Epping Dam

Stony Creek· Williams, North Dakota· Built 1935· Earth· 47 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Epping Dam is classified as significant hazard in North Dakota. It was completed in 1935 and is 91 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 47 ft (taller than 94.5% in ND)
Dam Length1,000 ft
Dam TypeEarth
Max Storage3.9K acre-ft
Normal Storage1.6K acre-ft
Surface Area148 acres
Drainage Area73 sq mi
Year Completed1935 (91 years old)
NID IDND00249

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: September 26, 2019
State Regulated: Yes
Regulatory Agency: ND DWR

Ownership

Williams County WRB

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Epping Dam?

Epping Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Epping Dam?

Epping Dam is owned by Williams County WRB (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Epping Dam built?

Epping Dam was completed in 1935, making it 91 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Epping Dam?

Epping Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Epping Dam?

Epping Dam has a dam height of 47 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Epping Dam last inspected?

Epping Dam was last inspected on September 26, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.