Taff

ROCKY RUN· Columbia, Wisconsin· Built 1954· Gravity· 10 ft tall
Low Hazard Recreation Private

Key Takeaway

Taff is classified as low hazard in Wisconsin. It was completed in 1954 and is 72 years old. Its primary use is recreation.

Physical Details

Dam Height 10 ft (taller than 17.3% in WI)
Dam Length300 ft
Dam TypeGravity
Max Storage70 acre-ft
Normal Storage40 acre-ft
Surface Area15 acres
Drainage Area2 sq mi
Max Discharge372 cfs
Year Completed1954 (72 years old)
NID IDWI00645

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: July 2, 2015
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Taff, Larry

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Taff?

Taff 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 Taff?

Taff is owned by Taff, Larry (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Taff built?

Taff was completed in 1954, making it 72 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 Taff?

Taff serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Taff?

Taff has a dam height of 10 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 Taff last inspected?

Taff was last inspected on July 2, 2015. 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.