Central Artery Vent Building No. 4, Boston, MA

Part of Boston’s Central Artery project, construction of Vent Building No. 4 included fresh air intake and exhaust vent stacks for the new underground Central Artery, a 310-car parking garage, and renovations to the MBTA’s Haymarket Station. 

Client:   MassDOT
Designer:  Bechtel/Parsons/Brinkerhoff
Size:  65,000 SF

Project Features

  • New Vent Building consisting of three levels below grade and five levels above grade.
  • Deep excavation for concrete ductwork 120-ft below grade.
  • Slurry Wall pretrench and guidewall for excavation support and final substructure.
  • Drilled shaft foundations.
  • Sixteen reinforced concrete exhaust stacks with the tallest 125’ above street level.
  • Zinc-coated stainless steel “rain screen,” architectural precast panels, and cast stone façade.
  • Office space on upper floors and retail space at ground level.
  • New Precast concrete framed 310-car Parking Garage.
  • Garage partially constructed over the Haymarket MBTA station.
  • Caissons installed through Haymarket Station.
  • 24” storm drain installed in Hanover Street.
  • Renovated lobby and handicapped access in the interconnected Haymarket Station.
  • J/V with Walsh Northeast.

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