BIG LIFT SIMPLIFIES JOB

It is described how with two 650-ton lifts, two movable leaves were installed in only a few hours in the construction of a bascule bridge over the busy Elizabeth River in Virginia. The leaves would have taken months to fabricate in-place. It is noted that the tolerances required on the tight-fitting steel-framed leaves would have made it difficult to piece together the two 220 x 78-ft structures in place, and converting the middle of the Elizabeth River into a construction site would have caused serious disruptions to naval and commercial traffic. Another challenging feature of the new bridge was the building of the deepwater cofferdams for its 100 x 50-ft main piers and 65 x 20-ft river piers. Details of the installation are briefly summarized.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08919526
• Corporate Authors:

  McGraw-Hill, Incorporated

  330 West 42nd Street
  New York, NY  United States  10036
• Publication Date: 1990-4-19

Media Info

• Pagination: p. 19
• Serial:
  • ENR
  • Volume: 224
  • Issue Number: 16
  • Publisher: McGraw-Hill, Incorporated
  • ISSN: 0891-9526

Subject/Index Terms

• TRT Terms: Bascule bridges; Bridge design; Bridge piers; Bridges; Cofferdams; Construction; Lift bridges; Structural design
• Subject Areas: Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00495154
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 30 1990 12:00AM