Great Pond Dam is an earth dam located in Hartford County, Connecticut, built in 1930. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 600 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 Great Pond Dam
The primary purpose of Great Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Connecticut Deep (state). It impounds the Great Pond Brook near Simsbury.
The dam stands 9 feet tall and stretches 600 feet across, creates a reservoir covering 31 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1930, the structure is well-established, with more than 75 years 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. An emergency action plan is in place for this dam. The most recent inspection on record was 12/04/1985. That was over 40 years ago.
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Location
| State | Connecticut |
| County | Hartford |
| Nearest City | Simsbury |
| River/Stream | Great Pond Brook |
| Coordinates | 41.89759, -72.83226 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 600 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 31 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 27 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Connecticut Deep |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/04/1985 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00276 |
| Federal ID | CT00276 |
| More Info | State Dam Safety Program |