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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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateNorth Dakota
CountyMercer
Nearest CityN
River/StreamKnife River-tr
Coordinates47.21795, -101.80416

Physical Characteristics

Dam TypeEarth
NID Height69 ft
Dam Height69 ft
Year Completed1988 (38 years old)

Storage & Hydraulics

NID Storage818 acre-ft
Max Storage818 acre-ft
Normal Storage282 acre-ft
Surface Area21 acres
Drainage Area4 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
OwnerWestmoreland Beulah Mine
Owner TypePublic Utility
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDND00443
Federal IDND00443
More InfoState Dam Safety Program

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