Eastman Treatment Lagoons Dam
Eastman Treatment Lagoons Dam is a dam located in Sullivan County, New Hampshire. It carries a Significant hazard potential classification.
About Eastman Treatment Lagoons Dam
The primary purpose of Eastman Treatment Lagoons Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Eastman Community Association (private).
The dam stands 18 feet tall and stretches 280 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 22 acre-feet.
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. The most recent inspection on record was 04/01/2022.
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Location
| State | New Hampshire |
| County | Sullivan |
| Nearest City | Grantham |
| Coordinates | 43.50809, -72.11039 |
Physical Characteristics
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 280 ft |
Storage & Hydraulics
| NID Storage | 22 acre-ft |
| Max Storage | 22 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 2 acres |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | EASTMAN COMMUNITY ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 04/01/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH03845 |
| Federal ID | NH03845 |
| More Info | State Dam Safety Program |