Upper Mystic Lake Dam
Significant HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Arlington |
| River/Stream | Mystic River, D/S of Aberjona River |
| Coordinates | 42.43072, -71.14849 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Length | 1,560 ft |
| Year Completed | 1860 (166 years old) |
Storage & Hydraulics
| NID Storage | 2,800 acre-ft |
| Max Storage | 2,800 acre-ft |
| Normal Storage | 1,300 acre-ft |
| Surface Area | 185 acres |
| Drainage Area | 27 sq mi |
| Max Discharge | 1,665 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/24/2022 |
| Emergency Action Plan | Yes |