Conway Lake Dam
Conway Lake Dam is an earth dam located in Carroll County, New Hampshire, built in 1763. It carries a Significant hazard potential classification and has a fair condition assessment.
About Conway Lake Dam
The primary purpose of Conway 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 Conway (local government). It impounds the Tr Saco River near Conway.
The dam stands 17 feet tall and stretches 200 feet across, creates a reservoir covering 1,321 acres, has a maximum storage capacity of 14,784 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1763, 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 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 06/25/2019.
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Location
| State | New Hampshire |
| County | Carroll |
| Nearest City | Conway |
| River/Stream | Tr Saco River |
| Coordinates | 43.98520, -71.05300 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 200 ft |
| Year Completed | 1763 (263 years old) |
Storage & Hydraulics
| NID Storage | 14,784 acre-ft |
| Max Storage | 14,784 acre-ft |
| Normal Storage | 7,300 acre-ft |
| Surface Area | 1,321 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 1,253 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOWN OF CONWAY |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 06/25/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH00318 |
| Federal ID | NH00318 |
| More Info | State Dam Safety Program |