Walter Thompson

TRIB. MISSOURI RIVER· Stanley, South Dakota· Built 1959· Earth· 25 ft tall

Key Takeaway

Walter Thompson is classified as low hazard in South Dakota. It was completed in 1959 and is 67 years old. Its primary use is fire protection.

Physical Details

Dam Height 25 ft (taller than 57.4% in SD)
Dam Length360 ft
Dam TypeEarth
Max Storage34 acre-ft
Normal Storage16 acre-ft
Max Discharge563 cfs
Year Completed1959 (67 years old)
NID IDSD01594

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: Yes
Regulatory Agency: DANR

Ownership

WALTER THOMPSON

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Walter Thompson?

Walter Thompson 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 Walter Thompson?

Walter Thompson is owned by WALTER THOMPSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Walter Thompson built?

Walter Thompson was completed in 1959, making it 67 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 Walter Thompson?

Walter Thompson serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Walter Thompson?

Walter Thompson has a dam height of 25 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.