Wilson No.2

TR-SOUTH FORK GRAND RIVER· Harding, South Dakota· Built 1960· Earth· 26 ft tall

Key Takeaway

Wilson No.2 is classified as low hazard in South Dakota. It was completed in 1960 and is 66 years old. Its primary use is fire protection.

Physical Details

Dam Height 26 ft (taller than 65.2% in SD)
Dam Length475 ft
Dam TypeEarth
Max Storage520 acre-ft
Normal Storage253 acre-ft
Max Discharge1,050 cfs
Year Completed1960 (66 years old)
NID IDSD01953

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

FRED WILSON

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wilson No.2?

Wilson No.2 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 Wilson No.2?

Wilson No.2 is owned by FRED WILSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wilson No.2 built?

Wilson No.2 was completed in 1960, making it 66 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 Wilson No.2?

Wilson No.2 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 Wilson No.2?

Wilson No.2 has a dam height of 26 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.