Hammonasset Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Connecticut |
| County | New Haven |
| Nearest City | CLINTON |
| River/Stream | HAMMONASSET RIVER |
| Coordinates | 41.35815, -72.61253 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 63 ft |
| Dam Height | 63 ft |
| Dam Length | 447 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 4,300 acre-ft |
| Normal Storage | 4,300 acre-ft |
| Surface Area | 280 acres |
| Drainage Area | 19 sq mi |
| Max Discharge | 14,385 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | South Central CT RWA |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/16/2024 |
| Emergency Action Plan | Yes |