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This site has been newly updated as of 2019 and will continue to be updated with additional information as it becomes available. To stay up to date on the project, sign up for our periodic e-newsletter.
Project Overview
Halligan Reservoir
Halligan Reservoir is an existing reservoir on the North Fork of the Poudre River, 25 miles northwest of Fort Collins.
If approved, the Halligan Water Supply Project will enlarge Halligan Reservoir by approximately 8,100 acre-feet to help provide additional protection for Fort Collins Utilities' water customers from future service interruptions during emergencies.
The project will help:
- Provide a storage reserve for emergency water supply disruptions
- Increase drought security
- Improve water system reliability and flexibility
- Meet future water demands of the Fort Collins Utilities' water service area
Currently, the U.S. Army Corps of Engineers (Corps) is working on a draft Environmental Impact Statement (EIS) before making a final permitting decision on if Halligan Reservoir can be expanded.
Updates
Explore Halligan Reservoir
Existing Halligan Dam
Halligan Reservoir
North Fork of the Poudre River downstream of Halligan Reservoir. Currently, the river runs dry several months out of the year. The Halligan Water Supply Project would restore minimum flows year-round to this part of the river, improving the river and surrounding habitat.
Aerial View of Halligan Reservoir
Halligan Dam with Water Spilling
Halligan Dam and Reservoir
North Fork of the Poudre River Looking at Halligan Dam
Top of Halligan Dam
Water Spilling over Halligan Dam
Halligan Reservoir Inlet
Halligan Reservoir