The Big Dig was a megaproject in Boston that rerouted the then elevated Central Artery of Interstate 93 that cut across Boston into the O'Neill Tunnel and built the Ted Williams Tunnel to extend Interstate 90 to Logan International Airport. Those two projects were the origin of the official name, the Central Artery/Tunnel Project. Additionally, the project constructed the Zakim Bunker Hill Bridge over the Charles River, created the Rose Kennedy Greenway in the space vacated by the previous I-93 elevated roadway, and funded more than a dozen projects to improve the region's public transportation system. Planning for the project began in 1982; the construction work was carried out between 1991 and 2006; and the project concluded on December 31, 2007. The project's general contractor was Bechtel and Parsons Brinckerhoff was the engineer, who worked as a consortium, both overseen by the Massachusetts Highway Department.
The New Jersey Turnpike (NJTP) is a system of controlled-access toll roads in the U.S. state of New Jersey. The turnpike is maintained by the New Jersey Turnpike Authority. The 117.2-mile (188.6 km) mainline's southern terminus is at the Delaware Memorial Bridge on I-295 in Pennsville. Its northern terminus is at an interchange with US 46 in Ridgefield Park. Construction of the mainline, from concept to completion, took a total of 22 months between 1950 and 1951. It was opened to traffic on November 5, 1951, between its southern terminus and exit 10.
The Pennsylvania Turnpike, sometimes shortened to Penna Turnpike or PA Turnpike, is a controlled-access toll road which is operated by the Pennsylvania Turnpike Commission (PTC) in Pennsylvania. It runs for 360 miles (580 km) across the state, connecting Pittsburgh and Philadelphia, and passes through four tunnels as it crosses the Appalachian Mountains. A component of the Interstate Highway System, it is part of Interstate 76 (I-76) between the Ohio state line and Valley Forge. I-70 runs concurrently with I-76 between New Stanton and Breezewood, Interstate 276 (I-276) between Valley Forge and Bristol Township, and I-95 from Bristol Township to the New Jersey state line.
Interstate 93 (I-93) is an Interstate Highway in the New England states of Massachusetts, New Hampshire, and Vermont in the United States. Spanning approximately 190 miles (310 km) along a north–south axis, it is one of three primary Interstate Highways located entirely within New England; the other two are I-89 and I-91. The largest cities along the route are Boston, and Manchester, New Hampshire; it also travels through the New Hampshire state capital of Concord.
The Massachusetts Turnpike is a controlled-access toll highway in the US state of Massachusetts that is maintained by the Massachusetts Department of Transportation (MassDOT). It is concurrent with the entirety of Interstate 90 (I-90) within the state, and is the longest Interstate Highway in Massachusetts, spanning 138 miles (222 km) along an east–west axis.
E-ZPass is an electronic toll collection system used on toll roads, toll bridges, and toll tunnels in the Eastern, Midwestern, and Southern United States. The E-ZPass Interagency Group (IAG) consists of member agencies in several states, which use the same technology and allow travelers to use the same transponder on toll roads throughout the network.
The Henry Hudson Bridge is a double-deck steel arch toll bridge in New York City across the Spuyten Duyvil Creek. It connects Spuyten Duyvil in the Bronx with Inwood in Manhattan to the south, via the Henry Hudson Parkway. On the Manhattan side, the parkway goes into Inwood Hill Park. Commercial vehicles are not permitted on this bridge or on the parkway in general.
Route 1A is a north–south state highway in Massachusetts, United States. It is an alternate route to U.S. 1 with three signed sections and two unsigned sections where the highway is concurrent with its parent. Due to the reconfiguration of tunnel interchanges brought on by the completion of the Big Dig, Route 1A is discontinuous in the downtown Boston area. Vehicles entering Downtown Boston via the Sumner Tunnel must take I-93 north to the exit for Government Center and make a U-turn to access the entrance ramp to I-93 south and vice versa.
The Maurice J. Tobin Memorial Bridge is a cantilever truss bridge that spans more than two miles (3.2 km) from Boston to Chelsea over the Mystic River in Massachusetts, United States. The bridge is the largest in New England. It is operated by the Massachusetts Department of Transportation and carries U.S. Route 1. It was built between 1948 and 1950 and opened to traffic on February 2, 1950, replacing the former Chelsea Bridge. The 36-foot (11 m)-wide roadway has three lanes of traffic on each of the two levels with northbound traffic on the lower level and southbound traffic on the upper level.
The Ted Williams Tunnel is a highway tunnel in Boston, Massachusetts. The third in the city to travel under Boston Harbor, with the Sumner Tunnel and the Callahan Tunnel, it carries the final segment of Interstate 90 from South Boston towards its eastern terminus at Route 1A in East Boston, slightly beyond Logan International Airport. The tunnel is named after the Boston Red Sox baseball legend Ted Williams.
The Sumner Tunnel is a road tunnel in Boston, Massachusetts, United States. It carries traffic under Boston Harbor in one direction, from Logan International Airport and Route 1A in East Boston. The tunnel originally deposited traffic at the west side of the North End, but with the completion of the Big Dig, it was modified to have two exits. One exit connects to I-93 northbound and downtown Boston near Haymarket Station. The other exit connects to Storrow Drive and Nashua St., connecting Cambridge via Route 28. Traffic headed for I-93 southbound and the Massachusetts Turnpike (I-90) westbound is normally routed to the Ted Williams Tunnel. It is managed by the Massachusetts Department of Transportation.
The Fort McHenry Tunnel is a four-tube, bi-directional tunnel that carries traffic on Interstate 95 (I-95) underneath the Baltimore Harbor. Named for nearby Fort McHenry, the tunnel is the lowest point in the Interstate Highway System under water.
Fast Lane was the original branding for the electronic toll collection system used on toll roads in Massachusetts, including the Massachusetts Turnpike, Sumner Tunnel, Ted Williams Tunnel, and Tobin Bridge. It was introduced in 1998, and later folded into the E-ZPass branding in 2012. Fast Lane transponders were fully interoperable with member agencies of the E-ZPass Interagency Group, however Fast Lane transponders afford users discounted tolls in some junctions that out-of-state users are not offered.
Interstate 476 (I-476) is a 132.1-mile (212.6 km) auxiliary Interstate Highway of I-76 in the U.S. state of Pennsylvania. The highway runs from I-95 near Chester north to I-81 near Scranton, serving as the primary north–south Interstate corridor through eastern Pennsylvania. It consists of both the 20-mile (32 km) Mid-County Expressway, locally referred to as the "Blue Route", through Delaware and Montgomery counties in the suburban Philadelphia area, and the tolled, 110.6-mile (178.0 km) Northeast Extension of the Pennsylvania Turnpike, which connects the Delaware Valley with the Lehigh Valley, the Pocono Mountains, and the Wyoming Valley to the north.
The Central Artery is a section of freeway in downtown Boston, Massachusetts; it is designated as Interstate 93, US 1 and Route 3.
The Claiborne Pell Bridge, commonly known as the Newport Bridge, is a suspension bridge operated by the Rhode Island Turnpike and Bridge Authority that spans the East Passage of the Narragansett Bay in Rhode Island. The bridge, part of RI 138, connects the city of Newport on Aquidneck Island and the Town of Jamestown on Conanicut Island, and is named for longtime Rhode Island U.S. senator Claiborne Pell who lived in Newport. The Pell Bridge is in turn connected to the mainland by the Jamestown Verrazzano Bridge.
The Ohio River Bridges Project (ORBP) was a 2002–2016 transportation project in the Louisville metropolitan area primarily involving the construction of two Interstate highway bridges across the Ohio River and the reconstruction of the Kennedy Interchange near downtown Louisville.
The Big Dig ceiling collapse occurred on July 10, 2006, when a concrete ceiling panel and debris weighing 26 short tons and measuring 20 by 40 feet fell in Boston's Fort Point Channel Tunnel. The panel fell on a car traveling on the two-lane ramp connecting northbound I-93 to eastbound I-90 in South Boston, killing a passenger and injuring the driver. Investigation and repair of the collapse caused a section of the Big Dig project to be closed for almost a full year, causing chronic traffic backups.
The Massachusetts Department of Transportation (MassDOT) oversees roads, public transit, aeronautics, and transportation licensing and registration in the US state of Massachusetts. It was created on November 1, 2009, by the 186th Session of the Massachusetts General Court upon enactment of the 2009 Transportation Reform Act.
U.S. Route 1 (US 1) is a major north–south U.S. Route in the state of Massachusetts, traveling through Essex, Middlesex, Suffolk, Norfolk, and Bristol counties. The portion of US 1 south of Boston is also known as the Boston–Providence Turnpike, Washington Street, or the Norfolk and Bristol Turnpike, and portions north of Boston are known as the Northeast Expressway and the Newburyport Turnpike.
Route 1A north
