Hollowbrook Dam
Hollowbrook Dam is a concrete dam located in Westchester County, New York, built in 1920. It carries a Significant hazard potential classification and has a poor condition assessment.
About Hollowbrook Dam
The primary purpose of Hollowbrook 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 City Of Peekskill (local government). It impounds the Peekskill Hollow Creek near Peekskill.
The dam stands 15 feet tall and stretches 75 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 36 acre-feet, and collects water from a drainage area of 47 square miles. Completed in 1920, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 01/06/2023.
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Location
| State | New York |
| County | Westchester |
| Nearest City | Peekskill |
| River/Stream | Peekskill Hollow Creek |
| Coordinates | 41.31500, -73.90750 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 75 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 36 acre-ft |
| Max Storage | 36 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 47 sq mi |
| Max Discharge | 1,240 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | CITY OF PEEKSKILL |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 01/06/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY14177 |
| Federal ID | NY14177 |
| More Info | State Dam Safety Program |