Charlestown Ww Lagoon Dam is an earth dam located in Sullivan County, New Hampshire, built in 1995. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 5 ft5 ft tall and 2,200 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 Charlestown Ww Lagoon Dam
Charlestown Ww Lagoon Dam is a dam in Sullivan, New Hampshire. The dam is owned by Town of Charlestown (local government). It impounds the Na near Charlestown.
The dam stands 5 feet tall and stretches 2,200 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 17 acre-feet. Completed in 1995, the structure is 31 years 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/21/2021.
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Location
| State | New Hampshire |
| County | Sullivan |
| Nearest City | Charlestown |
| River/Stream | Na |
| Coordinates | 43.22520, -72.43250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 5 ft |
| Dam Height | 5 ft |
| Dam Length | 2,200 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 17 acre-ft |
| Max Storage | 17 acre-ft |
| Normal Storage | 6 acre-ft |
| Surface Area | 5 acres |
Ownership & Safety
| Purpose | Other |
| Owner | Town of Charlestown |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/21/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH01461 |
| Federal ID | NH01461 |
| More Info | State Dam Safety Program |