The Central Artery/Tunnel Project (CA/T), commonly known as the Big Dig, was a megaproject in Boston that rerouted the Central Artery of Interstate 93 (I-93), the chief highway through the heart of the city, into the 1.5-mile (2.4 km) tunnel named the Thomas P. O'Neill Jr. Tunnel. The project also included the construction of the Ted Williams Tunnel, the Leonard P. Zakim Bunker Hill Memorial Bridge over the Charles River, and the Rose Kennedy Greenway in the space vacated by the previous I-93 elevated roadway. Initially, the plan was also to include a rail connection between Boston's two major train terminals. Planning began in 1982; the construction work was carried out between 1991 and 2006; and the project concluded on December 31, 2007, when the partnership between the program manager and the Massachusetts Turnpike Authority ended.
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 being I-89 and I-91. The largest cities along the route are Boston, Massachusetts, and Manchester, New Hampshire; it also travels through the New Hampshire state capital of Concord.
The Massachusetts Turnpike is a toll highway in the U.S. state of Massachusetts that is maintained by the Massachusetts Department of Transportation (MassDOT). The turnpike begins at the New York state line in West Stockbridge, linking with the Berkshire Connector portion of the New York State Thruway. Spanning 138 miles (222 km) along an east–west axis, it is the turnpike serving Interstate 90 (I-90). The turnpike is the longest Interstate Highway in Massachusetts, while I-90 in full is the longest Interstate Highway in the United States.
Back Bay is an officially-recognized neighborhood of Boston, Massachusetts, built on reclaimed land in the Charles River basin. Construction began in 1859, as the demand for luxury housing exceeded the availability in the city at the time, and the area was fully built by around 1900. It is most famous for its rows of Victorian brownstone homes—considered one of the best preserved examples of 19th-century urban design in the United States—as well as numerous architecturally significant individual buildings, and cultural institutions such as the Boston Public Library, and Boston Architectural College. Initially conceived as a residential-only area, commercial buildings were permitted from around 1890, and Back Bay now features many office buildings, including the John Hancock Tower, Boston's tallest skyscraper. It is also considered a fashionable shopping destination and home to several major hotels.
Copley Place is an enclosed shopping mall within the mixed-use Copley Square in the Back Bay neighborhood of Boston, Massachusetts. It features direct indoor connections to several nearby destinations including four office towers, and the Boston Marriott Copley Place and Sheraton Boston hotels. The mall is connected to the Prudential Center shopping mall via a skybridge over Huntington Avenue.
The Prudential Tower, also known as the Prudential Building or, colloquially, The Pru, is an International Style skyscraper in Boston, Massachusetts. The building, a part of the Prudential Center complex, currently stands as the 2nd-tallest building in Boston, behind 200 Clarendon Street, formerly the John Hancock Tower. The Prudential Tower was designed by Charles Luckman and Associates for Prudential Insurance. Completed in 1964, the building is 749 feet (228 m) tall, with 52 floors, and is tied with others as the 114th-tallest in the United States. It contains 1.2 million sq ft (110,000 m2) of commercial and retail space. Including its radio mast, the tower stands as the tallest building in Boston, rising to 907 feet (276 m) in height.
The Lieutenant William F. Callahan Jr. Tunnel is one of four tunnels, and one of three road tunnels, beneath Boston Harbor in Boston, Massachusetts. It carries motor vehicles from the North End to Logan International Airport and Route 1A in East Boston. Ordinarily, this tunnel is only used to carry traffic out of the city, and with the completion of the Big Dig it only collects traffic from I-93 southbound and downtown Boston; northbound traffic uses the parallel Sumner Tunnel. As of 2016, a toll of $1.50 is charged for non-commercial two-axle vehicles with a Massachusetts E-ZPass, while non-Massachusetts E-ZPass holders are charged $1.75. Vehicles without E-ZPass are charged $2.05 through MassDOT's Pay By Plate MA program. For residents of certain Boston ZIP codes, a discount is in effect using an E-ZPass transponder, costing $0.20.
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 Subway Station. The other exit connects to Storrow Drive and Nashua St. with connections to Cambridge, MA via Rt. 28 north. Traffic headed for I-93 southbound and the Massachusetts Turnpike (I-90) westbound is normally routed to the Ted Williams Tunnel.
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.
Hynes Convention Center station is an underground light rail station on the Massachusetts Bay Transportation Authority (MBTA) Green Line. It is located at the intersection of Newbury Street and Massachusetts Avenue near the western end of the Back Bay neighborhood of Boston, Massachusetts. The station is named for the Hynes Convention Center, which is located about 700 feet (210 m) to the east along Boylston Street. It has two side platforms serving the two tracks of the Boylston Street subway, which are used by the Green Line B branch, C branch, and D branch. The main entrance to the station from Massachusetts Avenue leads to a fare lobby under the 360 Newbury Street building.
The Central Artery is a section of freeway in downtown Boston, Massachusetts; it is designated as Interstate 93, US 1 and Route 3.
The Thomas Crown Affair is a 1968 American neo-noir heist film directed and produced by Norman Jewison and starring Steve McQueen and Faye Dunaway. It was nominated for two Academy Awards, winning Best Original Song for Michel Legrand's "The Windmills of Your Mind". A remake was released in 1999, and a second remake was in development stages as of 2016.
The John B. Hynes Veterans Memorial Convention Center located in Boston was built in 1988 from a design by architects Kallmann, McKinnell & Wood. It replaced the John B. Hynes Memorial Auditorium, also a convention center, built in 1963 during the Massachusetts Turnpike expansion from Route 128 to the Central Artery, which was regarded as "ungainly". The 1988 design "attempted to relate in scale and materials to its Back Bay setting, adopting granite and setbacks... The severe gray interior is reminiscent of an early 20th-century German railroad station". The Center is named after former Boston mayor John Hynes.
The Big Dig ceiling collapse occurred on July 10, 2006, when a concrete ceiling panel and debris weighing 26 short tons (24,000 kg) 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 South Bay Interchange is a massive interchange in downtown Boston, Massachusetts, in the US. The interchange consists of Interstate 90, the Mass Pike Extension, and the Interstate 93 concurrency with US 1 and MA 3 south of the Thomas P. O'Neill Jr. Tunnel.
101 Clarendon Street, also known as Columbus Center, was a proposed skyscraper planned for Boston, Massachusetts. If completed, it would have stood as the 25th-tallest building in Boston. Continuing on the trend established by the Prudential Tower in 1964, the completed building would have concealed more of the Massachusetts Turnpike (I-90) by utilizing air rights above it. The location would have been above the turnpike, directly to the east of Back Bay station and south of Copley Square in the Back Bay neighborhood of Boston. The project would have "united the city’s Back Bay and South End neighborhoods."
In the U.S. state of Massachusetts, U.S. Route 1 is a major north–south highway through Boston. 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 the city are known as the Northeast Expressway and the Newburyport Turnpike.
Allan Robert McKinnon was a Massachusetts politician who served as a member of the Massachusetts State Senate from 1971 to 1985, Deputy Secretary of Transportation from 1985 to 1988, and Chairman of the Massachusetts Turnpike Authority from 1988 to 1996. He retired in 1996.
The architecture of Boston is a robust combination of old and new architecture. As one of the oldest cities in North America, Boston, Massachusetts has accumulated buildings and structures ranging from the 17th-century to the present day, having evolved from a small port town to a large cosmopolitan center for education, industry, finance, and technology. The city is known for its granite buildings stemming from its early days. It is also known for being one of the origins of Federal Architecture.
I-90 / Mass Pike 
