The new US$100 million Leonard P. Zakim Bunker Hill Bridge is a 429m long, 55.8m wide cable-stayed structure that carries 10 traffic lanes over the Charles River. The main eight-lane roadway is cradled within two inverted Y towers. A secondary two-lane roadway is cantilevered 13.7m to one side of the main roadway, making the bridge asymmetric in cross section. The 227.1 main span superstructure is of steel composite design. With concrete box girder back spans, the overall layout becomes hybrid. The unusually wide deck is carried by cables spaced at 6.098m on centre in the main span and 4.573m on centre in the back spans. The bridge, which forms Boston's Central Artery/Tunnel (CA/T) Project's critical link over the Charles River just north of downtown Boston, is unique among cable-stayed structures in several respects. Its cable arrangement, slender inverted Y towers and a two-lane roadway cantilevered outside the eastern cable plane are among the bridge's most notable features.

  • Availability:
  • Corporate Authors:

    International Association for Bridge and Structural Engineering

    ETH-Honggerberg, Wolfgang-Pauli-Strasse 15
    Zurich 8093,   Switzerland  CH-8093
  • Authors:
    • Kumarasena, S
    • McCabe, R
    • Zoli, T
    • PATE, D
  • Publication Date: 2003-5


  • English

Media Info

  • Pagination: p. 90-4
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00962630
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Sep 3 2003 12:00AM