Shepard Street Dam
Shepard Street Dam is an earth dam located in Norfolk County, Massachusetts, built in 1956. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Shepard Street Dam
The primary purpose of Shepard Street Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Canton (local government). It impounds the Massapoag Brook near Canton.
The dam stands 11 feet tall and stretches 450 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 14 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1956, the structure is well into its service life at over 50 years old.
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 10/10/2023.
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Location
| State | Massachusetts |
| County | Norfolk |
| Nearest City | Canton |
| River/Stream | Massapoag Brook |
| Coordinates | 42.14657, -71.14755 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Length | 450 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 14 acre-ft |
| Max Storage | 14 acre-ft |
| Normal Storage | 6 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 11 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Canton |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/10/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA03104 |
| Federal ID | MA03104 |
| More Info | State Dam Safety Program |