Val Vista Water Transmission Main Rehabilitation
Award of Merit
Owner/Developer City of Phoenix
General Contractor Kiewit Infrastructure West Co.
Lead Design Firm Wilson Engineers
Structural Engineer Dewberry
Construction Manager Brown and Caldwell
Subcontractors (Truncated) Ameron International; Arizona Materials’ Arizona Super Dumps; Cass Cura; Cell Crete; Contractors Landfill; Deans Welding; FCD Development; Endo Steel; Mainlining America
The $12.1-million Val Vista Water Transmission Main Rehabilitation project was performed on more than 6,000 linear ft of pre-stressed concrete cylinder pipe that delivers water to more than 60% of the population in the city of Phoenix. To mitigate service issues, work was executed during the low-peak period from November 2014 to April 2015. Rehabilitation of the pipeline was accomplished by slip-lining the transmission main. After two 20-ft segments of pipe were demolished to allow access to the interior of the pipeline, new steel pipe liners were inserted into the 90-in. concrete pipeline in a trenchless technique.