Plymouth
Plymouth is a gravity dam located in Sheboygan County, Wisconsin, built in 1951. It carries a Low hazard potential classification and has a fair condition assessment.
About Plymouth
The primary purpose of Plymouth is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Plymouth (local government). It impounds the Mullet near Plymouth.
The dam stands 14 feet tall and stretches 150 feet across, creates a reservoir covering 36 acres, has a maximum storage capacity of 110 acre-feet, and collects water from a drainage area of 58 square miles. Completed in 1951, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/31/2021.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Sheboygan |
| Nearest City | Plymouth |
| River/Stream | Mullet |
| Coordinates | 43.74787, -87.97167 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 150 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 36 acres |
| Drainage Area | 58 sq mi |
| Max Discharge | 550 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | CITY OF PLYMOUTH |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/31/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00678 |
| Federal ID | WI00678 |
| More Info | State Dam Safety Program |