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Brown and Caldwell to manage $200M water resiliency program in Phoenix

WALNUT CREEK, Calif., May 07, 2019 — Brown and Caldwell, a leading environmental engineering and construction firm, has been selected by the City of Phoenix, Arizona, to provide program management services for the City’s Zone 3D and 4A Improvements Program.

The City conducted a study on how to supplement water supply should restrictions be placed on Colorado River water delivered through the Central Arizona Project (CAP). The results indicated a need for additional water supply in northern areas served by the Union Hills and Lake Pleasant Water Treatment Plants (WTPs). Several alternatives were evaluated with major upgrades to the water system recommended allowing water to be moved from the 24th Street and Deer Valley WTPs to north Phoenix to supplement and provide water system resiliency.

The $200 million program encompasses design and construction of four, 60 million gallons per day booster pump stations, pressure reducing valve stations, and approximately 12 miles of conveyance pipelines to supplement the existing water delivery system. Managing design and construction activities to maintain existing plant and distribution system operations are considered vital to the program’s success.

The program is being delivered using the Construction Manager at Risk (CMAR) delivery method to provide an integrated team with an emphasis on collaboration from project initiation through final construction. The extensive program team includes City staff, seven engineering design firms, and six CMAR contractors. As program manager leading the design and construction, Brown and Caldwell’s duties include coordination, organization, providing technical assistance, and overseeing the implementation to ensure the program is completed successfully.

"This is a very important and exciting program for Phoenix which we are thrilled to manage,” said Brown and Caldwell Program Manager Tracy Moraca. "Having completed multiple program management projects for the City over the past two decades, our in-depth knowledge of the area’s infrastructure puts us in an ideal position to deliver water resiliency for north Phoenix.”

Following a 16-month design phase, construction activities are expected to commence in summer 2020 with the upgraded system fully operational by December 2022.

Media contact: Cameron McWilliam | 303.968.2055 |


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