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Halligan and NISP Halligan and NISP
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Draft Environmental Impact Statement (EIS)
The draft EIS and Conceptual Mitigation Plan for the Halligan Water Supply Project were released in November 2019. Both documents are available online and physical copies are available at the following locations:
- Colorado State University Morgan Library, 1201 Center Ave., Fort Collins, CO 80523
- Poudre River Public Library District - Old Town Library, 201 Peterson St., Fort Collins, CO 80524
- Poudre River Public Library - Harmony Library, 4616 S. Shields St., Fort Collins, CO 80526
- University of Northern Colorado, James A. Michener Library, 14th Ave. and 20th St., Greeley, CO 80639
- U.S. Army Corps of Engineers, Denver Regulatory Office, 9307 S. Wadsworth Blvd., Littleton, CO 80128
A public hearing was held Jan. 13 and the comment period closed Feb. 26, 2020, which included a 30-day extension from the Corps..
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 meet the demand of future Fort Collins Utilities' water customers and provide increased reliability for existing customers to help protect against service interruptions related to prolonged drought and 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.
Para información general sobre el proyecto de Halligan en español »
Updates
Explore Halligan Reservoir
Existing Halligan Dam
North Fork of the Poudre River downstream of Halligan Reservoir in July
Halligan Reservoir
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 Reservoir in the Spring
Halligan Dam and Reservoir
North Fork of the Poudre River Looking at Halligan Dam
Halligan Reservoir
Top of Halligan Dam
Halligan Reservoir Inlet
Water Spilling over Halligan Dam
Halligan Reservoir Shoreline
Halligan Reservoir Inlet
Halligan Reservoir