Clark Falls Dam is an earth dam located in New London County, Connecticut. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 11 ft11 ft tall and 185 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 Falls Dam
Clark Falls Dam is a dam in New London, Connecticut. The dam is owned by Clarks Falls Grist Mill LLC (private). It impounds the Wyassup Brook.
The dam stands 11 feet tall and stretches 185 feet across, creates a reservoir covering 7 acres, and collects water from a drainage area of 11 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/17/2022.
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Location
| State | Connecticut |
| County | New London |
| River/Stream | Wyassup Brook |
| Coordinates | 41.45648, -71.81845 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 185 ft |
Storage & Hydraulics
| Surface Area | 7 acres |
| Drainage Area | 11 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Clarks Falls Grist Mill LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/17/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT01165 |
| Federal ID | CT01165 |
| More Info | State Dam Safety Program |