FLOOD10356

• Designation Number: 596
• County: Adams
• Stream Name: Comanche Creek, Wolf Creek
• Basin: South Platte
• Title: Floodplain Study - Comanche Creek and Wolf Creek - Technical Appendix
• Date: 5/1/2002
• Prepared By: McLaughlin Water Engineers, Ltd.
• Floodplain - Doc Type: Floodplain Report/Masterplan

Comanche Creek and Wolf Creek Floodplain Study
Adams County, Colorado
May, 2002

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TECHNICAL APPENDIX

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HYDROLOGY

Information provided in this section supplements the Hydrology Analysis section of the
~eport. Electronic files for model input and results. are included on the CD in the
following section. The following are provided in the main body of the report:

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Table J.,. Rainfall Frequency, Duration and Depth
Table 2 - Recommended Horton's Equation Parameters
Figure 1- 100-Year Hyetograph
Table 3 - Watershed Area Summary
Table 4 - Subbasin Parameters
Figure 2a - Hydrology Model RoutingFlow Diagram Comanche Creek
Figure 2b - Hydrology Model Routing Flow Diagram Wolf Creek
Figure 3 - 100- Year Peak Flow Comparison
Figure 4 - 100.Year Hydrographs
Table 5 - 100- Y ear Peak Flow Summary
Table 6 - Comanche Creek Flows for Detailed Hydraulic Model
Drainage Basin Drawings - DB-1 thru DB-6

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This section of the Appendix includes the following:

Regional Regression Equation Solutions
Rainfall Depths - 1, 2, 3 and 6 hour - 10, 50, 100 and 500- Year
Rainfall Distributions - 10, 50, 100, 500-Year
Basin Parameters
o Soil Maps, Adams, Arapahoe and Elbert Counties
o Land Use - Adams County Comprehensive Plan
o Percent Imperviousness by Land Use TableslFigures
CUHP Input Files, 10, 50, 100 and 500-year
UDSWM2 Input Files, 100-year and 10, 50 and 500-year
UDSWM2 Output Summaries, 10, 50, 100 and 500-year

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