Engineering and consulting firm MWH Global Inc. in Broomfield, has received an $11.9 million contract to design the Chimney Hollow Reservoir dam. MWH will design a 360-foot-tall dam, spillway and outlet works for the 90,000-acre-foot reservoir near Loveland on the west side of Carter Lake. It will be the largest dam built in Colorado in 50 years and provide water storage for growing communities in Northern Colorado, including Broomfield, Longmont, Loveland and Greeley.
The design for the project is expected to be completed in 2018, with construction completed in 2021. Northern Water began applying for permits in 2003, and the federal government approved the project in December 2014. Since then, Northern has been working on the rest of the required permits. All that is left is a federal wetlands permit, which officials expect to be approved this year.