Tannery Pond Dam
Tannery Pond Dam is a concrete dam located in Merrimack County, New Hampshire, built in 1850. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Tannery Pond Dam
The primary purpose of Tannery Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Wilmot (local government). It impounds the Cassey Brook near Wilmot.
The dam stands 12 feet tall and stretches 160 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 96 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1850, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 06/07/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Merrimack |
| Nearest City | Wilmot |
| River/Stream | Cassey Brook |
| Coordinates | 43.41767, -71.90025 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 160 ft |
| Year Completed | 1850 (176 years old) |
Storage & Hydraulics
| NID Storage | 96 acre-ft |
| Max Storage | 96 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 1,100 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOWN OF WILMOT |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/07/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00257 |
| Federal ID | NH00257 |
| More Info | State Dam Safety Program |