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 (CONT .)
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I SUB-BASIN CHARACTERISTICS
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SUB-BASIN AREA AREA LENGTH LENGTH TO EXISTING FUTURE BASIN SLOPE PERVIOUS IMPERVIOUS INITIAL FINAL DECAY
I, (AC. ) (SQ. MI.) (FT) CENTROID % % (FTlFT) RETENTION RETENTION INFILTRATION INFILTRATION RATE
(FT) IMPERVIOUS IMPERVIOUS (in/hr) (in/hr)
...*************************************************************************************************************************************************
I SACK CREEK
801 36.4 0.057 2800 800 3 62.0 0.016 0.35 0.1 3.000 0.50 0.0018
802 18.2 0.028 1850 900 2 65.0 0.022 0.35 0.1 3.000 0.50 0.0018
803 33.8 0.053 1600 750 22 65.0 0.022 0.35 0.1 3.000 0.50 0.0018
I 804 92.3 0.144 3250 1100 7 56.0 0.012 0.35 0.1 3.000 0.50 0.0018
805 76.4 0.119 2900 1200 9 50.0 0.021 0.35 0.1 3.000 0.50 0.0018
806 72.0 0.113 2750 1200 2 65.0 0.019 0.35 0.1 3.000 0.50 0.0018
I 807 70.7 0.110 3450 1450 2 56.0 0.014 0.35 0.1 3.000 0.50 0.0018
808 62.2 0.097 2350 1100 2 47.0 0.014 0.35 0.1 3.000 0.50 0.0018
809 134.4 0.210 4000 1700 2 38.0 0.014 0.35 0.1 3.000 0.50 0.0018
I 810 156.6 0.245 3100 1500 2 56.0 0.016 0.35 0.1 3.000 0.50 0.0018
811 35.3 0.055 1500 500 2 47.0 0.020 0.35 0.1 3.000 0.50 0.0018
812 65.2 0.102 3500 2000 2 65.0 0.020 0.35 0.1 3.000 0.50 0.0018
813 48.2 0.075 2200 1000 2 65.0 0.015 0.35 0.1 3.000 0.50 0.0018
I ******************
TOTAL 901. 7 1. 409
I PREBLE CREEK
98 133 0.208 1800 800 2 57 0.036 0.35 0.1 3.000 0.50 0.0018
901 230.3 0.360 5050 1800 7 20.0 0.012 0.35 0.1 3.000 0.50 0.0018
902 91.1 0.142 2200 1150 9 35.0 0.014 0.35 0.1 3.000 0.50 0.0018
I 903 174.1 0.272 5450 1550 2 35.0 0.013 0.35 0.1 3.000 0.50 0.0018
904 212.3 0.332 7300 2800 2 41.0 0.015 0.35 0.1 3.000 0.50 0.0018
905 161. 8 0.253 4550 1650 5 35.0 0.019 0.35 0.1 3.000 0.50 0.0018
I 906 51.8 0.081 3250 1350 2 35.0 0.011 0.35 0.1 3.000 0.50 0.0018
907 95.6 0.149 3450 1450 2 35.0 0.014 0.35 0.1 3.000 0.50 0.0018
908 156.7 0.245 3200 900 12 68.0 0.019 0.35 0.1 3.000 0.50 0.0018
I 909 131. 8 0.206 3100 800 2 69.0 0.021 0.35 0.1 3.000 0.50 0.0018
910 123.4 0.193 2600 600 2 61.0 0.022 0.35 0.1 3.000 0.50 0.0018
911 77.9 0.122 3300 900 2 65.0 0.017 0.35 0.1 3.000 0.50 0.0018
912 135.1 0.211 4200 1550 2 51.0 0.015 0.35 0.1 3.000 0.50 0.0018
I 913 426.4 0.666 6200 2650 2 63.5 0.019 0.35 0.1 3.000 0.50 0.0018
914 255.7 0.400 6300 2600 3 57.5 0.018 0.35 0.1 3.000 0.50 0.0018
915 78.4 0.123 4500 2600 2 65.0 0.016 0.35 0.1 3.000 0.50 0.0018
I 916 189.9 0.297 5500 3150 2 50.0 0.017 0.35 0.1 3.000 0.50 0.0018
917 114.6 0.179 5250 2450 2 46.3 0.011 0.35 0.1 3.000 0.50 0.0018
918 169.0 0.264 5200 2700 3 39.5 0.024 0.35 0.1 3.225 0.52 0.0018
919 200.2 0.313 5800 3800 19 52.5 0.019 0.35 0.1 3.000 0.50 0.0018
I 920 86.4 0.135 4950 2000 2 51. 5 0.014 0.35 0.1 3.000 0.50 0.0018
921 154.9 0.242 4850 1200 2 59.0 0.015 0.35 0.1 3.000 0.50 0.0018
922 154.9 0.242 4700 800 2 66.5 0.023 0.35 0.1 3.000 0.50 0.0018
I 923 163.1 0.255 4700 2200 2 68.5 0.028 0.35 0.1 3.000 0.50 0.0018
924 97.0 0.152 2400 1000 3 57.0 0.031 0.35 0.1 3.000 0.50 0.0018