Knife River Coal Pond 30

Knife River-TR· Mercer, North Dakota· Built 1988· Earth· 69 ft tall
Low Hazard Other Public Utility

Key Takeaway

Knife River Coal Pond 30 is classified as low hazard in North Dakota. It was completed in 1988 and is 38 years old. Its primary use is other.

Physical Details

Dam Height 69 ft (taller than 98.3% in ND)
Dam Length0 ft
Dam TypeEarth
Max Storage818 acre-ft
Normal Storage282 acre-ft
Surface Area22 acres
Drainage Area4 sq mi
Year Completed1988 (38 years old)
NID IDND00443

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
State Regulated: Yes
Regulatory Agency: ND DWR

Ownership

Westmoreland Beulah Mine

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Knife River Coal Pond 30?

Knife River Coal Pond 30 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 Knife River Coal Pond 30?

Knife River Coal Pond 30 is owned by Westmoreland Beulah Mine (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Knife River Coal Pond 30 built?

Knife River Coal Pond 30 was completed in 1988, making it 38 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 Knife River Coal Pond 30?

Knife River Coal Pond 30 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Knife River Coal Pond 30?

Knife River Coal Pond 30 has a dam height of 69 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.

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.