Tewaukon Ws-t-1-a Dam

Tewaukon Ws-t-1-a Dam is an earth dam located in Sargent County, North Dakota, built in 1963. It carries a Significant hazard potential classification.

About Tewaukon Ws-t-1-a Dam

The primary purpose of Tewaukon Ws-t-1-a Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Sargent County Wrb (local government). It impounds the Wild Rice River-tr near N.

The dam stands 44 feet tall and stretches 3,370 feet across, creates a reservoir covering 31 acres, has a maximum storage capacity of 2,638 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam.

At 44 feet, this dam is taller than 90% of dams nationwide.

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Significant HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateNorth Dakota
CountySargent
Nearest CityN
River/StreamWild Rice River-tr
Coordinates45.94063, -97.54308

Physical Characteristics

Dam TypeEarth
NID Height44 ft
Dam Height40 ft
Dam Length3,370 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage2,638 acre-ft
Max Storage2,638 acre-ft
Normal Storage170 acre-ft
Surface Area31 acres
Drainage Area11 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerSargent County WRB
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Emergency Action PlanYes

Identifiers

NID IDND00052
Federal IDND00052
More InfoState Dam Safety Program

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