Gross Reservoir Expansion Project

It takes a long time to build a dam 471 feet high. A lot of other preparatory work is required such as quarrying and preparing the existing dam and foundation for the new dam.

The first planned work supporting the project consists of geotechnical drilling (summer 2018) and exploratory work in the Osprey Point Quarry starting after the reservoir is closed to boating for the season in October 2018. Next up, starting as early as 2019, is site development work and road improvements to the roads accessing Gross Dam. Principally, Denver Water is evaluating improvements and/or traffic control options for the intersection at SH72 and Gross Dam Road, and to Gross Dam Road itself.

Denver Water is committed to working closely with residents to ensure safety and open communication throughout construction.

Latest News / Blog

Surveyors in the field

You may have noticed surveyors taking readings on Gross Dam Road from the intersection of Highway 72 to the right abutment of Gross Dam. This work – scheduled to be completed by the end of this month – is part of our ongoing efforts to improve safety for all who drive...

Thank you tour participants!

Our thanks to all who joined us for a tour of the Gross Reservoir Expansion Project on Oct. 5. Staff from Sen. Gardner and Sen. Bennet’s offices, representatives from Denver Water distributors and the South Metro Chamber of Commerce, among others, joined...

Thank you attendees!

On Saturday, September 29 Denver Water hosted the third community cookout event. We want to thank those who stopped by to learn more about the Gross Reservoir Expansion Project and spent time at the yurt. The public information yurt remains open three days each week...