Lake Louise

Little Iowa River· Mower, Minnesota· Built 1900· Gravity· 9 ft tall
Low Hazard Recreation State Government

Key Takeaway

Lake Louise is classified as low hazard in Minnesota. It was completed in 1900 and is 126 years old. Its primary use is recreation.

Physical Details

Dam Height 9 ft (taller than 25.1% in MN)
Dam Length250 ft
Dam TypeGravity
Max Storage150 acre-ft
Normal Storage100 acre-ft
Surface Area15 acres
Drainage Area64 sq mi
Max Discharge7,509 cfs
Year Completed1900 (126 years old)
NID IDMN00409

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: May 10, 2017
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

MNDNR-Parks

State Government

Frequently Asked Questions

What is the hazard classification of Lake Louise?

Lake Louise 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 Louise?

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

When was Lake Louise built?

Lake Louise was completed in 1900, making it 126 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 Louise?

Lake Louise 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 Lake Louise?

Lake Louise has a dam height of 9 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 Lake Louise last inspected?

Lake Louise was last inspected on May 10, 2017. 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.