Powell Marsh Wildlife Area

LITTLE BEAR CREEK· Iron, Wisconsin· Built 1971· Earth· 8 ft tall
Low Hazard Other State Government

Key Takeaway

Powell Marsh Wildlife Area is classified as low hazard in Wisconsin. It was completed in 1971 and is 55 years old. Its primary use is other.

Physical Details

Dam Height 8 ft (taller than 5.5% in WI)
Dam Length300 ft
Dam TypeEarth
Max Storage190 acre-ft
Normal Storage190 acre-ft
Surface Area64 acres
Year Completed1971 (55 years old)
NID IDWI10954

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: Yes
Regulatory Agency: WIDNR

Ownership

Wisconsin Department of Natural Resources

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Powell Marsh Wildlife Area?

Powell Marsh Wildlife Area 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 Powell Marsh Wildlife Area?

Powell Marsh Wildlife Area is owned by Wisconsin Department of Natural Resources (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Powell Marsh Wildlife Area built?

Powell Marsh Wildlife Area was completed in 1971, making it 55 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 Powell Marsh Wildlife Area?

Powell Marsh Wildlife Area 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 Powell Marsh Wildlife Area?

Powell Marsh Wildlife Area has a dam height of 8 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.