Stiles Pond Dam is an earth dam located in New London County, Connecticut, built in 1870. It carries a Significant hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 120 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 Stiles Pond Dam
The primary purpose of Stiles Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Conn. Trails Council of Girl Scouts (private). It impounds the Tenmile River near Lebanon.
The dam stands 20 feet tall and stretches 120 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 170 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1870, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/03/2005. That was over 21 years ago.
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Location
| State | Connecticut |
| County | New London |
| Nearest City | Lebanon |
| River/Stream | Tenmile River |
| Coordinates | 41.65035, -72.28068 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 120 ft |
| Year Completed | 1870 (156 years old) |
Storage & Hydraulics
| NID Storage | 179 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 179 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 230 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Conn. Trails Council of Girl Scouts |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 06/03/2005 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00552 |
| Federal ID | CT00552 |
| More Info | State Dam Safety Program |