Osterberg Lake

Chippewa River-TR· Pope, Minnesota· Built 1979· Earth· 9 ft tall
Low Hazard Other State Government

Key Takeaway

Osterberg Lake is classified as low hazard in Minnesota. It was completed in 1979 and is 47 years old. Its primary use is other.

Physical Details

Dam Height 9 ft (taller than 25.1% in MN)
Dam Length212 ft
Dam TypeEarth
Max Storage360 acre-ft
Normal Storage340 acre-ft
Surface Area120 acres
Drainage Area12 sq mi
Max Discharge419 cfs
Year Completed1979 (47 years old)
NID IDMN00897

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, 2017
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

MNDNR-Fisheries

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Osterberg Lake?

Osterberg 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 Osterberg Lake?

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

When was Osterberg Lake built?

Osterberg Lake was completed in 1979, making it 47 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 Osterberg Lake?

Osterberg 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 Osterberg Lake?

Osterberg Lake has a dam height of 9 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 Osterberg Lake last inspected?

Osterberg Lake was last inspected on October 4, 2017. 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.