Welcome to the Intermountain Section AWWA’s 2021 Annual Conference
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Thursday, October 10 • 10:15am - 10:45am
Southwest Aqueduct Reach 1 - Overcoming Design and Construction Challenges

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The Design and Construction of Southwest Aqueduct Reach 1 required close coordination between the owner, engineer and contractor to provide JVWCD with additional raw water supply capacity for the JVWTP and to provide redundancy to the Jordan Aqueduct. The project includes over 11,000 LF of 66-inch WSP pipe for the new Southwest Aqueduct and segments of new 78-inch to replace existing raw water supply pipelines. Due to the significant number of connections and modifications necessary at existing large diameter water infrastructure sites, a significant portion of the project was completed under a tight construction schedule during a winter shutdown of the Jordan Aqueduct. The pipeline was constructed in phases to allow portions of key water control facilities to be used prior to full project completion. The project includes four large control vault structures utilizing 66-inch diameter double offset butterfly valves, a 66-inch standpipe, two 36-inch plunger valves for flow control, and an impressed current cathodic protection system. Innovative modifications to the Jordan Narrows pump station were completed to avoid the need for a separate flow control facility and internal pipe header isolation was installed underneath the existing pump station to limit the required number of large valves needed for the project.

avatar for Cristina Nelson

Cristina Nelson

Project Manager, Bowen Collins & Associates
Bowen, Collins & Associates

Thursday October 10, 2019 10:15am - 10:45am MDT