Gross Reservoir
Expansion Project
Gross Reservoir
Expansion Project
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Environmental Commitments

Online Office Hours
Now that construction has begun, we will continue to offer online one-on-one appointments with our project representatives who can answer your questions about the Gross Reservoir Expansion Project. We invite you to search for an available time and book an online meeting here.
We look forward to speaking with you!
News
Gross Reservoir recreation opening Saturday, July 2
Boulder, Colo. — July 1, 2022 — Recreation at Gross Reservoir will reopen Saturday, July 2, after a two-week closure to recover a vehicle from the reservoir following a fatal accident at the construction site for the dam expansion project on June 18. Operations for...
Long-term recreation closure at Gross Reservoir
Boulder, Colo. — June 22, 2022 — Recreation at Gross Reservoir will remain closed for multiple weeks following the June 18 fatal accident at the Gross Reservoir Expansion Project where an engineer with six years of experience lost his life. This is essential as crews...
Gross Reservoir recreation closed until further notice
Boulder, Colo. — June 18, 2022— Emergency responders are working on an accident that took place overnight at the Gross Reservoir Expansion Project site, in which a construction haul vehicle veered off the road into the reservoir. First responders and other agencies...
News
Gross Reservoir recreation opening Saturday, July 2
Boulder, Colo. — July 1, 2022 — Recreation at Gross Reservoir will reopen Saturday, July 2, after a two-week closure to recover a vehicle from the reservoir following a fatal accident at the construction site for the dam expansion project on June 18. Operations for...
Long-term recreation closure at Gross Reservoir
Boulder, Colo. — June 22, 2022 — Recreation at Gross Reservoir will remain closed for multiple weeks following the June 18 fatal accident at the Gross Reservoir Expansion Project where an engineer with six years of experience lost his life. This is essential as crews...
Gross Reservoir recreation closed until further notice
Boulder, Colo. — June 18, 2022— Emergency responders are working on an accident that took place overnight at the Gross Reservoir Expansion Project site, in which a construction haul vehicle veered off the road into the reservoir. First responders and other agencies...
May 2022 Recreation Update
May 26, 2022 - As a reminder, some recreation areas have closed or been relocated to ensure safety during the Gross Reservoir Expansion Project. The overall recreation experience will also be different throughout the project. Below are some of the changes and things...