Plymouth

MULLET· Sheboygan, Wisconsin· Built 1951· Gravity· 14 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Plymouth is classified as low hazard in Wisconsin. It was completed in 1951 and is 75 years old. Its primary use is recreation.

Physical Details

Dam Height 14 ft (taller than 40.1% in WI)
Dam Length150 ft
Dam TypeGravity
Max Storage110 acre-ft
Normal Storage70 acre-ft
Surface Area36 acres
Drainage Area59 sq mi
Max Discharge550 cfs
Year Completed1951 (75 years old)
NID IDWI00678

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: May 31, 2021
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

CITY OF PLYMOUTH

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Plymouth?

Plymouth 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 Plymouth?

Plymouth is owned by CITY OF PLYMOUTH (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Plymouth built?

Plymouth was completed in 1951, making it 75 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 Plymouth?

Plymouth 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 Plymouth?

Plymouth has a dam height of 14 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 Plymouth last inspected?

Plymouth was last inspected on May 31, 2021. 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.