Thomas P. O'Neill Jr. Tunnel
Encyclopedia
The Thomas P. "Tip" O'Neill, Jr.
Tip O'Neill
Thomas Phillip "Tip" O'Neill, Jr. was an American politician. O'Neill was an outspoken liberal Democrat and influential member of the U.S. Congress, serving in the House of Representatives for 34 years and representing two congressional districts in Massachusetts...

 Tunnel
is a highway tunnel built as part of the Big Dig in Boston, Massachusetts. It carries the Central Artery
Central Artery
The John F. Fitzgerald Expressway, known locally as the Central Artery, is a section of freeway in downtown Boston, Massachusetts, designated as Interstate 93, U.S. Route 1 and Route 3. It was initially constructed in the 1950s as a partly elevated and partly tunneled divided highway...

 underneath downtown Boston, and is numbered as Interstate 93
Interstate 93
Interstate 93 is an Interstate Highway in the New England section of the United States. Its southern terminus is in Canton, Massachusetts, in the Boston metropolitan area, at Interstate 95; its northern terminus is near St. Johnsbury, Vermont, at Interstate 91...

, U.S. Route 1
U.S. Route 1
U.S. Route 1 is a major north–south U.S. Highway that serves the East Coast of the United States. It runs 2,377 miles from Fort Kent, Maine at the Canadian border south to Key West, Florida. U.S. 1 generally parallels Interstate 95, though it is significantly farther west between...

, and Route 3. It roughly follows the route of the old elevated Central Artery, though the northbound entrance, at the corner of Kneeland St. and Atlantic Ave., is somewhat east of the southbound exit (at Kneeland and Albany St.) to allow for a reconfigured interchange with the Massachusetts Turnpike
Massachusetts Turnpike
The Massachusetts Turnpike is the easternmost stretch of Interstate 90. The Turnpike begins at the western border of Massachusetts in West Stockbridge connecting with the Berkshire Connector portion of the New York State Thruway...

. It runs from the Zakim Bunker Hill Bridge
Zakim Bunker Hill Bridge
The Leonard P. Zakim Bunker Hill Memorial Bridge is a cable-stayed bridge across the Charles River in Boston, Massachusetts. It is a replacement for the Charlestown High Bridge, an older truss bridge constructed in the 1950s, and is the world's widest cable-stayed bridge...

 at its north portal to Boston's Chinatown at its south portal.

History

The O'Neill Tunnel was and remains quite controversial due to the high price of the construction and what was found to be mediocre workmanship. The deep side walls of the tunnel (over 120 feet (36.6 m) in some areas) had to be constructed using slurry wall
Slurry wall
A slurry wall is a technique used to build reinforced-concrete walls in areas of soft earth close to open water or with a high ground water table. This technique is typically used to build diaphragm walls surrounding tunnels and open cuts, and to lay foundations.A trench is excavated to create a...

 construction. The tunnel is notoriously leaky due to the high groundwater levels in the area and the improper construction of the slurry walls, a situation that has led to additional controversy in the wake of the considerable controversy over massive cost overruns and corruption allegations during the project.

Upon its completion in 2006, Massachusetts Governor Mitt Romney
Mitt Romney
Willard Mitt Romney is an American businessman and politician. He was the 70th Governor of Massachusetts from 2003 to 2007 and is a candidate for the 2012 Republican Party presidential nomination.The son of George W...

 proposed to name it the Liberty Tunnel. The state legislature and the Massachusetts delegation to Congress
United States Congress
The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

 (all of whom were Democrats) opposed the choice, and it was officially named after O'Neill (a longtime Speaker of the United States House of Representatives
Speaker of the United States House of Representatives
The Speaker of the United States House of Representatives, or Speaker of the House, is the presiding officer of the United States House of Representatives...

) by Section 1930 of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), which was passed by Congress and signed by then-President George W. Bush
George W. Bush
George Walker Bush is an American politician who served as the 43rd President of the United States, from 2001 to 2009. Before that, he was the 46th Governor of Texas, having served from 1995 to 2000....

 in 2005.

Exit list

  • Northbound
    • Exit 23 -- Government Center
    • Exit 26 -- Storrow Drive
      Storrow Drive
      Storrow Drive is a major cross town expressway in Boston, Massachusetts, running south and west from Leverett Circle along the Charles River. It is a parkway—it is restricted to cars; trucks and buses are not permitted on it...



There is no direct access to Logan Airport within the northbound tunnel; airport traffic must get off at Exit 20 in the South Bay area to take Interstate 90
Interstate 90
Interstate 90 is the longest Interstate Highway in the United States at . It is the northernmost coast-to-coast interstate, and parallels US 20 for the most part. Its western terminus is in Seattle, at Edgar Martinez Drive S. near Safeco Field and CenturyLink Field, and its eastern terminus is in...

 eastbound.
  • Southbound
    • Exit 24B & A
      • 24B -- Route 1A
        Massachusetts Route 1A
        Route 1A is a south–north state highway in Massachusetts. 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...

         (Callahan Tunnel) North, Logan Airport
      • 24A -- Government Center
    • Exit 23—Purchase Street, South Station
      South Station
      South Station, New England's second-largest transportation center , located at the intersection of Atlantic Avenue and Summer Street in Dewey Square, Boston, Massachusetts, is the largest train station and intercity bus terminal in Greater Boston, a prominent train station in the northeastern...

    • Exit 20—Albany Street, Massachusetts Turnpike
      Massachusetts Turnpike
      The Massachusetts Turnpike is the easternmost stretch of Interstate 90. The Turnpike begins at the western border of Massachusetts in West Stockbridge connecting with the Berkshire Connector portion of the New York State Thruway...

       (Interstate 90
      Interstate 90
      Interstate 90 is the longest Interstate Highway in the United States at . It is the northernmost coast-to-coast interstate, and parallels US 20 for the most part. Its western terminus is in Seattle, at Edgar Martinez Drive S. near Safeco Field and CenturyLink Field, and its eastern terminus is in...

      ) West


Access to Cambridge is provided by Exit 26, which feeds the Leverett Circle Connector bridge from Somerville
Somerville, Massachusetts
Somerville is a city in Middlesex County, Massachusetts, United States, located just north of Boston. As of the 2010 census, the city had a total population of 75,754 and was the most densely populated municipality in New England. It is also the 17th most densely populated incorporated place in...

 to Storrow Drive.

See also

  • Zakim Bunker Hill Bridge
    Zakim Bunker Hill Bridge
    The Leonard P. Zakim Bunker Hill Memorial Bridge is a cable-stayed bridge across the Charles River in Boston, Massachusetts. It is a replacement for the Charlestown High Bridge, an older truss bridge constructed in the 1950s, and is the world's widest cable-stayed bridge...

  • Ted Williams Tunnel
    Ted Williams Tunnel
    The Ted Williams Tunnel, also known as the Williams Tunnel, is the name of the third highway tunnel under Boston Harbor in Boston, Massachusetts, the Sumner and Callahan Tunnels being the other two...

  • Callahan Tunnel
    Callahan Tunnel
    The Callahan Tunnel, officially the Lieutenant William F. Callahan Tunnel is one of four 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...

  • Sumner Tunnel
    Sumner Tunnel
    The Sumner Tunnel is a road tunnel in Boston, Massachusetts, USA. 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,...

  • Dewey Square Tunnel
    Dewey Square Tunnel
    The Dewey Square Tunnel in Boston, Massachusetts, is part of Interstate 93 , running under the heart of the city's financial district, including Dewey Square...

  • Big Dig (Boston, Massachusetts)
  • Massachusetts Turnpike
    Massachusetts Turnpike
    The Massachusetts Turnpike is the easternmost stretch of Interstate 90. The Turnpike begins at the western border of Massachusetts in West Stockbridge connecting with the Berkshire Connector portion of the New York State Thruway...

  • Interstate 93
    Interstate 93
    Interstate 93 is an Interstate Highway in the New England section of the United States. Its southern terminus is in Canton, Massachusetts, in the Boston metropolitan area, at Interstate 95; its northern terminus is near St. Johnsbury, Vermont, at Interstate 91...

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