SPANNING BAD GROUND

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.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1606878
• Corporate Authors:

  Public Works Journal Corporation

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

Media Info

• Features: Photos;
• Pagination: p. 65
• Serial:
  • Public Works
  • Volume: 121
  • Issue Number: 7
  • Publisher: Hanley Wood
  • ISSN: 0033-3840
  • Serial URL: http://www.pwmag.com

Subject/Index Terms

• TRT Terms: Aesthetics; Cellular structures; Cost effectiveness; Ramps; Unstable soil
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

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