Timm Lake

Wood Lake Creek· Yellow Medicine, Minnesota· Built 1924· Gravity· 6 ft tall
Low Hazard Other Local Government

Key Takeaway

Timm Lake is classified as low hazard in Minnesota. It was completed in 1924 and is 102 years old. Its primary use is other.

Physical Details

Dam Height 6 ft (taller than 1.9% in MN)
Dam TypeGravity
Max Storage720 acre-ft
Normal Storage240 acre-ft
Surface Area260 acres
Drainage Area3 sq mi
Max Discharge175 cfs
Year Completed1924 (102 years old)
NID IDMN00153

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: November 14, 2018
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

County of Yellow Medicine

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Timm Lake?

Timm 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 Timm Lake?

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

When was Timm Lake built?

Timm Lake was completed in 1924, making it 102 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 Timm Lake?

Timm Lake serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Timm Lake?

Timm 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 Timm Lake last inspected?

Timm Lake was last inspected on November 14, 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.