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 Hwy. 72 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

Project related activities

April 18, 2019 – Denver Water will have contractor crews at the intersection of State Highway 72 and Gross Dam Road on Friday, April 19 performing geotechnical investigation activities. This work is necessary for the design of safety related roadway improvements for...

A statement from the CEO/Manager

Below is a statement from Denver Water CEO/Manager Jim Lochhead regarding the April 11 complaint filed in District Court on the zoned land use exemption: Our commitment to the community has been demonstrated from the beginning when we intentionally and explicitly...

Collaboration works for 21st century Denver Water

Colorado Central Magazine - April 1, 2019 - "Commissioners from Grand County showed up at a noisy Boulder County commissioners’ hearing on a West Slope-to-East Slope transmountain water diversion project – to testify on behalf of the project." Read the full story...