Wiswall Dam
Significant HazardFair ConditionEmergency Action Plan: Yes
Location
| State | New Hampshire |
| County | Strafford |
| Nearest City | DURHAM |
| River/Stream | LAMPREY RIVER |
| Coordinates | 43.10400, -70.96250 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 400 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 134 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 183 sq mi |
| Max Discharge | 12,630 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOWN OF DURHAM |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 06/02/2021 |
| Emergency Action Plan | Yes |