Buckeye No. 1 Flood Retarding Structure
Rehabilitation Fact Sheet
- Flood Control District of Maricopa County
- Agua Fria-New River Natural Resource Conservation District
- Buckeye Valley Natural Resource Conservation District
Project Location: Western Maricopa County, Arizona
Authorization: Watershed Protection and Flood Prevention Act, Public Law 83-566, as amended, and Public Law 106-472, Small Watershed Rehabilitation Amendments of 2000.
Estimated Construction Cost: $13 million
Projected Construction Start: January 2012
The Buckeye No. 1 Flood Retarding Structure (FRS) was originally constructed by the Soil Conservation Service (now the Natural Resources Conservation Service - NRCS) in 1975. It is currently operated and maintained by the Flood Control District of Maricopa County. The 7.1-mile-long earthen structure provides flood protection to a portion of the Town of Buckeye, including:
an estimated 800 current residents
300 residential and commercial properties
agricultural land, and related infrastructure. Additional residents and structures will be protected in the future as development continues to occur in the downstream benefitted area.
The FRS has developed safety deficiencies and inadequacies since the time of its construction related to embankment cracking and emergency spillway capacity. To address these concerns, the project Sponsors, with assistance from the NRCS, recently completed a Supplemental Watershed Plan and Environmental Assessment (Plan/EA). The Plan/EA calls for rehabilitation of the Buckeye No. 1 FRS to provide for continued flood protection while meeting current dam safety and performance standards. The total flood damage reduction benefit from the rehabilitation project is estimated at $36 million. NRCS is currently working with the sponsors to prepare engineering plans and designs for this high priority dam rehabilitation project.