Fish Lake Fish Barrier

Watonwan River South Fork· Cottonwood, Minnesota· Built 1991· Concrete· 7 ft tall
Low Hazard Fish And Wildlife Pond State Government

Key Takeaway

Fish Lake Fish Barrier is classified as low hazard in Minnesota. It was completed in 1991 and is 35 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 7 ft (taller than 8.5% in MN)
Dam TypeConcrete
Max Storage862 acre-ft
Normal Storage700 acre-ft
Surface Area300 acres
Drainage Area2 sq mi
Year Completed1991 (35 years old)
Year Modified1993
NID IDMN01151

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: April 22, 2008
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

MNDNR

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fish Lake Fish Barrier?

Fish Lake Fish Barrier 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 Fish Lake Fish Barrier?

Fish Lake Fish Barrier is owned by MNDNR (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Fish Lake Fish Barrier built?

Fish Lake Fish Barrier was completed in 1991, making it 35 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 Fish Lake Fish Barrier?

Fish Lake Fish Barrier serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Fish Lake Fish Barrier?

Fish Lake Fish Barrier has a dam height of 7 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 Fish Lake Fish Barrier last inspected?

Fish Lake Fish Barrier was last inspected on April 22, 2008. 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.