Rogers Lake Dam
Rogers Lake Dam is an earth dam located in New London County, Connecticut, built in 1822. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Rogers Lake Dam
The primary purpose of Rogers Lake 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 Old Lyme (local government). It impounds the Mill Brook near Old Lyme.
The dam stands 7 feet tall and stretches 125 feet across, creates a reservoir covering 270 acres, has a maximum storage capacity of 1,275 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1822, 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 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 10/01/2024.
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Location
| State | Connecticut |
| County | New London |
| Nearest City | Old Lyme |
| River/Stream | Mill Brook |
| Coordinates | 41.35046, -72.30244 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 125 ft |
| Year Completed | 1822 (204 years old) |
Storage & Hydraulics
| NID Storage | 1,275 acre-ft |
| Max Storage | 1,275 acre-ft |
| Normal Storage | 600 acre-ft |
| Surface Area | 270 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 344 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Old Lyme |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/01/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00418 |
| Federal ID | CT00418 |
| More Info | State Dam Safety Program |