Williams Dam

TRIB. SNAKE CREEK· Edmunds, South Dakota· Built 1994· Earth· 12 ft tall

Key Takeaway

Williams Dam is classified as low hazard in South Dakota. It was completed in 1994 and is 32 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 12 ft (taller than 3% in SD)
Dam Length370 ft
Dam TypeEarth
Max Storage135 acre-ft
Normal Storage35 acre-ft
Surface Area12 acres
Drainage Area11 sq mi
Max Discharge900 cfs
Year Completed1994 (32 years old)
NID IDSD02388

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

LEROY WILLIAMS

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Williams Dam?

Williams Dam 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 Williams Dam?

Williams Dam is owned by LEROY WILLIAMS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Williams Dam built?

Williams Dam was completed in 1994, making it 32 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 Williams Dam?

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

How tall is Williams Dam?

Williams Dam has a dam height of 12 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.