Island Lake Wpa

Pomme de Terre River-TR· Grant, Minnesota· Built 1990· Earth· 12 ft tall
Low Hazard Fish And Wildlife Pond Federal Government

Key Takeaway

Island Lake Wpa is classified as low hazard in Minnesota. It was completed in 1990 and is 36 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 12 ft (taller than 41.3% in MN)
Dam Length290 ft
Dam TypeEarth
Max Storage700 acre-ft
Normal Storage350 acre-ft
Surface Area100 acres
Drainage Area3 sq mi
Max Discharge160 cfs
Year Completed1990 (36 years old)
NID IDMN00386

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 Island Lake Wpa?

Island Lake Wpa 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 Island Lake Wpa?

Island Lake Wpa is owned by USFWS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Island Lake Wpa built?

Island Lake Wpa was completed in 1990, making it 36 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 Island Lake Wpa?

Island Lake Wpa 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 Island Lake Wpa?

Island Lake Wpa has a dam height of 12 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.