Hill Lake

Hill River· Aitkin, Minnesota· Built 1937· Gravity· 6 ft tall
Low Hazard Recreation State Government

Key Takeaway

Hill Lake is classified as low hazard in Minnesota. It was completed in 1937 and is 89 years old. Its primary use is recreation.

Physical Details

Dam Height 6 ft (taller than 1.9% in MN)
Dam Length24 ft
Dam TypeGravity
Max Storage9.0K acre-ft
Normal Storage2.4K acre-ft
Surface Area900 acres
Drainage Area14 sq mi
Max Discharge980 cfs
Year Completed1937 (89 years old)
NID IDMN00245

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: October 4, 2023
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

MNDNR-Wildlife

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hill Lake?

Hill 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 Hill Lake?

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

When was Hill Lake built?

Hill Lake was completed in 1937, making it 89 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 Hill Lake?

Hill 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 Hill Lake?

Hill Lake has a dam height of 6 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 Hill Lake last inspected?

Hill Lake was last inspected on October 4, 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.