Marshall Lake

Buffalo River-TR· Becker, Minnesota· Built 1972· Earth· 8 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Marshall Lake is classified as low hazard in Minnesota. It was completed in 1972 and is 54 years old. Its primary use is recreation.

Physical Details

Dam Height 8 ft (taller than 16.2% in MN)
Dam Length97 ft
Dam TypeEarth
Max Storage2.3K acre-ft
Normal Storage2.3K acre-ft
Surface Area160 acres
Drainage Area1 sq mi
Max Discharge450 cfs
Year Completed1972 (54 years old)
NID IDMN00144

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: August 30, 2023
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

County of Becker

Local Government

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Frequently Asked Questions

What is the hazard classification of Marshall Lake?

Marshall Lake 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 Marshall Lake?

Marshall Lake is owned by County of Becker (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Marshall Lake built?

Marshall Lake was completed in 1972, making it 54 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 Marshall Lake?

Marshall Lake 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 Marshall Lake?

Marshall Lake has a dam height of 8 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 Marshall Lake last inspected?

Marshall Lake was last inspected on August 30, 2023. 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.