East Fork Wolf Creek is an earth dam located in Natrona County, Wyoming, built in 1974. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 42 ft42 ft tall and 600 ft long, taller than 88% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About East Fork Wolf Creek
The primary purpose of East Fork Wolf Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wolf Creek Limited Partnership (private). It impounds the East Fork Wolf Creek near Casper.
The dam stands 42 feet tall and stretches 600 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 45 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1974, the structure is well into its service life at over 50 years 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 05/18/2022.
At 42 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Casper |
| River/Stream | East Fork Wolf Creek |
| Coordinates | 42.79710, -106.36860 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 600 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 45 acre-ft |
| Max Storage | 45 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,814 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Wolf Creek Limited Partnership |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/18/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01483 |
| Federal ID | WY01483 |
| More Info | State Dam Safety Program |