Maricopa County, Arizona – The White Tanks Flood Retarding Structure (FRS) No. 3 was an earthen-fill dam designed to impound stormwater runoff from the White Tank Mountains and release it through three outlets or over an emergency spillway. The dam is 1.45 miles in length and has a height of 29 feet, with a storage capacity of 2,575-acre feet. The U.S. Soil Conservation Service, now the Natural Resources Conservation Service (NRCS), was the federal sponsor. The Maricopa County Municipal Water Conservation District 1 and the U.S. Soil Conservation Service were cost share partners on this project. The project, located west of Jackrabbit Trail north of McDowell Road includes a segment north of the Missouri Avenue alignment.
DBA Construction, Inc. was responsible for construction of:
- Concrete emergency spillway drop structure
- Abutments (approximately 2,575 CY of concrete)
- Soil cement steps
- Grouting 24” corrugated metal pipe for drainage