Hanson

TR ALDER CREEK-NON NAV· Iron, Wisconsin· Built 1972· Earth· 23 ft tall

Key Takeaway

Hanson is classified as low hazard in Wisconsin. It was completed in 1972 and is 54 years old. Its primary use is fire protection.

Physical Details

Dam Height 23 ft (taller than 67% in WI)
Dam Length160 ft
Dam TypeEarth
Max Storage110 acre-ft
Normal Storage57 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Max Discharge20 cfs
Year Completed1972 (54 years old)
NID IDWI00492

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: Yes
Last Inspection: August 31, 2017
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Full Draw II, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hanson?

Hanson 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 Hanson?

Hanson is owned by Full Draw II, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hanson built?

Hanson was completed in 1972, making it 54 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 Hanson?

Hanson serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hanson?

Hanson has a dam height of 23 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 Hanson last inspected?

Hanson was last inspected on August 31, 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.