Gross Reservoir Expansion Project
News and Updates
Have fun, stay safe on the water
May 28, 2021 - TAP - Here’s what to expect when boating, paddleboarding on Denver Water reservoirs this summer. “It’s important to remember that the primary purpose of our reservoirs is to store water for more than 1.5 million people in the metro area,” Ransom said....
Getting a (big) jump on a healthy environment
May 21, 2021 - TAP - Denver Water completing required stream and habitat improvements years ahead of final go-ahead for Gross Reservoir expansion. “Our No. 1 objective is to do right by our partners, by our customers and by the environment,” said Jeff Martin, project...
2020 Year-End Report
Last year was unique and required a lot of adaptation but we are proud of what we were able to progress throughout 2020. The 2020 Year-End Report can be viewed by clicking the image below.
Federal Lawsuit Dismissal Order
April 1, 2021 - Today’s decision is an important step. We will continue working earnestly through Boulder’s land-use process and look forward to beginning work on a project critical to water security for 1½ million people and to our many partners on the Front Range...
Denver Water submits response to agency and public comments on 1041 Permit Application
Denver Water received referral agency and public comments on its 1041 Permit Application from Boulder County on December 23, 2020. On February 19, 2021, Denver Water completed and filed its response to referral agency and public comments to Boulder County. Additional...
Gross Reservoir Expansion Proposal Presents Water Demand, Environmental Concerns
Law Week Colorado - Nov. 24, 2020 - "... the agreement obligates Denver Water to reduce diversions during drought years. “The project itself was shaped and designed to avoid damaging or affecting flows in the driest of years,” he said. “The project will only take...
Osprey Point Closure
Nov. 30, 2020 - Beginning the week of Nov. 30, Denver Water will be performing a safety project at the Osprey Point boat ramp at Gross Reservoir. This project will remove unstable rock at the boat ramp to ensure a safe environment for the public and Denver Water...
Going electrofishing on the Fraser Flats
TAP - Nov. 20, 2020 - "The data from the fish surveys are shared with Learning By Doing, a unique partnership between East and West Slope organizations in Colorado that focuses on maintaining the aquatic environment in Grand County and improving conditions when...
Aging outlet works at base of Denver Water dam call for major upgrade to valves, pipes.
October 16, 2020 - TAP - "At Gross Reservoir, one of the most important reservoirs in Denver Water’s system, it’s time to replace the outlet works, a seven-month job so big it will require sawing up massive slabs of concrete and removing fat steel pipes so big a short...
Denver Water submits 1041 permit application with Boulder County
On Sept. 21, Denver Water submitted its 1041 permit application with Boulder County for the Gross Reservoir Expansion Project. The application document is available to view here. We look forward to Boulder County’s 1041 review of the Gross Reservoir expansion with...
Drilling tests to run Oct. 5-30
Beginning Monday, Oct. 5, Denver Water will begin a subsurface investigation that will involve drilling operations close to Osprey Point. This work will inform Denver Water on the suitability of the proposed Osprey Point quarry location for the Gross Reservoir...
Denver Water statement on seeking dismissal of its appeal of 1041 case
July 29, 2020 - A year ago, Denver Water submitted an application with Boulder County to begin the 1041 process related to the Gross Reservoir expansion. At the same time, we sought clarity in the courts on whether the expansion was subject to that process. Boulder...
Final federal approval secured for Gross Reservoir Expansion Project
DENVER — July 17, 2020 — Today, the Federal Energy Regulatory Commission ordered Denver Water to proceed with design and construction to expand Gross Reservoir in Boulder County. Seventeen years ago, Denver Water began the federal environmental permitting process that...
Virtual Appointment Booking
Have you heard that the Gross Reservoir Expansion Project now offers virtual one-on-one appointments? Due to continued social distancing guidelines, we are not able to host our regular office hours at our public information yurt this year. However, we would still love...
Notice of utility locate survey work on Gross Dam Road
Beginning May 25, Lamb-Star Engineering, LLC, through a subcontract with Stantec and Denver Water, as part of Stantec’s work on roadway design for safety improvements of Gross Dam Road will be completing utility location surveys along Gross Dam Road. This work will...
Boating opens May 22 at Gross Reservoir; plan for possible crowds
Gross Reservoir opens for boating Friday, May 22, and recreation managers want visitors to be aware of the potential for crowds, slow traffic, lower water levels and parking challenges. The reservoir, southwest of Boulder, is popular with kayakers and others using...
Notice of on-site closure of Gross Dam Road
COAL CREEK CANYON — April 24, 2020 — Access to trails, viewpoints and shorelines on the south side of Gross Reservoir will be closed on weekdays between Monday, April 27, and Friday, May 8, for watershed protection activities in coordination with the Colorado State...
Statement on USFWS determination related to green lineage cutthroat trout
The determination from the U.S. Fish and Wildlife Service doesn’t change Denver Water’s commitment to protecting the environment as we move forward with this critical project. Denver Water has agreed to more than 60 mitigation and enhancement projects on both side of...