Beatties Mill Dam
Beatties Mill Dam is a masonry dam located in Passaic County, New Jersey, built in 1932. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Beatties Mill Dam
The primary purpose of Beatties Mill Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Passaic Valley Water Commission (public utility). It impounds the Passaic River near Little Falls.
The dam stands 12 feet tall and stretches 287 feet across, creates a reservoir covering 100 acres, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 762 square miles. Completed in 1932, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/25/2023.
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Location
| State | New Jersey |
| County | Passaic |
| Nearest City | Little Falls |
| River/Stream | Passaic River |
| Coordinates | 40.88410, -74.23440 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 287 ft |
| Year Completed | 1932 (94 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 762 sq mi |
| Max Discharge | 31,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Passaic Valley Water Commission |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/25/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00821 |
| Federal ID | NJ00821 |
| More Info | State Dam Safety Program |