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Construction Phase - Gross Dam

This May, Denver Water and its contractor, Kiewit Barnard, will begin placing concrete to raise Gross Dam. We will build 118 concrete steps from the bottom of the existing dam to the new dam crest, 131 feet above the existing dam. Be on the lookout for a postcard to learn more about what to expect during this phase of construction. Denver Water is also working diligently to reopen Gross Dam Road to the public. Due to the severity of the rockfall caused by the March snowstorm, and based on guidance from geotechnical engineers, we

have implemented a two-phase approach to reopen the road. The first phase, completed in late March, reopened the road for emergency responders only. Now that the road is clear of debris, we will begin phase two and fully assess what additional repairs are needed to ensure the road is suitable for unrestricted public use. We will update the project MyMap once we have an estimated timeline to reopening the road and the Fisherman's Parking Lot. 

If you have questions, please stop by Canyon Coffee for our in-person office hours on Wednesdays from 8 - 10 a.m. (weather permitting) or email us at

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