Stony Brook Reservoir Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Waltham |
| River/Stream | Stony Brook |
| Coordinates | 42.35530, -71.26484 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Length | 820 ft |
| Year Completed | 1887 (139 years old) |
Storage & Hydraulics
| NID Storage | 1,810 acre-ft |
| Max Storage | 1,810 acre-ft |
| Normal Storage | 1,312 acre-ft |
| Surface Area | 72 acres |
| Drainage Area | 23 sq mi |
| Max Discharge | 2,050 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Cambridge |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/02/2022 |
| Emergency Action Plan | Yes |