Lincoln Sewage Lagoon Dam
Lincoln Sewage Lagoon Dam is an earth dam located in Grafton County, New Hampshire, built in 1975. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Lincoln Sewage Lagoon Dam
Lincoln Sewage Lagoon Dam is a dam in Grafton, New Hampshire. The dam is owned by Town Of Lincoln (local government). It impounds the Na near Lincoln.
The dam stands 19 feet tall and stretches 2,360 feet across, creates a reservoir covering 10 acres, and has a maximum storage capacity of 126 acre-feet. Completed in 1975, the structure is well into its service life at over 50 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 07/25/2022.
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Location
| State | New Hampshire |
| County | Grafton |
| Nearest City | Lincoln |
| River/Stream | Na |
| Coordinates | 44.03720, -71.67410 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 2,360 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 126 acre-ft |
| Max Storage | 126 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 10 acres |
Ownership & Safety
| Purpose | Other |
| Owner | TOWN OF LINCOLN |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/25/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00590 |
| Federal ID | NH00590 |
| More Info | State Dam Safety Program |