Hanover Center Reservoir Dam
Hanover Center Reservoir Dam is an earth dam located in Grafton County, New Hampshire, built in 1962. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Hanover Center Reservoir Dam
The primary purpose of Hanover Center Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Town Of Hanover (local government). It impounds the North Branch Mink Brook near Hanover.
The dam stands 30 feet tall and stretches 943 feet across, creates a reservoir covering 28 acres, has a maximum storage capacity of 482 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1962, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 10/12/2021.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New Hampshire dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Grafton |
| Nearest City | Hanover |
| River/Stream | North Branch Mink Brook |
| Coordinates | 43.71516, -72.20041 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 943 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 482 acre-ft |
| Max Storage | 482 acre-ft |
| Normal Storage | 191 acre-ft |
| Surface Area | 28 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | TOWN OF HANOVER |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/12/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH00051 |
| Federal ID | NH00051 |
| More Info | State Dam Safety Program |