Gross Reservoir Expansion Project

Gross Reservoir
Expansion Project

Experts discuss how the Gross Reservoir Expansion Project will have a net environmental benefit on water quality in Colorado.

Jeff Martin, Denver Water’s program manager on the Gross Reservoir Expansion Project sits for an interview about the project.

Environmental Commitments

Provide $2 million towards aquatic habitat improvements on the Upper Colorado River.

Environmental Commitments

Provide $1 million to the Upper Colorado River Wild and Scenic Management group to fund flow-related projects to protect the outstanding and remarkable values within segments of the Upper Colorado River.

Environmental Commitments

Provide $6 million to Grand County to use towards environmental projects, and continue to participate in the “Learning By Doing” collaborative effort, which has already resulted in tangible positive environmental impacts on the West Slope.

Environmental Commitments

Construct and maintain sediment pond on Berthoud Pass to keep the Fraser River bottom clean. Check out, “Good for drivers, bad for the Fraser River.”

Environmental Commitments

Restore a portion of Fraser Flats in Grand County. Check out, “Keep it cool: Good for the Fraser River and its trout.”

Environmental Commitments

Release water into Ranch Creek in response to high temperatures found through water temperature monitoring. Check out, “Searching for solutions to help trout keep their cool.”

Environmental Commitments

Monitor stream temperatures and water quality in Gross Reservoir, South Boulder Creek and the Fraser River Basin.

Environmental Commitments

Provide funding towards Colorado Parks and Wildlife’s cutthroat trout habitat projects to protect and restore native trout populations.

Environmental Commitments

Through a cooperative process, replace culverts on Fraser River, Cabin Creek and St. Louis Creek with Aquatic Organism Passage culverts that will enable free passage of fish and other aquatic organisms.

Environmental Commitments

Provide flushing flows in the Williams Fork and Fraser River basins.

Environmental Commitments

Provide more than 1,000 acre-feet of water in Grand County for environmental purposes.

Environmental Commitments

Complete a stream restoration project on South Boulder Creek in partnership with the City of Boulder.

Environmental Commitments

Create an environmental pool in Gross Reservoir that will be managed by the cities of Boulder and Lafayette to provide flows into South Boulder Creek during periods of low or no flows.

Environmental Commitments

Allow Grand County to store up to 2,500 AF of water in Williams Fork Reservoir for environmental purposes.

Environmental Commitments

Complete a stream restoration project on the Williams Fork River.

Environmental Commitments

Begin stream bank monitoring on the North Fork of the South Platte River and South Boulder Creek to identify erosion and/or unstable banks, and make repairs, as needed.

Environmental Commitments

Construct a fish ladder on Cabin Creek in Grand County.

Environmental Commitments

Convey approximately 540 acres of land near the Moffat Tunnel to the U.S. Forest Service for permanent protection and management as part of the National Forest System.

Environmental Commitments

Protect raptor species, fight invasive species, relocate rare plant species and responsibly remove trees and brush in the reservoir’s expanded footprint.

Environmental Commitments

Continue to participate in the U.S. Fish and Wildlife Service’s Upper Colorado River Recovery Program and the Platte River Recovery Implementation Program, both designed to protect endangered species.

Public Information Yurt

Closed for the Winter

Coffee Shop office hours continue

The Public Information Yurt is closed for the winter. We will continue to host office hour at Coal Creek Coffee, 30509 CO-72.

Upcoming office hours are below.

Friday, November 9: 10:30 a.m. to 2 p.m.

Please stop by to learn more about the Gross Reservoir Expansion Project. For local community members that are not able to visit during these times, please reach out to us to schedule an appointment outside of our office hours posted above.

Thank You Supporters

News

Surveyors in the field

You may have noticed surveyors taking readings on Gross Dam Road from the intersection of Highway 72 to the right abutment of Gross Dam. This work – scheduled to be completed by the end of this month – is part of our ongoing efforts to improve safety for all who drive...

Thank you tour participants!

Our thanks to all who joined us for a tour of the Gross Reservoir Expansion Project on Oct. 5. Staff from Sen. Gardner and Sen. Bennet’s offices, representatives from Denver Water distributors and the South Metro Chamber of Commerce, among others, joined...

Thank you attendees!

On Saturday, September 29 Denver Water hosted the third community cookout event. We want to thank those who stopped by to learn more about the Gross Reservoir Expansion Project and spent time at the yurt. The public information yurt remains open three days each week...

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