Borgstrom-Erin Prairie Twn

Tributary to Willow River· St. Croix, Wisconsin· Built 1973· Earth· 29 ft tall
Low Hazard Flood Risk Reduction Private

Key Takeaway

Borgstrom-Erin Prairie Twn is classified as low hazard in Wisconsin. It was completed in 1973 and is 53 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 29 ft (taller than 79.3% in WI)
Dam Length540 ft
Dam TypeEarth
Max Storage230 acre-ft
Normal Storage22 acre-ft
Surface Area6 acres
Drainage Area2 sq mi
Max Discharge160 cfs
Year Completed1973 (53 years old)
NID IDWI00988

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: August 13, 2020
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Borgstrom, Eleanore

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Borgstrom-Erin Prairie Twn?

Borgstrom-Erin Prairie Twn 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 Borgstrom-Erin Prairie Twn?

Borgstrom-Erin Prairie Twn is owned by Borgstrom, Eleanore (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Borgstrom-Erin Prairie Twn built?

Borgstrom-Erin Prairie Twn was completed in 1973, making it 53 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 Borgstrom-Erin Prairie Twn?

Borgstrom-Erin Prairie Twn serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Borgstrom-Erin Prairie Twn?

Borgstrom-Erin Prairie Twn has a dam height of 29 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 Borgstrom-Erin Prairie Twn last inspected?

Borgstrom-Erin Prairie Twn was last inspected on August 13, 2020. 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.