Mcgee Dam

TR-IRON DOG· Corson, South Dakota· Built 1934· Earth· 21 ft tall
Low Hazard Recreation State Government

Key Takeaway

Mcgee Dam is classified as low hazard in South Dakota. It was completed in 1934 and is 92 years old. Its primary use is recreation.

Physical Details

Dam Height 21 ft (taller than 40.7% in SD)
Dam Length1,177 ft
Dam TypeEarth
Max Storage397 acre-ft
Normal Storage251 acre-ft
Surface Area30 acres
Drainage Area4 sq mi
Max Discharge512 cfs
Year Completed1934 (92 years old)
Year Modified1999
NID IDSD00730

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 17, 2018
State Regulated: Yes
Regulatory Agency: DANR

Ownership

S&PL

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mcgee Dam?

Mcgee 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 Mcgee Dam?

Mcgee Dam is owned by S&PL (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mcgee Dam built?

Mcgee Dam was completed in 1934, making it 92 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 Mcgee Dam?

Mcgee Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mcgee Dam?

Mcgee Dam has a dam height of 21 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 Mcgee Dam last inspected?

Mcgee Dam was last inspected on November 17, 2018. 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.