Glenharold Mine 143-84-09-3h

Missouri River-TR· Oliver, North Dakota· Built 1980· Earth· 20 ft tall

Key Takeaway

Glenharold Mine 143-84-09-3h is classified as low hazard in North Dakota. It was completed in 1980 and is 46 years old. Its primary use is fire protection.

Physical Details

Dam Height 20 ft (taller than 65.1% in ND)
Dam Length0 ft
Dam TypeEarth
Max Storage59 acre-ft
Normal Storage20 acre-ft
Surface Area4 acres
Drainage Area1 sq mi
Year Completed1980 (46 years old)
Year Modified1999
NID IDND00852

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: April 21, 1999
State Regulated: Yes
Regulatory Agency: ND DWR

Ownership

Glenharold Mine

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Glenharold Mine 143-84-09-3h?

Glenharold Mine 143-84-09-3h is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Glenharold Mine 143-84-09-3h?

Glenharold Mine 143-84-09-3h is owned by Glenharold Mine (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Glenharold Mine 143-84-09-3h built?

Glenharold Mine 143-84-09-3h was completed in 1980, making it 46 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 Glenharold Mine 143-84-09-3h?

Glenharold Mine 143-84-09-3h serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Glenharold Mine 143-84-09-3h?

Glenharold Mine 143-84-09-3h has a dam height of 20 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 Glenharold Mine 143-84-09-3h last inspected?

Glenharold Mine 143-84-09-3h was last inspected on April 21, 1999. 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.