Plimpton Pond Dam
Plimpton Pond Dam is a concrete dam located in Norfolk County, Massachusetts, built in 1925. It carries a Low hazard potential classification and has a poor condition assessment.
About Plimpton Pond Dam
The primary purpose of Plimpton Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Betty A. Golding (private). It impounds the Tributary Of Neponset River near Walpole.
The dam stands 19 feet tall and stretches 400 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 24 square miles. Completed in 1925, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/09/2023.
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Location
| State | Massachusetts |
| County | Norfolk |
| Nearest City | Walpole |
| River/Stream | Tributary Of Neponset River |
| Coordinates | 42.15974, -71.23139 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 19 ft |
| Dam Length | 400 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 24 sq mi |
| Max Discharge | 3,835 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Betty A. Golding |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/09/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00803 |
| Federal ID | MA00803 |
| More Info | State Dam Safety Program |