Maricopa County Hydrology Procedure

by George V. Sabol, George V. Sabol Consulting Engineers, Inc, United States,
Joe Rumann, George V. Sabol Consulting Engineers, Inc, United States,
Davar Khalili, George V. Sabol Consulting Engineers, Inc, United States,
Steve Waters, George V. Sabol Consulting Engineers, Inc, United States,



Document Type: Proceeding Paper

Part of: Watershed Planning and Analysis in Action

Abstract: The Flood Control District of Maricopa County has developed a procedure to be used for flood hydrology in Maricopa County, Arizona, and the Flood Control District has prepared a Hydrologic Design Manual that defines and illustrates the use of the procedures. The HEC-1 Flood Hydrology Program has been selected as the computation program for the physically-based, rainfall-runoff model. The manual provides guidance in the selection and development of input to the HEC-1 program so that the desired meteorologic and hydrologic characteristics can be incorporated into the watershed model. The major components of the procedure and manual include design rainfall criteria, rainfall loss methods, and unit hydrograph procedures. Other components of the manual provide guidance regarding routing and general applications of the method. Numerous examples are provided that illustrate all of the procedures. A separate Documentation Manual contains research results, test and verification results, and key references that support the information in the manual.

Subject Headings: Hydrology | Floods | Hydrologic models | Rainfall-runoff relationships | Model tests | Hydraulic design | Hydrographs | Arizona | North America | United States

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