Little Pine Lake

Ripple River· Aitkin, Minnesota· Built 1937· Gravity· 4 ft tall
Low Hazard Recreation State Government

Key Takeaway

Little Pine 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 4 ft (taller than 0.3% in MN)
Dam Length37 ft
Dam TypeGravity
Max Storage6.1K acre-ft
Normal Storage5.4K acre-ft
Surface Area225 acres
Drainage Area19 sq mi
Max Discharge360 cfs
Year Completed1937 (89 years old)
Year Modified1969
NID IDMN00242

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-EWR

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Little Pine Lake?

Little Pine 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 Little Pine Lake?

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

When was Little Pine Lake built?

Little Pine 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 Little Pine Lake?

Little Pine 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 Little Pine Lake?

Little Pine Lake has a dam height of 4 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 Little Pine Lake last inspected?

Little Pine 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.