MWH wins contract for Chimney Hollow Reservoir Project

14 September 2016


MWH, now part of global engineering, consulting and construction firm Stantec, is to provide detailed design services for a new dam project in Colorado, US.

The firm has been awarded a $11.9 million engineering services contract by the Municipal Subdistrict, Northern Colorado Water Conservancy District, for the Chimney Hollow Reservoir Project, a 90,000-acre-foot reservoir to be located near Loveland, Colo.  MWH will provide detailed design for a 360ft tall dam, spillway and outlet works. The Chimney Hollow Reservoir dam will be the largest dam built in Colorado in 50 years.

 The Chimney Hollow Reservoir will be located between Loveland and Longmont on the west side of Carter Lake, and will provide much-needed water storage to meet the needs of growing populations across Northern Colorado communities, including Broomfield, Longmont, Loveland, and  Greeley.  The Subdistrict estimates that its communities could see a water supply shortage of 64,000 acre feet, or approximately 29 billion gallons by 2030.

“With many of our employees based in northern Colorado, we are committed to long-term planning for future water needs that make an impact in our own backyard,” said Mario Finis, Waterpower and Dams business leader. “Our team of experts will work to deliver high-quality design services to support the Chimney Hollow Reservoir Project and accommodate the increasing population along the Front Range and their communities for years to come.”

 The design for the Chimney Hollow Reservoir Project is expected to be completed in 2018, with construction completed in 2021. The engineering services provided by MWH will include evaluating alternatives, final design, and support during bidding.



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