Submitted by Kiewit Western Co.

Using trenchless technology, this rehab of an existing water main added a steel-can slip lining to give more than 50 years of additional life to the deteriorating pipe, with minimal impact to surrounding communities. The pipeline is approximately 14 mi long and supplies 220 million gallons a day of potable water to Phoenix and Mesa. To date, 31,000 ft has been successfully re-lined.

The team was able to avoid existing utilities by using slide rail shoring to keep the necessary excavation sizes to a minimum and allow flexibility to shift a portal location when necessary.

Community input influenced many decisions, from removing medians to repaving additional lanes in front of businesses. The project team also implemented daily traffic control phasing and maximized work during off-peak hours.

Owner: City of Phoenix
General Contractor: Kiewit Western Co.
Construction Manager: Brown and Caldwell
Engineers: Dibble Engineering; Integra Engineering; Wilson Engineers
Subcontractors: L.H. Woods & Sons; Vadnais Corp.; H.G. Steel; Buesing Corp.; Performance 53 Pipeline; Recon; Desert Classic Landscaping; L&L Asphalt; Ludvik Electric