| New York Tunnel Extension | |||
|---|---|---|---|
 North Bergen portal of the tunnels | |||
| Overview | |||
| Status | In operation | ||
| Owner | Amtrak | ||
| Locale | New York City Hudson County, New Jersey | ||
| Service | |||
| Type | Heavy rail, Commuter rail | ||
| System | Originally Pennsylvania Railroad now Amtrak, New Jersey Transit, Long Island Rail Road. | ||
| History | |||
| Opened | 1910 | ||
| Technical | |||
| Line length | 44 miles (71 km) (total main line trackage) | ||
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge | ||
| Electrification | 650 V DC third rail (1910–1933). 11,000 V AC overhead lines (1933-present) | ||
| |||
The New York Tunnel Extension (also New York Improvement and Tunnel Extension) is a combination of railroad tunnels and approaches from New Jersey and Long Island to Pennsylvania Station in Midtown Manhattan.
It was built by the Pennsylvania Railroad (PRR) at the beginning of the 20th century to improve railroad access throughout the greater New York City area,[1] and led to the line's then-new passenger facility, Pennsylvania Station.
- ^ American Society of Civil Engineers.; Gibbs, George. (1910). The New York tunnel extension of the Pennsylvania Railroad; station construction, road, track, yard equipment, electric traction, and locomotives. New York.
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