Nygren Dam

Nygren Dam is an earth dam located in Morton County, North Dakota, built in 1967. It carries a Low hazard potential classification.

About Nygren Dam

The primary purpose of Nygren Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Morton County Wrb & Hwy D (local government). It impounds the Heart River-tr near N.

The dam stands 37 feet tall and stretches 250 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 193 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1967, the structure is well into its service life at over 50 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. The most recent inspection on record was 06/07/2018.

At 37 feet, this dam is taller than 84% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateNorth Dakota
CountyMorton
Nearest CityN
River/StreamHeart River-tr
Coordinates46.59027, -101.20791

Physical Characteristics

Dam TypeEarth
NID Height37 ft
Dam Height37 ft
Dam Length250 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage193 acre-ft
Max Storage193 acre-ft
Normal Storage92 acre-ft
Surface Area33 acres
Drainage Area4 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMorton County WRB & Hwy D
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection06/07/2018
Emergency Action PlanNot Required

Identifiers

NID IDND00200
Federal IDND00200
More InfoState Dam Safety Program

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