Epping Dam
Epping Dam is an earth dam located in Williams County, North Dakota, built in 1935. It carries a Significant hazard potential classification.
About Epping Dam
The primary purpose of Epping Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Williams County Wrb (local government). It impounds the Stony Creek near Spring Brook.
The dam stands 56 feet tall and stretches 1,000 feet across, creates a reservoir covering 148 acres, has a maximum storage capacity of 3,890 acre-feet, and collects water from a drainage area of 72 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/26/2019.
At 56 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | North Dakota |
| County | Williams |
| Nearest City | Spring Brook |
| River/Stream | Stony Creek |
| Coordinates | 48.25752, -103.42923 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 56 ft |
| Dam Height | 47 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 3,890 acre-ft |
| Max Storage | 3,890 acre-ft |
| Normal Storage | 1,560 acre-ft |
| Surface Area | 148 acres |
| Drainage Area | 72 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Williams County WRB |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 09/26/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ND00249 |
| Federal ID | ND00249 |
| More Info | State Dam Safety Program |