Documents & Maps

To view a map, click a map thumbnail image or title. 

Glade Reservoir Flyover   
This short animation gives a bird's-eye view of an artist's rendering of the  proposed Glade Reservoir and the surrounding area.

 Glade Reservoir site map Glade Reservoir   
Map shows the two preferred alternative reservoirs, the two proposed highway realignment options and pipelines for ditch company water exchanges.  
 Glade/Galeton Alternative  map Glade/Galeton Alternative 
Map shows another view of Glade Reservoir overlaid on an aerial map.

 Highway 287 Realignment map Highway 287 Realignment
Map shows locations of the two most likely U.S. Highway 287 relocation alternative routes if Glade Reservoir is built. The Colorado Department of Transportation will make the final recommendation.
 Highway 287 Final Alternatives map Highway 287 Final Alternatives
Map is an aerial photo overlay of of Glade Reservoir and U.S. Highway 287 relocation alternative routes with land ownership included. 

 NISP Participants map NISP Participants 
Map shows the 15 Northern Colorado NISP participants and their NISP allotments.
 Cactus Hill Location map Cactus Hill Location
Map shows Cactus Hill Reservoir alternative including necessary infrastructure and Galeton Reservoir configuration.

 Cactus Hill/Galeton map Cactus Hill/Galeton
Map shows another view of the Cactus Hill alternative overlaid on an aerial map.

Environmental Review

NISP Brochures & Newsletters

Public Opinion SurveySee the results of a survey that shows a majority of Larimer and Weld County residents support the Northern Integrated Supply Project.

Water Quality
These documents summarize the Northern Integrated Supply Project studies conducted by Black & Veatch Corporation following questions raised by the City of Fort Collins and others during the Draft Environmental Impact Statement comment period. These studies address issues associated with water quality in Horsetooth Reservoir and the Poudre River as well as at a defunct missile site north of the river. 

Ag Water Quality and NISP
Maintaining water quality is an important component of the Northern Integrated Supply Project. To that end, the 15 NISP participants have utilized one of the nation’s foremost experts on agricultural water quality issues – Dr. Glenn Hoffman – to analyze water samples collected in the New Cache and Larimer and Weld canals and at the Kersey Gage on the South Platte River and predict future salinity levels after the implementation of NISP.

He found NISP will not impact farmers’ ability to grow crops to any great degree. In fact, he states emphatically that even with NISP fully operational, the farmers under these two ditch systems still have some of the best water anywhere to grow crops with.

In the worst case scenario where the salinity approaches 850 parts per million, the water still does not come close to the levels being used throughout the world to grow similar crops. Dr. Hoffman concludes that there could be up to a 10 percent reduction in yield for beans under the worst conditions ever envisioned under NISP. And the farmers being impacted will receive added benefits, including additional water and improvements to their ditch systems.

The Agricultural Water Quality Brochure describes general water quality information and defines commonly used water quality terminology. For further information please contact Amy Johnson at 970-622-2524 or

Other NISP Documents & Materials