Deadman Draw Dam

Deadman Draw Dam is an earth dam located in Sioux County, Nebraska, built in 1965. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Deadman Draw Dam

The primary purpose of Deadman Draw 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 Asa Farms Inc. (private). It impounds the Deadman Draw near Mitchell.

The dam stands 58 feet tall and stretches 1,640 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 880 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1965, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 12/03/2021.

At 58 feet, this dam is taller than 95% of all dams in the United States.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountySioux
Nearest CityMitchell
River/StreamDeadman Draw
Coordinates42.03238, -103.87168

Physical Characteristics

Dam TypeEarth
NID Height58 ft
Dam Height45 ft
Dam Length1,640 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage880 acre-ft
Max Storage880 acre-ft
Normal Storage75 acre-ft
Surface Area12 acres
Drainage Area3 sq mi
Max Discharge72 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerAsa Farms Inc.
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection12/03/2021
Emergency Action PlanNot Required

Identifiers

NID IDNE01839
Federal IDNE01839
More InfoState Dam Safety Program

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