Weston Mill Pond Dam is a masonry dam located in Middlesex County, New Jersey, built in 1916. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 309 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 Weston Mill Pond Dam
The primary purpose of Weston Mill 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 New Brunswick City (local government). It impounds the Lawrence Brook near New Brunswick.
The dam stands 16 feet tall and stretches 309 feet across, creates a reservoir covering 162 acres, has a maximum storage capacity of 1,965 acre-feet, and collects water from a drainage area of 42 square miles. Completed in 1916, 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 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 12/15/2023.
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Location
| State | New Jersey |
| County | Middlesex |
| Nearest City | New Brunswick |
| River/Stream | Lawrence Brook |
| Coordinates | 40.48297, -74.41240 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 309 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 1,965 acre-ft |
| Max Storage | 1,965 acre-ft |
| Normal Storage | 1,060 acre-ft |
| Surface Area | 162 acres |
| Drainage Area | 42 sq mi |
| Max Discharge | 1,645 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | New Brunswick City |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 12/15/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00164 |
| Federal ID | NJ00164 |
| More Info | State Dam Safety Program |