Graves Dam
Graves Dam is a concrete dam located in New London County, Connecticut. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Graves Dam
The primary purpose of Graves Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dubin/estate Of Nancy Dubin (private). It impounds the Tenmile River.
The dam stands 11 feet tall and stretches 100 feet across, creates a reservoir covering 6 acres, and collects water from a drainage area of 325 square miles.
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 12/22/2022.
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Location
| State | Connecticut |
| County | New London |
| River/Stream | Tenmile River |
| Coordinates | 41.66135, -72.27841 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 100 ft |
Storage & Hydraulics
| Surface Area | 6 acres |
| Drainage Area | 325 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Dubin/Estate of Nancy Dubin |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/22/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT01010 |
| Federal ID | CT01010 |
| More Info | State Dam Safety Program |