The line begins at the Hell Gate Bridge over the East River. This is a massive bridge, with a main span of 1,017 feet (310 m) and a total length of over 17,000 feet (3.2 mi; 5.2 km). Continuing south, the line is on a high-level elevated viaduct over Astoria and Interstate 278 (Grand Central Parkway). The line is then on an embankment until Sunnyside Junction, where Amtrak's Northeast Corridor line branches off. The line heads south and parallels Interstate 278 (Brooklyn-Queens Expressway) for a distance. This portion of the line was completely rebuilt in 2002. Now in the section of Elmhurst, the NYCR passes under several streets in a cut. An arched concrete viaduct over Queens Boulevard is followed by cuts and overpasses over streets in Maspeth, Queens.
After crossing under the Long Island Expressway (Interstate 495) and passing a few cemeteries, the line reaches Fresh Pond Junction. This is the main facility for shipping freight by rail in and out of New York City and Long Island. The New York and Atlantic Railway, which operates freights on the Long Island Rail Road under a privatized concession, has its main offices at Fresh Pond. CSX and PW also interchange freight with NYAR here.
CSX serves the line with one to three daily round trips, with trains based out of Oak Point Yard. The CSX trains bring general freight to the interchange with the New York and Atlantic Railway at Fresh Pond Junction, in Queens, and return with empties and container loads of solid waste. Providence and Worcester runs three trains per week carrying gravel from Cedar Hill Yard in New Haven, CT, to Fresh Pond.
The line was dedicated on March 9, 1917 by PRR President Samuel Rea and engineer Gustav Lindenthal.[4]: 295 A special train took the directors of the New Haven over the line on March 25, 1917, and at that time it was turned over to the New Haven for operation, though the Southern Division (freight-only) was not yet complete. Passenger service began on April 1, 1917, with the return of the Federal Express and the rerouting of two local trains. The Colonial began using it April 30, resulting in the first accident on the NYCR on August 20, 1917. Through freights to Bay Ridge began January 17, 1918, and the final work was completed August 7, 1918.[5]
The New York Connecting Railroad was electrified around 1917 and last extension completed in 1927 as an extension of the New Haven's system. The NYCR system encompassed 20 route miles (32 km) of track, and was electrified, like the New Haven, using overhead catenary at 11 kV, 25 Hz. The system received power from the New Haven Cos Cob Power Station and Consolidated Edison 201st generating station via the West Farms substation. Additional power was supplied from a 5 MW, 7 kVA, 11 kV, three-phase to single-phase converter installed at East New York. This unit was also operated in synchronous condenser mode for reactive power support. (SeeAmtrak's 25 Hz traction power system.)
Like the New Haven, the NYCR traction power was distributed using the 2 x 11 kV autotransformer topology. Two wires, the feeder and the catenary (often called the trolley wire), carried voltage of 11 kV to ground, but of opposite phase such that the feeder and catenary were 22 kV phase-to-phase. Six autotransformer stations, spaced an average of 3.8 miles apart along the line, converted power. Each station contained oil circuit breakers for both feeder and trolley buses, bus sectioning switches, and one [6] 3 MVA outdoor autotransformer.
The LIRR portion of the system (essentially everything to the south of Bowery Bay), along with the freight catenary from West Farms over Hell Gate to Bowery Bay, was removed in 1969-1970. By 1986 Amtrak, which had inherited the Connecting Railroad, changed the traction power system over to 60 Hz operation coincident with the Metro-North Railroad re-powering of the New Haven Line at 60 Hz and de-activation of the Cos Cob Power Station. The autotransformer architecture was retained, but the source of power changed from the Metro-North New Haven Line system to the Con Edison-supplied Van Nest Substation (40°50′31″N73°51′48″W / 40.8420°N 73.8633°W / 40.8420; -73.8633 (Van Nest Substation 46)).
Autotransformer Stations along the New York Connecting Railroad[7]
Morton, R.B. "Arrangements of Feeders and Equipment for Electrified Railways", American Institute of Electrical Engineers, Transactions of the, Vol 47, Issue 4, pp. 1297–1301, 1928. doi:10.1109/T-AIEE.1928.5055139Discusses both original and 1930s vintage PRR electrification systems along with NY Connecting RR system.
Railroads in italics meet the revenue specifications for Class I status, but are not technically Class I railroads due to being passenger-only railroads with no freight component.