Pool No. 27

Thief River· Marshall, Minnesota· Built 1938· Earth· 16 ft tall
Low Hazard Fish And Wildlife Pond Federal Government

Key Takeaway

Pool No. 27 is classified as low hazard in Minnesota. It was completed in 1938 and is 88 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 16 ft (taller than 53.5% in MN)
Dam Length1,000 ft
Dam TypeEarth
Max Storage61.3K acre-ft
Normal Storage15.4K acre-ft
Max Discharge25,500 cfs
Year Completed1938 (88 years old)
NID IDMN00630

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
State Regulated: No

Ownership

USFWS

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Pool No. 27?

Pool No. 27 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 Pool No. 27?

Pool No. 27 is owned by USFWS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Pool No. 27 built?

Pool No. 27 was completed in 1938, making it 88 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 Pool No. 27?

Pool No. 27 serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Pool No. 27?

Pool No. 27 has a dam height of 16 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.

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.