The most cost-effective design for two exit ramps that had to cross unstable and potentially contaminated soil underlying the new Florida Turnpike/Interstate Highway 595 Interchange were cellular-spine bridges. The bridges follow curved alignments and are unique among the more than 90 elevated segments along the new interstate. The ramps consist of a 775-ft, stand-alone structure that will carry northbound traffic off the turnpike to eastbound I-595 and a 386-ft interfacing extension of a steel box girder bridge for northbound traffic off the turnpike to westbound I-595. The cellular structure has the outward appearance of a retaining wall. It satisfied the Florida Department of Transportation's design criteria for esthetics and was cost-effective at $36/sq ft.

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  • Corporate Authors:

    Public Works Journal Corporation

    200 South Broad Street
    Ridgewood, NJ  United States  07451
  • Publication Date: 1990-6

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Filing Info

  • Accession Number: 00496673
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 31 1990 12:00AM