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Person paddleboards at Gross Reservoir Recreation updates for 2023 season
As the Gross Reservoir Expansion Project continues, hiking, fishing and boating access will remain the same as the 2022 season. Below is a summary of access points and details for visitors to remember during the 2023 season.
May 11, 2023
Crews work on the side of a mountain Raising a dam starts by building a strong base
A look at some of the prep work needed before raising Gross Dam can begin.
May 11, 2023
Map showing work areas on Gross Dam Road. Gross Dam Road roadway improvements

Beginning the week of May 1 and continuing through the spring and summer, Denver Water’s contractor, Kiewit-Barnard, will begin ramping up activities related to the roadway safety improvements on Gross Dam Road. Activities will include tree removal, excavation, grading and restoration activities along multiple sections of the roadway. These roadway improvements are a long-term investment in the area and will improve safety for residents and visitors throughout this project and into the future.

May 5, 2023
Cover page of year-end report Gross Reservoir Expansion Project 2022 Year-end Report
The Gross Reservoir Expansion Project was hard at work in 2022. The final year-end report shared highlights of 2022 and shares upcoming activities in 2023.
April 25, 2023
Two men stand near large piece of concrete Slicing and dicing the top of Gross Dam
Over last summer and fall, construction crews from the Kiewit Barnard Joint Venture and Bluegrass Companies performed the challenging task of removing the dam’s 160-foot-wide spillway crest.
April 11, 2023
Grand County Learning By Doing: 2022 Annual Report
Learning By Doing (LBD) is a cooperative effort of water stakeholders from both sides of the Continental Divide whose goal is to maintain, and, where possible, restore or enhance the aquatic environment of the Upper Colorado, Fraser, and Williams Fork River Basins within the Cooperative Effort Area (CEA).
March 21, 2023
Group photo of CU Boulder class tour at Gross Reservoir Future engineers get chance of a lifetime visiting Gross Reservoir
Civil engineering students from the University of Colorado Boulder are getting a unique opportunity during their senior year.
March 17, 2023
Lane closure map for Sawmill Gulch area Gross Dam Road roadway improvements
Denver Water’s contractor Kiewit-Barnard, will begin work to grade and widen Gross Dam Road. Upcoming activities will include, but are not limited to, removal of tree and brush materials from work areas, roadway excavation and placement of fill materials.
March 13, 2023
Excavator moving material at Gross Reservoir Big project, big equipment
Needed for Gross Reservoir expansion: A crane to perch on dam, rise nearly 500 feet … and lift 200 tons.
March 6, 2023