Project Details

Wittmann and Surprise Area Floodplain Delineation Studies

Public Meetings

Currently there are no public meetings scheduled for this project.

Past Public Meetings

• 8/14/2012
• 7/20/2010
Project Contact: Richard Harris
Region: NW
District: 4 - Clint L. Hickman
Description:

Within the Wittmann Area Drainage Master Study boundary, the District has initiated a new floodplain delineation study. This study, Wittmann Phase V, is located entirely within an unincorporated area of northwestern Maricopa County and consists of approximately nine linear miles of washes. The general study area is bounded by U.S. Highway 60 to the northeast, Douglas Ranch Road to the northwest, and Patton Road to the south. This project will delineate approximately nine linear miles of limited detail (without floodway) Zone AE floodplains within the Trilby Wash and Iona Wash watersheds.

Status:

Data collection is complete for the Phase V study area. A public meeting on August 14, 2012 presented the preliminary results of the floodplain delineations in the Phase V study area. Three previous studies in the area -- Wittmann/Surprise FDS, Wittmann Phase III, and Wittmann Phase IV -- have concluded and the results are now considered regulatory.

Available Documents

Document Name Type Size
Study Boundary PDF 17.9 MB
Phase IV Map PDF 3.97 MB
Phase V - Distributary Flow Area (Northern half) PDF 16.34 MB
Phase V - Distributary Flow Area (Southern half) PDF 16.33 MB
Phase V - Iona Tributary 3 West PDF 11.70 MB
Phase V - Iona Tributary 3 West (Northern half) PDF 11.46 MB
Phase V - Iona Tributary 3 West (Southern half) PDF 12.04 MB
Phase V - Trilby Wash Tributaries PDF 333.3 KB
Public Meeting Announcement - August 2012 PDF 1.16 MB


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