Project Details

Hassayampa River Re-Mapping (Jackrabbit Wash to Gila River)

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Project Contact: Jennifer Lynch
Region: SW
District: 5 - Steve Gallardo
Phase: Floodplain Delineation

The Flood Control District of Maricopa County (FCD) is conducting a study which will result in revisions to the Hassayampa River floodplain/floodway in Unincorporated Maricopa County and the City of Buckeye. The floodplain to be studied is approximately 14.5 linear miles from Jackrabbit Wash to the confluence with the Gila River. For an exhibit that shows the location go to and look for Hassayampa River.

The study is within Township 2 North, Range 5 West, Sections 22, 23, 26, 27, and 34, Township 1 North, Range 5 West, Sections 3, 10, 15, 22, 23, 26, 27, and 35, Township 1 South, Range 5 West, Sections 1, 2, 11, 12, 13, 14, 23, 24, 25, and 26, and Township 1 South, Range 4 West, Sections 7, 17, 18, 19, 20, and 30.  


The District conducts floodplain and floodway delineation studies to identify and refine areas that are subject to inundation by a 100-year flood (one percent chance of occurring in any year).


Once the study is complete, impacted property owners will be notified and be able to review the results on line. The results will be used by the City of Buckeye and Unincorporated Maricopa County to regulate development within the floodplain.  The study will be submitted to the Federal Emergency Management Agency (FEMA) for updating FEMA’s Flood Insurance Rate Maps which are used to determine federal flood insurance requirements and rates.


This announcement is intended to inform all interested persons and communities of the commencement of this study, to provide citizens with an opportunity to bring any relevant technical information to the attention of the FCD. This information will be considered during the course of the study. Your comments should be addressed to Ms. Jennifer Lynch at the Flood Control District of Maricopa County, 2801 West Durango Street, Phoenix, AZ 85009,


Available Documents

Document Name Type Size
Project Map pdf 2.37 MB

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