Rockingham Cnty Wastewtr Lagoon Dam
Rockingham Cnty Wastewtr Lagoon Dam is an earth dam located in Rockingham County, New Hampshire, built in 1990. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Rockingham Cnty Wastewtr Lagoon Dam
Rockingham Cnty Wastewtr Lagoon Dam is a dam in Rockingham, New Hampshire. The dam is owned by Rockingham County Complex (local government). It impounds the Na near Brentwood.
The dam stands 13 feet tall and stretches 1,920 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 63 acre-feet. Completed in 1990, the structure is 36 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 04/14/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Rockingham |
| Nearest City | Brentwood |
| River/Stream | Na |
| Coordinates | 43.01580, -71.05040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 1,920 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 63 acre-ft |
| Max Storage | 63 acre-ft |
| Normal Storage | 63 acre-ft |
| Surface Area | 5 acres |
Ownership & Safety
| Purpose | Other |
| Owner | ROCKINGHAM COUNTY COMPLEX |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/14/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH01027 |
| Federal ID | NH01027 |
| More Info | State Dam Safety Program |