Merrimack Dam
Low HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Lowell |
| River/Stream | Merrimack Canal |
| Coordinates | 42.64814, -71.31013 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 20 ft |
| Dam Height | 8 ft |
| Dam Length | 18 ft |
| Year Completed | 1847 (179 years old) |
Storage & Hydraulics
| NID Storage | 4,500 acre-ft |
| Max Storage | 4,500 acre-ft |
| Normal Storage | 4,500 acre-ft |
| Surface Area | 720 acres |
| Max Discharge | 440 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/15/2019 |
| Emergency Action Plan | Not Required |