Transmission MAIN Repair and Rehabilitation

Project Owner: City of Phoenix
Project Type: Job Order Contracting
Construction Dates: 10/23 to 10/28

Achen-Gardner is providing support services required to shut down, dewater, assess, and start-up large diameter water transmission mains (42” and larger) throughout the City of Phoenix. Our work must be completed within a fixed time frame by following a MOPO (Maintenance of Plant Operations) with strict attention to detail. We have completed four Job Orders (JOs) to date. 

This JOC features a Scenario 8 Transmission Main Assessment among other specialty tasks. This three-mile stretch of 48” pipe is to be repaired and rehabilitated for the main water line from Van Buren Street to Indian School Road along 67th Avenue. This requires dewatering, but residents will not lose access to water due the temporary shutdown. The pipe facilitates 1.5 million gallons of water.

Other transmission mains scheduled for repairs will similarly require dewatering. Much of these ductile iron and pre-stressed concrete cylinder pipes were installed in the 1980s. They collectively hold 13.9 million gallons of water across Phoenix. These pipes range in diameter from 30” to 54” and more than 16 miles of pipe will be improved.

Click here to view our 2019-2022 Water Main Inspection and Assessment JOC project.