Project Details

Palo Verde East Area Floodplain Delineation Study

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Project Contact: Richard Harris
Region: W
District: 4 - Clint L. Hickman
Phase: Floodplain Delineation

The Flood Control District of Maricopa County (District) is conducting the Palo Verde East Area Floodplain Delineation Study to update several Zone A (approximate) floodplains. The update will establish Base Flood Elevations (BFE’s) using improved mapping and updated hydrologic information.

The study is located within the western part of Maricopa County, and is generally bound by Encanto Boulevard on the north, Salome Highway on the south, 376th Avenue on the east, and 388th Avenue on the west.

Once the study is complete, impacted property owners will be notified and will be able to review the results online. The study results have been submitted to the Federal Emergency Management Agency (FEMA) for review and approval and will eventually be incorporated onto the Flood Insurance Rate Maps (FIRMs) for the area. FIRMS are special maps that show flood hazards for an area. They are produced as part of the County’s participation with the National Flood Insurance Program (NFIP). It typically takes approximately 6 months to a year for FEMA to approve a study. Incorporation onto the FIRMs can take up to 1 additional year after FEMA approval. In the interim, the study information will be used as best available data for regulation purposes.


The study documentation was submitted to FEMA in June 2017. FEMA Review is underway.

Available Documents

Document Name Type Size
Floodplain Delineation Study PDF 10 MB

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