Lake Herman Mip #3

TR-LAKE HERMAN· Lake, South Dakota· Built 1981· Earth· 29 ft tall
Low Hazard Flood Risk Reduction Debris Control Local Government

Key Takeaway

Lake Herman Mip #3 is classified as low hazard in South Dakota. It was completed in 1981 and is 45 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 29 ft (taller than 82.6% in SD)
Dam Length1,343 ft
Dam TypeEarth
Max Storage1.4K acre-ft
Normal Storage660 acre-ft
Surface Area5 acres
Drainage Area11 sq mi
Max Discharge4,315 cfs
Year Completed1981 (45 years old)
NID IDSD02183

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

LAKE CO. CONSV. DIST.

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Herman Mip #3?

Lake Herman Mip #3 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 Lake Herman Mip #3?

Lake Herman Mip #3 is owned by LAKE CO. CONSV. DIST. (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Herman Mip #3 built?

Lake Herman Mip #3 was completed in 1981, making it 45 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 Lake Herman Mip #3?

Lake Herman Mip #3 serves the following purposes: Flood Risk Reduction, Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lake Herman Mip #3?

Lake Herman Mip #3 has a dam height of 29 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.