Usa

TR-GRAND RIVER· Perkins, South Dakota· Built 1950· Earth· 16 ft tall
Low Hazard Water Supply Federal Government

Key Takeaway

Usa is classified as low hazard in South Dakota. It was completed in 1950 and is 76 years old. Its primary use is water supply.

Physical Details

Dam Height 16 ft (taller than 15.7% in SD)
Dam Length640 ft
Dam TypeEarth
Max Storage80 acre-ft
Normal Storage62 acre-ft
Max Discharge2,400 cfs
Year Completed1950 (76 years old)
NID IDSD02113

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
State Regulated: No
Regulatory Agency: DANR

Ownership

USDA FS

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Usa?

Usa is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Usa?

Usa is owned by USDA FS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Usa built?

Usa was completed in 1950, making it 76 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Usa?

Usa serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Usa?

Usa has a dam height of 16 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.