Mossy Pond Dike
Mossy Pond Dike is an earth dam located in Worcester County, Massachusetts, built in 1847. It carries a Significant hazard potential classification and has a poor condition assessment.
About Mossy Pond Dike
The primary purpose of Mossy Pond Dike is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Clinton Housing Authority (local government). It impounds the South Meadow Brook near Clinton.
The dam stands 10 feet tall and stretches 200 feet across, creates a reservoir covering 139 acres, has a maximum storage capacity of 1,875 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1847, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 05/05/2022.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Clinton |
| River/Stream | South Meadow Brook |
| Coordinates | 42.41916, -71.69950 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Length | 200 ft |
| Year Completed | 1847 (179 years old) |
Storage & Hydraulics
| NID Storage | 1,875 acre-ft |
| Max Storage | 1,875 acre-ft |
| Surface Area | 139 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Clinton Housing Authority |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 05/05/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA03454 |
| Federal ID | MA00106S002 |
| More Info | State Dam Safety Program |