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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TABLE III - 2 (CONT.)
SUB-BASIN CHARACTERISTICS
************.***********..**************************************************************************************************************************
SUB-BASIN AREA AREA LENGTH LENGTH TO EXISTING FUTURE BASIN SLOPE PERVIOUS IMPERVIOUS INITIAL FINAL DECAY
(AC. ) (SQ. HI.) (FT) CENTROID % % (FT/FT) RETENTION RETENTION INFILTRATION INFILTRATION RATE
(FT) IMPERVIOUS IMPERVIOUS (in/hr) (in/hr)
********************************************************.**.***********~****************************************************************************
925 102.8 0.161 3300 1500 2 63.0 0.023 0.35 0.1 3.000 0.50 0.0018
926 55.8 0.087 2800 1300 2 55.5 0.019 0.35 0.1 3.000 0.50 0.0018
927 47.0 0.073 2300 750 3 59.a 0.026 0.35 0.1 3.000 0.50 0.0018
928 135.8 0.212 4100 2000 2 35.0 0.020 0.35 0.1 3.225 0.52 0.0018
929 73.8 0.115 3900 2050 2 35.0 0.015 0.35 0.1 3.000 0.50 0.0018
930 58.2 0.091 3000 1100 2 54.5 0.021 0.35 0.1 3.000 0.50 0.0018
931 100.8 0.158 3000 1300 3 65.0 0.018 0.35 0.1 3.000 0.50 0.0018
932 64.6 0.101 2100 900 2 55.5 0.019 0.35 0.1 3.000 0.50 0.0018
933 74.6 0.117 3500 1600 2 62.0 0.023 0.35 0.1 3.000 0.50 0.0018
*************************************
TOTAL 4578.8 7.154
DIRECT FLOW
D1 163.1 0.255 3400 1500 2 35.0 0.015 0.35 0.1 3.450 0.53 0.0018
D2 42.7 0.067 2000 700 2 38.0 0.013 0.35 0.1 3.570 0.54 0.0018
03 39.7 0.062 2100 800 2 34.3 0.019 0.35 0.1 3.530 0.54 0.0018
05 118.3 0.185 3350 1400 17 33.5 0.022 0.35 0.1 3.750 0.55 0.0018
D6 69.0 0.108 3550 1400 7 33.5 0.031 0.35 0.1 3.750 0.55 0.0018
D7 63.9 0.100 3100 1050 2 33.5 0.033 0.35 0.1 3.825 0.55 0.0018
08 85.5 0.134 7000 4000 2 35.0 0.020 0.35 0.1 3.225 0.52 0.0018
09 52.3 0.082 1900 1250 2 26.0 0.014 0.35 0.1 3.000 0.50 0.0018
D10 120.2 0.188 3500 1500 2 36.5 0.014 0.35 0.1 3.000 0.50 0.0018
011 153.4 0.240 3800 1300 2 36.5 0.020 0.35 0.1 3.000 0.50 0.0018
012 74.6 0.117 2200 900 2 43.3 0.010 0.35 0.1 3.000 0.50 0.0018
013 195.9 0.306 5700 3700 3 29.0 0.008 0.35 0.1 3.000 0.50 0.0018
014 95.2 0.149 3400 1600 2 33.0 0.022 0.35 0.1 3.000 0.50 0.0018
D15 120.6 0.188 4000 2000 6 59.0 0.014 0.35 0.1 3.000 0.50 0.0018
016 90.7 0.142 3600 1450 2 35.0 0.025 0.35 0.1 3.000 0.50 0.0018
017 106.5 0.166 3300 1250 15 38.0 0.021 0.35 0.1 3.000 0.50 0.0018
018 115.6 0.181 3000 1700 2 5.0 0.012 0.35 0.1 3.000 0.50 0.0018
019 33.6 0.053 1900 1000 2 33.5 0.011 0.35 0.1 3.450 0.53 0.0018
D20 82 0.128 3200 1500 2 39.0 0.013 0.35 0.1 3.000 0.50 0.0018
D21 92.8 0.145 3500 1750 2 44.0 0.008 0.35 0.1 3.000 0.50 0.0018
******************
TOTAL 1915.6 2.993