Holtwood
Holtwood is a gravity dam located in Lancaster County, Pennsylvania, built in 1910. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Holtwood
The primary purpose of Holtwood 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 Bif Iii Holtwood Llc (public utility). It impounds the Susquehanna River near Boeckel Landing.
The dam stands 55 feet tall and stretches 3,075 feet across, creates a reservoir covering 2,400 acres, has a maximum storage capacity of 19,000 acre-feet, and collects water from a drainage area of 26,794 square miles. Completed in 1910, the structure is over a century old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 11/15/2021.
At 55 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Pennsylvania |
| County | Lancaster |
| Nearest City | Boeckel Landing |
| River/Stream | Susquehanna River |
| Coordinates | 39.82670, -76.33660 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 55 ft |
| Dam Height | 55 ft |
| Dam Length | 3,075 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 19,000 acre-ft |
| Max Storage | 19,000 acre-ft |
| Normal Storage | 19,000 acre-ft |
| Surface Area | 2,400 acres |
| Drainage Area | 26,794 sq mi |
| Max Discharge | 800,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | BIF III Holtwood LLC |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/15/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00854 |
| Federal ID | PA00854 |
| More Info | State Dam Safety Program |