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Gross Dam Road has reopened for public use

On March 15, staff reported Gross Dam Road impassable due to a rockfall (caused by a recent snowstorm) blocking the road in both directions near the Fisherman’s Parking Lot. As a result, the Fisherman’s Parking Lot was closed, and Gross Dam Road was closed between the T-intersection at Gross Reservoir Headquarters and Flagstaff Road.

June 14, 2024
What to expect recreating at Gross Reservoir in 2024

As the Gross Reservoir Expansion Project continues, you can still enjoy hiking, fishing and boating from the North Shore. Here’s some helpful information to make your visit as enjoyable as possible. 

Access and parking
During the Gross Reservoir Expansion Project, the North Shore parking lot at the intersection of Gross Dam and Flagstaff roads is the best place to park to access the reservoir. 

May 23, 2024
Gross Dam ready to go up
Final preparations underway at reservoir before dam raise begins.
April 8, 2024
2023 Year in Review
The Gross Reservoir Expansion Project was hard at work in 2023. The year-end report shares highlights from 2023 and upcoming activities in 2024.
March 28, 2024
Safety gets top billing for Gross Dam project
Years of independent review outlines temporary measures, construction schedule to minimize risk.
February 28, 2024
Practice makes perfect when putting concrete in place
Workers build test structure to perfect unique concrete for Gross Reservoir Expansion Project.
November 15, 2023
Upcoming onsite plant testing

In September, Kiewit Barnard will test the onsite crusher and batch plants that will make the concrete used to raise the dam. This includes quarrying rock, crushing rock and batching concrete – the process of mixing materials. Then, the concrete will be placed on a test structure near Osprey Point. This trial will allow Kiewit Barnard to fine-tune the operation before concrete placements to raise the dam beginning in 2024.

September 5, 2023
Interviews with residents west of Gross Reservoir

In April and May 2023, Denver Water worked with a third-party consultant to perform one-on-one interviews with residents on the west side of Gross Reservoir who are likely to be affected by tree removal activities, set to begin in 2025. The interviews offered residents an opportunity to share ideas, concerns and suggestions about tree removal timing, safety and other related issues.

The facilitator met with 15 residents on the west side of Gross Reservoir and provided Denver Water with a summary of findings and themes, including:

July 31, 2023
Gross Dam Road and Highway 72 new intersection alignment opening
Kiewit Barnard opened the new alignment for the Gross Dam Road and Highway 72 intersection.
June 27, 2023