Antrim Sewage Lagoons Dam
Antrim Sewage Lagoons Dam is an earth dam located in Hillsborough, New Hampshire, built in 1978. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Antrim Sewage Lagoons Dam
Antrim Sewage Lagoons Dam is a dam in Hillsborough, New Hampshire. The dam is owned by Town Of Antrim (local government). It impounds the Na near Antrim.
The dam stands 13 feet tall and stretches 1,150 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 19 acre-feet. Completed in 1978, the structure is 48 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 04/30/2020.
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Location
| State | New Hampshire |
| County | Hillsborough |
| Nearest City | Antrim |
| River/Stream | Na |
| Coordinates | 43.02900, -71.93344 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 19 acre-ft |
| Max Storage | 19 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 2 acres |
Ownership & Safety
| Purpose | Other |
| Owner | TOWN OF ANTRIM |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/30/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH03714 |
| Federal ID | NH03714 |
| More Info | State Dam Safety Program |