Gross Reservoir Expansion Project

Recreation During Construction

 

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 to expect.

  • Non-motorized boat launching will only take place from the North Shore. Osprey Point is closed to the public for the duration of the project.
  • Parking at the North Shore has been expanded and the new parking lot has a one-way traffic flow.
  • Denver Water plans to have a shuttle available to take boaters from the North Shore parking lot to the shoreline. The current schedule of operations for the shuttle is Thursday through Monday from 8 a.m. to 6 p.m. Denver Water will evaluate the shuttle operations throughout the season and make adjustments.
  • The on-water recreation experience will be different than in past years. The water level is lower and some areas of the reservoir will not be publicly accessible to ensure safety.
  • Do not park on the side of the roads or on private property. Visitors who park illegally in the parking lot or along the road are subject to parking tickets and having their vehicle towed.

Please observe all posted speed limits, signage and instructions from all on-site personnel.

Check the Google My Map, embedded below, for information on access and construction activities.

 

The south side of Gross Reservoir is closed to the public for the duration of the project. This map shows those closure areas, including areas on the water.

Click on the map to enlarge

 

We encourage visitors to the reservoir to check the Google My Map, embedded below, for information on access and construction activities.

Directions to Gross Reservoir:

From the Denver metro area:

  • Take Highway 93 north from Golden to Highway 72.
  • Turn left (west) on Highway 72 toward Pinecliffe.
  • Turn right onto Gross Dam Road/County Road 77. The intersection has the CCCIA Hall and United Power offices.
  • Turn right when you arrive at a T-intersection.
  • Travel to the North Shore parking lot for all recreation access. Note: The south side of Gross Reservoir is closed to the public.

From Boulder:

  • Take Flagstaff Road west.
  • Turn left onto Gross Dam Road.
  • All recreation traffic should park at the North Shore parking lot. Note: The south side of Gross Reservoir is closed to the public.

 

 

Latest News / Blog

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...

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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...

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