Putnam Reservoir Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Connecticut |
| County | Fairfield |
| Nearest City | GREENWICH |
| River/Stream | HORSENECK BROOK |
| Coordinates | 41.08452, -73.64134 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 640 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 1,775 acre-ft |
| Max Storage | 1,775 acre-ft |
| Normal Storage | 1,775 acre-ft |
| Surface Area | 105 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,560 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Aquarion Water Company of Connecticut |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/16/2024 |
| Emergency Action Plan | Yes |