Mickelson Memorial Marsh North Dam

TRIB. BIG SIOUX RIVER· Hamlin, South Dakota· Built 1994· Earth· 8 ft tall
Low Hazard Fish And Wildlife Pond Recreation State Government

Key Takeaway

Mickelson Memorial Marsh North 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 8 ft (taller than 0.4% in SD)
Dam Length755 ft
Dam TypeEarth
Max Storage450 acre-ft
Normal Storage154 acre-ft
Surface Area91 acres
Drainage Area8 sq mi
Max Discharge120 cfs
Year Completed1994 (32 years old)
NID IDSD02385

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
Last Inspection: November 27, 2019
State Regulated: Yes
Regulatory Agency: DANR

Ownership

GF&P

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mickelson Memorial Marsh North Dam?

Mickelson Memorial Marsh North 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 Mickelson Memorial Marsh North Dam?

Mickelson Memorial Marsh North Dam is owned by GF&P (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mickelson Memorial Marsh North Dam built?

Mickelson Memorial Marsh North 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 Mickelson Memorial Marsh North Dam?

Mickelson Memorial Marsh North Dam serves the following purposes: Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mickelson Memorial Marsh North Dam?

Mickelson Memorial Marsh North Dam has a dam height of 8 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.

When was Mickelson Memorial Marsh North Dam last inspected?

Mickelson Memorial Marsh North Dam was last inspected on November 27, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.

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.