Poquonock Lake Dam
Poquonock Lake Dam is an earth dam located in New London County, Connecticut. It carries a Low hazard potential classification.
About Poquonock Lake Dam
The primary purpose of Poquonock Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Groton (local government). It impounds the Hatching House Brook.
The dam stands 10 feet tall and stretches 4 feet across, creates a reservoir covering 67 acres, has a storage capacity of 242 acre-feet, and collects water from a drainage area of 2 square miles.
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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Connecticut |
| County | New London |
| River/Stream | Hatching House Brook |
| Coordinates | 41.35765, -72.03452 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 4 ft |
Storage & Hydraulics
| NID Storage | 242 acre-ft |
| Normal Storage | 242 acre-ft |
| Surface Area | 67 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Groton |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00956 |
| Federal ID | CT00956 |
| More Info | State Dam Safety Program |