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Project Name: Sun Valley Area Drainage Master Plan Update

90

Project Manager: Theresa Pinto
Contact by phone at (602) 506-8127 or by email

Project is in Supervisor District:

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  • District 2: False
  • District 3: False
  • District 4: True
  • District 5: False

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Project Type: Study

Project Description:

The Sun Valley ADMP Update will include significant coordination with the City of Buckeye, property owners and developers, the Arizona State Land Department and other stakeholders.  The recommended alternatives will be refined based on updated model results and include non-structural flood risk reduction measures. 

Most of the Sun Valley area is undeveloped; however, flood hazard mitigation alternatives and plans will allow the City of Buckeye and property owners to make better, more informed decisions about managing flood hazards and reducing flood risks.  Water conservation measures, including green infrastructure and other environmental issues, will be evaluated during the study. In addition, some of the alluvial fans will be evaluated to determine if they are inactive.  Inactive alluvial fans may result in updates to floodplain maps to reflect the existing flood hazards.

The initial Sun Valley ADMP was completed in December 2006 and included recommendations to construct large detention basins and walled levee corridors along 65 miles of washes.  The initial project cost was estimated to be $610M.  Benefits included regional flood control systems that could be used to drain downstream tributaries, reduce flood risks by removing the alluvial fan uncertainties and eliminate or significantly reduce the size of the floodplains.

The hydrology and hydraulics modeling started in February 2019 and were completed in 2020. Future work assignments will include stakeholder coordination and alternatives development.

Last Updated: 2/24/2021 11:53:01 AM


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