Knife River Coal Pond 30
Knife River Coal Pond 30 is an earth dam located in Mercer County, North Dakota, built in 1988. It carries a Low hazard potential classification.
About Knife River Coal Pond 30
Knife River Coal Pond 30 is a dam in Mercer, North Dakota. The dam is owned by Westmoreland Beulah Mine (public utility). It impounds the Knife River-tr near N.
The dam stands 69 feet tall, creates a reservoir covering 21 acres, has a maximum storage capacity of 818 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1988, the structure is 38 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
At 69 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | North Dakota |
| County | Mercer |
| Nearest City | N |
| River/Stream | Knife River-tr |
| Coordinates | 47.21795, -101.80416 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 69 ft |
| Dam Height | 69 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 818 acre-ft |
| Max Storage | 818 acre-ft |
| Normal Storage | 282 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Westmoreland Beulah Mine |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00443 |
| Federal ID | ND00443 |
| More Info | State Dam Safety Program |