Upper Millpond Dam
Significant HazardSatisfactory ConditionEmergency Action Plan: No
Location
| State | Connecticut |
| County | New London |
| Nearest City | OLD LYME |
| River/Stream | MILL BROOK |
| Coordinates | 41.34327, -72.31068 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 120 ft |
| Year Completed | 1820 (206 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 413 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Richard O'Connor Trustee |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/27/2021 |
| Emergency Action Plan | No |