Wolfeboro Sewage Lagoon Dam
Wolfeboro Sewage Lagoon Dam is an earth dam located in Carroll County, New Hampshire, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.
About Wolfeboro Sewage Lagoon Dam
Wolfeboro Sewage Lagoon Dam is a dam in Carroll, New Hampshire. The dam is owned by Town Of Wolfeboro (local government). It impounds the Na near Wolfeboro.
The dam stands 45 feet tall and stretches 1,875 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 314 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 05/25/2021.
At 45 feet, this dam is taller than 91% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New Hampshire dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Carroll |
| Nearest City | Wolfeboro |
| River/Stream | Na |
| Coordinates | 43.60300, -71.22580 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 1,875 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 314 acre-ft |
| Max Storage | 314 acre-ft |
| Normal Storage | 273 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 306 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | TOWN OF WOLFEBORO |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 05/25/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH00542 |
| Federal ID | NH00542 |
| More Info | State Dam Safety Program |