Tribal

TR-ANTELOPE CREEK· Stanley, South Dakota· Built 1957· Earth· 24 ft tall
Low Hazard Water Supply Federal Government

Key Takeaway

Tribal is classified as low hazard in South Dakota. It was completed in 1957 and is 69 years old. Its primary use is water supply.

Physical Details

Dam Height 24 ft (taller than 53.3% in SD)
Dam Length620 ft
Dam TypeEarth
Max Storage63 acre-ft
Normal Storage27 acre-ft
Max Discharge625 cfs
Year Completed1957 (69 years old)
NID IDSD01542

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

LOWER BRULE TRIBE

Federal Government

Nearby Dams

Hattum Dam

Hughes, SD

Low Hazard 31 ft

Double Dam

Stanley, SD

Low Hazard 21 ft

H.C. Calhoun

Hughes, SD

Low Hazard 13 ft

Garber Dam

Hughes, SD

Low Hazard 32 ft

Bennett Martin

Hughes, SD

Low Hazard 18 ft

Williams 783

Stanley, SD

Low Hazard 14 ft

Etzkorn

Hughes, SD

Low Hazard 26 ft

Alfred Urban

Lyman, SD

Low Hazard 25 ft

Frequently Asked Questions

What is the hazard classification of Tribal?

Tribal 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 Tribal?

Tribal is owned by LOWER BRULE TRIBE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Tribal built?

Tribal was completed in 1957, making it 69 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 Tribal?

Tribal 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 Tribal?

Tribal has a dam height of 24 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.