Granite Springs, also known as Cheyenne #2, is a historic masonry dam located in Laramie, Wyoming, serving as a crucial water supply source for the city of Cheyenne.
Wind
Humidity
Completed in 1904, this architectural marvel stands at a height of 90 feet and has a storage capacity of 5,780 acre-feet. Situated on Middle Crow Creek, the dam's primary purpose is to ensure reliable water access for the region, with a drainage area of 28.4 square miles and a maximum discharge rate of 29,800 cubic feet per second.
Despite its age, Granite Springs has been well-maintained, with regular inspections and a fair condition assessment as of June 2017. The dam features an uncontrolled spillway, two other controlled outlet gates, and a high hazard potential due to its critical role in water supply management. With a moderate risk assessment rating, ongoing risk management measures are in place to mitigate any potential hazards and ensure the safety and functionality of the structure. As a key infrastructure asset in the region, Granite Springs plays a vital role in water resource management and climate resilience efforts in Wyoming.
Year Completed |
1904 |
Dam Length |
423 |
Dam Height |
90 |
River Or Stream |
MIDDLE CROW CREEK |
Primary Dam Type |
Masonry |
Surface Area |
190 |
Hydraulic Height |
87 |
Drainage Area |
28.4 |
Nid Storage |
5780 |
Structural Height |
90 |
Outlet Gates |
Other Controlled - 2 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
90 |
| Location | Reservations | Toilets |
|---|---|---|
Curt Gowdy State Park
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Vedauwoo Campground
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Vedauwoo
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Pole Creek Dispersed Campground
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Yellow Pine Campground
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Yellow Pine
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