Pittsfield Sewage Lagoon Dam
Pittsfield Sewage Lagoon Dam is an earth dam located in Merrimack County, New Hampshire, built in 1979. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Pittsfield Sewage Lagoon Dam
Pittsfield Sewage Lagoon Dam is a dam in Merrimack, New Hampshire. The dam is owned by Town Of Pittsfield (local government). It impounds the Na near Pittsfield.
The dam stands 18 feet tall and stretches 1,800 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 38 acre-feet. Completed in 1979, the structure is 47 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/23/2020.
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Location
| State | New Hampshire |
| County | Merrimack |
| Nearest City | Pittsfield |
| River/Stream | Na |
| Coordinates | 43.29140, -71.32230 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,800 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 38 acre-ft |
| Max Storage | 38 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 5 acres |
Ownership & Safety
| Purpose | Other |
| Owner | TOWN OF PITTSFIELD |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/23/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH02884 |
| Federal ID | NH02884 |
| More Info | State Dam Safety Program |