White Tanks Flood Retarding Structure
Features & Highlights
- Over 1 million cubic yards of excavation
- 1,600 linear feet of new earth dam extensions
- New auxiliary spillway
The White Tanks Flood Retarding Structure (FRS) No. 4 rehabilitation project (White Tanks), constructed by Sundt/Rummel, A Joint Venture (SRJV), consisted of preconstruction and construction phase services to complete the rehabilitation of the existing FRS.
The Arizona Department of Water Resources (ADWR) classified White Tanks in Buckeye, AZ as the highest risk in the state for lack of performance during peak flooding events. To address the ground water table’s subsidence and maintain the probable maximum flood level protection, the White Tanks dam needed to be raised 2 feet. The primary function of this 6,000-foot-long, 25-foot-tall, 472,000,000-gallon storage capacity dam is to protect the Roosevelt Irrigation District’s canal from flooding. When flooded, large amounts of sediment clog the canal and prevent water from getting to farmers for crops and livestock.
Improvements to the existing 6,000-linear-foot earth dam included over a million cubic yards of excavation, installing 19,000 cubic yards of sand filter utilizing an upstream slope design, raising the existing embankment vertically to satisfy the probable maximum flood elevation, 1,600 linear feet of new earth dam extensions, reconstructing the principal outlet, constructing two new concrete drop structures, a new auxiliary spillway, 1,615 linear feet of concrete channel, flood pool grading, rock mulch, tall pot trees, native seeding, and aesthetic treatments on all of the concrete structures.
Awards & Accolades
2018 Marvin M. Black Excellence in Partnering Award-Associated General Contractors of America (AGC)
News & Media
AZ Joint Venture Project Earns National Award