Fish Lake Outlet

Watonwan River-TR· Cottonwood, Minnesota· Built 1953· Earth· 7 ft tall
Low Hazard State Government

Key Takeaway

Fish Lake Outlet is classified as low hazard in Minnesota. It was completed in 1953 and is 73 years old.

Physical Details

Dam Height 7 ft (taller than 8.5% in MN)
Dam Length16 ft
Dam TypeEarth
Max Storage5.9K acre-ft
Normal Storage4.3K acre-ft
Drainage Area3 sq mi
Max Discharge250 cfs
Year Completed1953 (73 years old)
NID IDMN00164

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: MNDNR EWR

Ownership

MNDNR

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fish Lake Outlet?

Fish Lake Outlet 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 Outlet?

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

When was Fish Lake Outlet built?

Fish Lake Outlet was completed in 1953, making it 73 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Fish Lake Outlet?

Fish Lake Outlet 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.

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.