Upper Mill Pond Dam
Upper Mill Pond Dam is a masonry dam located in Middlesex County, Connecticut, built in 1813. It carries a Low hazard potential classification and has a poor condition assessment.
About Upper Mill Pond Dam
The primary purpose of Upper Mill Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Clinton (private). It impounds the Indian River near Clinton.
The dam stands 8 feet tall and stretches 82 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1813, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/21/1984. That was over 41 years ago.
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Location
| State | Connecticut |
| County | Middlesex |
| Nearest City | Clinton |
| River/Stream | Indian River |
| Coordinates | 41.29115, -72.52808 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 82.5 ft |
| Year Completed | 1813 (213 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 39 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 66 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Clinton |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/21/1984 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00390 |
| Federal ID | CT00390 |
| More Info | State Dam Safety Program |