Massachusetts Turnpike Authority

Traffic, Tolls, Maps, Service & Tourist Centers, Park & Ride, Emergency Services, Truck Regulations, and Tourist Destinations

News from the Turnpike Authority and our Meeting Calendar

Big Dig Project Background, Updates, Photos and Artist Gallery

Turnpike History, Financial Information, Turnpike Regulations and Leadership

Contracts and Business Opportunities with the Turnpike

E-mail Form, Our Address and Phone Numbers

• Project Updates
• Parks and Urban Restoration
• Multimedia and Publications
• Project Background
  • Tunnels and Bridges
  • Facts & Figures
  • Archaeology
  • Environmental
  • Engineering Marvels
    • Slurry Walls
    • Supporting the Elevated Highway
    • The Casting Basin
    • Tunnel Jacking
    • The Operations Control Center
  • Mitigation
  • Equipment
  • History

South Boston Tunnel

As part of the Central Artery/Tunnel Project, the Massachusetts Turnpike (I-90) extends from its current eastern end, through a tunnel beneath South Boston to the Ted Williams Tunnel, Logan Airport, and East Boston.