The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston in the north to Washington, D.C., in the south, with major stops in Providence, New Haven, Stamford, New York City, Newark, Trenton, Philadelphia, Wilmington, and Baltimore. The NEC is roughly paralleled by Interstate 95 for most of its length. Carrying more than 2,200 trains a day, it is the busiest passenger rail line in the United States by ridership and service frequency.
A swing bridge is a movable bridge that can be rotated horizontally around a vertical axis. It has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span can then pivot horizontally as shown in the animated illustration to the right.
The BNSF Railway Bridge 5.1, also known as the St. Johns Railroad Bridge or the Willamette River Railroad Bridge, is a through truss railway bridge with a vertical lift that spans the Willamette River in Portland, Oregon, United States. Built by the Spokane, Portland and Seattle Railway (SP&S) and completed in 1908, it was originally a swing-span bridge, and its swing-span section was the longest in the world at the time. However, 81 years later the main span was converted from a swing-type to a vertical-lift type, in order to widen the navigation channel. The lift span is one of the highest and longest in the world. The bridge consists of five sections, with the two sections closest to the bank on each side fixed.
The Livingston Avenue Bridge is a railroad bridge over the Hudson River in New York connecting Albany and Rensselaer. The original structure was built in 1866 by the Hudson River Bridge Company but was replaced in 1901–02. A rotating swing bridge span allows large ships to proceed up the river.
The Delair Bridge is a railroad bridge with a vertical-lift section that crosses the Delaware River between Philadelphia, Pennsylvania, and Pennsauken Township, New Jersey, just south of the Betsy Ross Bridge. The two-track bridge is part of Conrail Shared Assets Operations and is jointly used by Norfolk Southern Railway and CSX Transportation freight trains, as well as by the New Jersey Transit Atlantic City Line service.
The Amtrak Susquehanna River Bridge is a deck truss bridge that carries the Amtrak Northeast Corridor line across the Susquehanna River between Havre de Grace and Perryville, Maryland. The 4,153.8-foot (1,266.1 m)-long two-track bridge has 17 fixed spans and one swing span across the river's navigation channel. It carries up to 114 daily passenger and freight trains.
The Quincy Rail Bridge is a truss bridge that carries a rail line across the Mississippi River between West Quincy, Missouri, and Quincy, Illinois, USA. It was originally constructed in 1868 for the Chicago, Burlington and Quincy Railroad, a predecessor of BNSF Railway.
The Spuyten Duyvil Bridge is a railroad swing bridge that spans the Spuyten Duyvil Creek between Manhattan and the Bronx, in New York City. The bridge is located at the northern tip of Manhattan where the Spuyten Duyvil Creek meets the Hudson River, approximately 1,000 feet (300 m) to the west of the Henry Hudson Bridge.
The Shellpot Branch is a former Pennsylvania Railroad/Penn Central through-freight railroad owned and operated by Norfolk Southern since its acquisition, along with CSX Transportation, of Conrail in 1999. The branch allows Norfolk Southern, since the opening of a new bridge in 2001, to bypass the city of Wilmington, Delaware and allows direct access to both the Port of Wilmington and the New Castle Secondary, which connects to the Delmarva Subdivision of the Delmarva Central Railroad that runs to Central Delaware, Maryland, and Virginia's Eastern Shore. Both ends of the branch connect with Amtrak's Northeast Corridor and, like all of the PRR's through-freight lines, was electrified from 1935 until the Conrail era. The line was originally built doubly tracked, but was subsequently converted to single track.
Burlington Northern Railroad Bridge 9.6 or BNSF Railway Bridge 9.6, also known as the Columbia River Railroad Bridge, is through truss railway bridge across the Columbia River, between Portland, Oregon, and Vancouver, Washington, owned and operated by BNSF Railway. Built by the Spokane, Portland and Seattle Railway (SP&S) and completed in 1908, it was the first bridge of any kind to be built across the lower Columbia River, preceding the first road bridge, the nearby Interstate Bridge, by a little more than eight years.
The Portal Bridge is a two-track rotating swing-span railroad bridge over the Hackensack River in Kearny and Secaucus, New Jersey, United States. It is on the Northeast Corridor just west of Secaucus Junction and east of the Sawtooth Bridges. Owned and operated by Amtrak and used extensively by NJ Transit, it is the busiest train span in the Western Hemisphere, carrying between 150,000 and 200,000 passengers per day on approximately 450 daily trains.
The Amtrak Old Saybrook–Old Lyme Bridge is a railroad bridge that carries the Northeast Corridor over the Connecticut River between Old Saybrook and Old Lyme, Connecticut. It is the southernmost crossing of the river before it reaches Long Island Sound. The bridge is a truss bridge with a bascule span, allowing boat traffic to pass through. The bridge is owned by Amtrak; it is used by Amtrak Northeast Regional and Acela intercity trains, Shore Line East local trains, and Providence and Worcester Railroad freight trains. A $1.3 billion replacement bridge began construction in 2024 with completion scheduled for 2031.
The Norwalk River Railroad Bridge is a swing bridge built in 1896 for the New York, New Haven and Hartford Railroad. It currently carries Amtrak and Metro-North Railroad trains over the Norwalk River.
Dock Bridge is a pair of vertical lift bridges carrying Amtrak, NJ Transit, and PATH trains across the Passaic River at Newark, Essex County and Harrison, Hudson County, New Jersey, United States. It is the seventh crossing from the river's mouth at Newark Bay and is 5.0 miles (8.0 km) upstream from it. Also known as the Amtrak Dock Vertical Lift, it is listed on the New Jersey and National Registers of Historic Places.
The Pequonnock River Railroad Bridge is a railroad drawbridge over the Pequonnock River in Bridgeport, Connecticut. Owned by the State of Connecticut and maintained and operated by both Amtrak and Metro-North Railroad, it is also referred to as Pequonnock River Bridge, PECK Bridge, and Undergrade Bridge 55.90. Currently the bridge is part of the Northeast Corridor line, carrying rail traffic of Amtrak and Metro-North, as well as freight trains operated by the Providence & Worcester Railroad.
Niantic River Bridge, also known as Amtrak Bascule Bridge No. 116.74, is a railroad bridge carrying Amtrak's Northeast Corridor line across the Niantic River between East Lyme and Waterford, Connecticut. It is a drawbridge with a bascule-type draw span. A new bridge was constructed in 2012 to replace the former span built in 1907. It opened on September 8, 2012. Related construction work finished in June 2013.
The Oregon Slough Railroad Bridge, also known as the BNSF Railway Bridge 8.8, is a swing-span, through truss bridge in Portland, Oregon, United States. Currently owned and operated by BNSF Railway, it crosses an anabranch of the Columbia River known as North Portland Harbor and historically as the Oregon Slough. The bridge's northern end is on Hayden Island, which, along with Tomahawk Island, forms the north shore of the channel. Completed in 1908, the two-track bridge is one of only two swing bridges surviving in Portland, which once had several bridges of that type, both for road and rail traffic. The only other remaining swing bridge in the Portland area is another rail-only bridge on the same line, BNSF's nearby Bridge 9.6, spanning the Columbia River.
The Mystic River Railroad Bridge is a railroad bridge carrying Amtrak's Northeast Corridor over the Mystic River in Mystic, Connecticut, between the towns of Groton and Stonington.
Shaw's Cove Bridge is a swing bridge in New London, Connecticut built in 1984, replacing a similar bridge built in 1913. The span carries railroad tracks used by Amtrak for their train along the Northeast Corridor while allowing boat traffic to go through.
