Glenville Pond Dam is a masonry dam located in Tolland County, Connecticut, built in 1842. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 240 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Glenville Pond Dam
The primary purpose of Glenville 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 Stafford (local government). It impounds the Furnace Brook near Stafford.
The dam stands 19 feet tall and stretches 240 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 110 acre-feet, and collects water from a drainage area of 15 square miles. Completed in 1842, the structure is one of the older dams in the region, with over a century and a half of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/02/2024.
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Location
| State | Connecticut |
| County | Tolland |
| Nearest City | Stafford |
| River/Stream | Furnace Brook |
| Coordinates | 41.96798, -72.29749 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 240 ft |
| Year Completed | 1842 (184 years old) |
Storage & Hydraulics
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Normal Storage | 56 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 1,200 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Stafford |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/02/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00334 |
| Federal ID | CT00334 |
| More Info | State Dam Safety Program |