Tamarac Lake Outlet

Badger Creek· Polk, Minnesota· Built 1930· Gravity· 7 ft tall
Low Hazard Recreation State Government

Key Takeaway

Tamarac Lake Outlet is classified as low hazard in Minnesota. It was completed in 1930 and is 96 years old. Its primary use is recreation.

Physical Details

Dam Height 7 ft (taller than 8.5% in MN)
Dam Length20 ft
Dam TypeGravity
Max Storage3.0K acre-ft
Normal Storage2.3K acre-ft
Surface Area356 acres
Drainage Area14 sq mi
Max Discharge100 cfs
Year Completed1930 (96 years old)
NID IDMN00225

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 1, 2018
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

MNDNR

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Tamarac Lake Outlet?

Tamarac 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 Tamarac Lake Outlet?

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

When was Tamarac Lake Outlet built?

Tamarac Lake Outlet was completed in 1930, making it 96 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 Tamarac Lake Outlet?

Tamarac Lake Outlet 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 Tamarac Lake Outlet?

Tamarac 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.

When was Tamarac Lake Outlet last inspected?

Tamarac Lake Outlet was last inspected on August 1, 2018. 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.