018
102 89.3 0.140 3500 1850 2 42.5 0.019 0.35 0.1 3.000 0.50 0.0018
103 106.4 0.166 3450 1700 18 35.0 0.019 0.35 0.1 3.000 0.50 0.0018
I 104 89.6 0.140 2000 900 2 32.0 0.030 0.35 0.1 3.000 0.50 0.0018
105 79.3 0.124 3300 800 12 18.5 0.034 0.35 0.1 3.000 0.50 0.0018
106 58.8 0.092 2500 1000 2 44.5 0.030 0.35 0.1 3.000 0.50 0.0018
I 107 88.7 0.139 2800 1500 2 70.8 0.034 0.35 0.1 3.000 0.50 0.0018
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TOTAL 566.9 0.886
I WADLEY NORTH
201 37.5 0.059 2100 1050 2 27.8 0.014 0.35 0.1 3.300 0.52 0.0018
202 82.3 0.129 3600 1400 2 49.1 0.014 0.35 0.1 3.000 0.50 0.0018
I 203 73.2 0.114 2850 1200 2 41.0 0.018 0.35 0.1 3.000 0.50 0.0018
204 118.6 0.185 3100 800 15 35.0 0.016 0.35 0.1 3.000 0.50 0.0018
205 97.9 0.153 2900 1000 26 33.5 0.026 0.35 0.1 3.000 0.50 0.0018
I 206 104.3 0.163 2300 1200 5 29.0 0.037 0.35 0.1 3.000 0.50 0.0018
207 32.3 0.050 1900 800 2 33.5 0.035 0.35 0.1 3.000 0.50 0.0018
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TOTAL 546.1 0.853
I SHORT RUN
301 34.4 0.054 1700 800 2 21.0 0.016 0.35 0.1 3.150 0.51 0.0018
I 302 133.7 0.209 3400 1150 2 32.8 0.024 0.35 0.1 3.450 0.53 0.0018
303 98.3 0.154 2500 850 8 35.0 0.016 0.35 0.1 3.075 0.51 0.0018
304 87.6 0.137 4650 1200 2 35.0 0.013 0.35 0.1 3.000 0.50 0.0018
I 305 159.3 0.249 3550 2000 3 45.5 0.032 0.35 0.1 3.000 0.50 0.0018
306 53.5 0.084 2300 900 15 35.0 0.022 0.35 0.1 3.000 0.50 0.0018
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TOTAL 566.8 0.886
I ELMS RUN
401 98.3 0.154 2450 1550 2 39.5 0.022 0.35 0.1 3.675 0.55 0.0018
I 402 42.0 0.066 1750 600 2 42.5 0.027 0.35 0.1 3.000 0.50 0.0018
403 66.3 0.104 3600 1200 3 60.0 0.038 0.35 0.1 3.000 0.50 0.0018
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TOTAL 206.6 0.323
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