The Gross Reservoir Expansion Project is a major component of Denver Water’s long-term, multi-pronged approach to deliver safe, reliable water to the more than 1.5 million residents in our service area today and many of the projected millions who will call Colorado home in the decades to come. By Beverly Kurtz, Jennie Curtis, Tim Guenthner, Seth Cousin and Josh King. Denver Water has proposed a planned expansion of the Gross Reservoir Dam (map locator) in southwest Boulder County. As our demand grew, Denver Water planned to raise the dam to provide water in a just in time approach. The Gross Reservoir Expansion Project is a major component of Denver Water’s long-term, multi-pronged approach (including promoting water efficiency, recycling water and responsibly sourcing new storage) to ensure we are able to deliver safe, reliable water to the more than 1.5 million residents in our service area today and to many of the projected 8.1 million who will call Colorado home by 2050. Also, read more on our Community Responsiveness page and on DenverWaterTAP.org ! Gross Reservoir Expansion Project update - Duration: 2:32. 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. The higher dam will expand the capacity of the reservoir in Boulder County by 77,000 acre-feet. Provide $2 million towards aquatic habitat improvements on the Upper Colorado River. Expanding Gross Reservoir would require more than 25 million cubic feet of concrete, the removal of an estimated 234,000 trees and about 7,200 truck deliveries of cement and fly … The reservoir receives water from the western side of the Continental Divide through the Moffat Tunnel. 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. Although a postcard sent to property owners near Gross Reservoir said public comment about the proposed expansion project should be in by Oct. … In addition to the environmental commitments we’ve made to communities surrounding the project, agreements are in place that tie this project directly to protecting South Boulder Creek and the Fraser, Williams Fork, Blue and Colorado rivers. Denver Water is planning a major expansion of the reservoir that will increase height of the Gross Reservoir Dam by 131 feet and water storage by 77,000 acre-feet. Colorado History - Gross Reservoir - DJI Inspire 2 X5S - Duration: 4:07. Fish and Wildlife Service’s Upper Colorado River Recovery Program and the Platte River Recovery Implementation Program, both designed to protect endangered species. On July 17, 2020, the Federal Energy Regulatory Commission (FERC) approved Denver Water proceeding with the design and construction of expanding Gross Reservoir in Boulder County. Gross Reservoir Dam outside Boulder, on Monday, July 1, 2019. The Federal Energy Regulatory Commission ordered Denver Water to proceed with design and construction to expand Gross Reservoir in Boulder County, which involves raising the dam an additional 131 feet. Good for drivers, bad for the Fraser River, Keep it cool: Good for the Fraser River and its trout, Searching for solutions to help trout keep their cool, Gross Reservoir Expansion Proposal Presents Water Demand, Environmental Concerns. If you have questions, please contact us. About 45 people spoke to the commission following presentations by Denver Water and Boulder Planning Staff Dale Case. Provide flushing flows in the Williams Fork and Fraser River basins. The expansion project at Gross Reservoir will raise the dam 131 feet to a final height of 471 feet. Gross Reservoir Expansion Update. A plan to expand Gross Reservoir in Boulder County cleared its final federal hurdle on July 16, 2020, when the Federal Energy Regulatory Commission gave its approval for the project and ordered Denver Water to proceed with design and construction.. This project will remove unstable rock at the boat ramp to ensure a safe environment for the public and Denver Water... What is the Gross Reservoir Expansion Project? Provide funding towards Colorado Parks and Wildlife’s cutthroat trout habitat projects to protect and restore native trout populations. “The project will only take... 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. With demand projected to increase, expanding Gross Reservoir is one facet of Denver Water’s comprehensive strategy – including promoting water efficiency, recycled water and responsible sourcing new supply – to meet future customers’ needs. In 2017, after 14 years of environmental study and analysis, Denver Water received the 404 Permit and Record of Decision from the Corps. Expanding Gross Reservoir will help protect Denver Water customers from future drought and projected shortfalls in the overall water storage system. This raise will be constructed with a construction method known as a downstream buttress, which will use the existing dam as formwork. We invite you to search for an available time and book an online meeting here. What is the Gross Reservoir Expansion Project? Law Week Colorado - Nov. 24, 2020 - "... the agreement obligates Denver Water to reduce diversions during drought years. Information on the proposed project (also known as the “Moffat Collection System Project”) can be found on Denver Water’s website at www.GrossReservoir.org. John Scarffe, Boulder County. This project goes beyond securing our customer’s water future; it helps secure the future of the natural environment for all Coloradans. Denver Water attained final federal approval for their Gross Reservoir Expansion Project in mid-July. Provide $6 million to Grand County to use towards environmental projects, and continue to participate in the “. With this project, we will provide water to current and future customers while providing environmental benefits to Colorado’s rivers and streams. Denver Water is working with communities we are likely to impact during all phases of the project. 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. Check out, “Keep it cool: Good for the Fraser River and its trout.”, Release water into Ranch Creek in response to high temperatures found through water temperature monitoring. In short, because of this project, they are better protected now than they were yesterday. Check out, “Good for drivers, bad for the Fraser River.”, Restore a portion of Fraser Flats in Grand County. Allow Grand County to store up to 2,500 acre-feet of water in Williams Fork Reservoir for environmental purposes. The FERC regulates the production of hydropower in the United States, and expanding Gross Reservoir required FERC’s approval of Denver Water’s application to amend its… The expansion project will raise the height of the existing Gross Reservoir dam, completed in 1954, by 131 feet, allowing the reservoir to nearly triple in size. Officials say the design phase of the Gross Reservoir Expansion Project is expected to wrap up by mid-2021 and will be followed by four years of construction. We’re hopeful that this dedicated, more regular presence in the community will enable us to open lines of communication and increase understanding from all perspectives. State of Colorado certification moves Gross Reservoir Expansion Project closer to reality, and cooperation is the key. Denver Water is proposing to expand Gross Reservoir in Boulder County by raising the height of the existing dam. Denver Water — which provides water to around a quarter of Colorado’s population — received final approval Friday from the Federal Energy Regulatory Commission to move forward with the expansion of Gross Reservoir in Boulder County.. Denver Water CEO/Manager Jim Lochhead honored thanked the Gross Reservoir Expansion team with a Becoming the Best Award in 2018. Jeff Martin, Denver Water’s program manager on the Gross Reservoir Expansion Project sits for an interview about the project goals, core values and minimizing inconvenience to our neighbors. Monitor stream temperatures and water quality in Gross Reservoir, South Boulder Creek and the Fraser River Basin. The expansion of the reservoir will raise the facility’s dam 131 feet and will increase the capacity of the reservoir by 77,000 acre-feet. Protect raptor species, fight invasive species, relocate rare plant species and responsibly remove trees and brush in the reservoir’s expanded footprint. providing environmental benefits to Colorado’s rivers and streams, adjust our practices to minimize inconvenience to the local community, Gross Reservoir Expansion Proposal Presents Water Demand, Environmental Concerns. The project relies on the expansion of an existing footprint — without the placement of a new dam, reservoir or diversion structure; it also benefits from an original design that anticipated eventual expansion. Once the dam is complete, the final phase will begin, which involves removal of trees and brush from the new inundation footprint. The public information yurt, which is open seasonally and staffed between five and seven days a week, is intended to provide a welcoming space where members of the local community and recreationists can stop and learn more about the project, express concerns and share experiences. When complete, the reservoir will be capable of holding about 119,000 acre-feet of water to provide greater system balance and resiliency. 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. Gross Reservoir, located in Boulder County, Colorado, is owned and operated by Denver Water. The project improves water dependability for many along Colorado’s Front Range by protecting against potential natural and human-caused disasters. (Chris Schneider, Special to The Colorado Sun) The information gathered here will be provided to the qualified CMGC contractors in early 2019. Hiking and fishing access remains open, please ensure you are following local COVID-19 guidelines. Denver Water 2,865 views. The $464 million (in 2025 dollars) expansion involves raising Gross Dam by 131 feet to nearly triple the size of the reservoir behind it. Check out, “Searching for solutions to help trout keep their cool.”. 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... 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... Boating recreation is closed at Gross reservoir. It does admit that the Gross Reservoir expansion project will inundate portions of Winiger Gulch Potential Conservation Area and more than 240 acres of Winiger Ridge Environmental Conservation Area, destroy 3.9 acres of plant communities considered to be of “local concern,” and cause a variety of short term air quality, water quality, and noise impacts and possible invasion of non-native aquatic species. Complete a stream restoration project on South Boulder Creek. 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. We do offer online one-on-one appointments with our project representatives who can answer your questions about the Gross Reservoir Expansion Project. The Gross Reservoir Expansion Project is one of the major elements of Denver Water’s long-term supply plan. Starting in fall 2017, we opened a community welcome and information center at Gross Reservoir. Complete a stream restoration project on the Williams Fork River. 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. 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. This was a public hearing for the Board of County Commissioners to determine whether the Boulder County Land Use Director erred in his decision that the proposed Gross Reservoir Expansion Project is subject to local government review. Additional Water storage will help protect Denver Water ’ s community commitments based on years of study and outreach... Of Denver Water commitments to adjust our practices to minimize inconvenience to the qualified CMGC contractors in 2019. 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