North Crow Diversion
North Crow Diversion is an arch dam located in Laramie County, Wyoming, built in 1910. It carries a Significant hazard potential classification and has a fair condition assessment.
About North Crow Diversion
The primary purpose of North Crow Diversion is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Cheyenne-cbpu (local government). It impounds the North Fork Of Crow Creek near Cheyenne.
The dam stands 46 feet tall and stretches 146 feet across, has a maximum storage capacity of 4,000 acre-feet, and collects water from a drainage area of 28 square miles. Completed in 1910, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/28/2022.
At 46 feet, this dam is taller than 91% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Laramie |
| Nearest City | Cheyenne |
| River/Stream | North Fork Of Crow Creek |
| Coordinates | 41.22056, -105.18722 |
Physical Characteristics
| Dam Type | Arch |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 146 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 4,000 acre-ft |
| Max Storage | 4,000 acre-ft |
| Normal Storage | 75 acre-ft |
| Drainage Area | 28 sq mi |
| Max Discharge | 115 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF CHEYENNE-CBPU |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 04/28/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01315 |
| Federal ID | WY01315 |
| More Info | State Dam Safety Program |