Plymouth Reservoir Dam
Plymouth Reservoir Dam is a rockfill dam located in Chenango County, New York, built in 1827. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Plymouth Reservoir Dam
The primary purpose of Plymouth Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Plymouth Reservoir Association (private). It impounds the Reservoir Creek near Kirk.
The dam stands 12 feet tall and stretches 150 feet across, creates a reservoir covering 77 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1827, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/20/2023.
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Location
| State | New York |
| County | Chenango |
| Nearest City | Kirk |
| River/Stream | Reservoir Creek |
| Coordinates | 42.59044, -75.64694 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 150 ft |
| Year Completed | 1827 (199 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 320 acre-ft |
| Surface Area | 77 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 16 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | PLYMOUTH RESERVOIR ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY01481 |
| Federal ID | NY01481 |
| More Info | State Dam Safety Program |