Clark Reservoir Dam is an earth dam located in Worcester County, Massachusetts, built in 1920. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 280 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Clark Reservoir Dam
The primary purpose of Clark Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Galaxy Links, Llc;sharon A. Kent;theodore W. Beauvais, Jr. and Christine L. Beauvais (private). It impounds the Tributary of Cold Spring Brook near Sutton.
The dam stands 16 feet tall and stretches 280 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 260 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1920, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/06/2021.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Sutton |
| River/Stream | Tributary of Cold Spring Brook |
| Coordinates | 42.14913, -71.74604 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Length | 280 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Galaxy Links, Llc;sharon A. Kent;theodore W. Beauvais, Jr. and Christine L. Beauvais |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 04/06/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MA00946 |
| Federal ID | MA00946 |
| More Info | State Dam Safety Program |