Mono Pond Dam
Mono Pond Dam is an earth dam located in Tolland County, Connecticut, built in 1990. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Mono Pond Dam
Mono Pond Dam is a dam in Tolland, Connecticut. The dam is owned by Connecticut Deep (state). It impounds the Giffords Brook Tributary near Columbia.
The dam stands 13 feet tall and stretches 667 feet across, creates a reservoir covering 102 acres, and collects water from a drainage area of 1 square miles. Completed in 1990, the structure is 36 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/07/2020.
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Location
| State | Connecticut |
| County | Tolland |
| Nearest City | Columbia |
| River/Stream | Giffords Brook Tributary |
| Coordinates | 41.67936, -72.31068 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 667 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| Surface Area | 102 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Connecticut DEEP |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/07/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00258 |
| Federal ID | CT00258 |
| More Info | State Dam Safety Program |