Massachusetts Turnpike Authority

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Big Dig Project Background, Updates, Photos and Artist Gallery

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• 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

The Casting Basin Project Map

The difficult problem of crossing Boston's Fort Point Channel with a highway tunnel was solved in a very big way - in a place called "the casting basin."