Lake Of Isles Dam
Lake Of Isles Dam is an earth dam located in New London County, Connecticut, built in 1920. It carries a Significant hazard potential classification and has a fair condition assessment.
About Lake Of Isles Dam
The primary purpose of Lake Of Isles Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Of Isles Llc (private). It impounds the Lake Of Isles Broo near North Stonington.
The dam stands 15 feet tall and stretches 160 feet across, creates a reservoir covering 92 acres, has a storage capacity of 609 acre-feet, and collects water from a drainage area of 0 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 07/27/2016.
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Location
| State | Connecticut |
| County | New London |
| Nearest City | North Stonington |
| River/Stream | Lake Of Isles Broo |
| Coordinates | 41.49063, -71.94952 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 160 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 609 acre-ft |
| Normal Storage | 609 acre-ft |
| Surface Area | 92 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 98 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake of Isles LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/27/2016 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00572 |
| Federal ID | CT00572 |
| More Info | State Dam Safety Program |