Decew South Coventry Pond Dam is an earth dam located in Tolland County, Connecticut, built in 1900. It carries a Significant hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 149 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Decew South Coventry Pond Dam
The primary purpose of Decew South Coventry 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 Coventry (private). It impounds the Mill Brook near Mansfield.
The dam stands 11 feet tall and stretches 149 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1900, the structure is over a century 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. The most recent inspection on record was 04/03/1984. That was over 42 years ago.
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Location
| State | Connecticut |
| County | Tolland |
| Nearest City | Mansfield |
| River/Stream | Mill Brook |
| Coordinates | 41.76178, -72.27228 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 149 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 90 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Coventry |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 04/03/1984 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00524 |
| Federal ID | CT00524 |
| More Info | State Dam Safety Program |