Rockland Pond Dam is an earth dam located in New London County, Connecticut, built in 1900. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 400 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 Rockland Pond Dam
The primary purpose of Rockland Pond 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 Rand-whitney Realty LLC (private). It impounds the Oxoboxo Brook near Montville.
The dam stands 10 feet tall and stretches 400 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 92 acre-feet, and collects water from a drainage area of 9 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/09/2022.
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Location
| State | Connecticut |
| County | New London |
| Nearest City | Montville |
| River/Stream | Oxoboxo Brook |
| Coordinates | 41.45361, -72.13826 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 400 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 92 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 870 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Rand-whitney Realty LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/09/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00242 |
| Federal ID | CT00242 |
| More Info | State Dam Safety Program |