Structural Enhancements: Railroads Build New Bridges or Modernize Old Ones to Ensure Vital Structures Can Handle Today's Traffic Demands

This article discusses major projects in progress by freight and passenger railroads intending to structurally enhance dated rail bridges. To keep up with current traffic demands, railroads are looking to modernize structures in order to remedy operational problems. The Kate Shelley Bridge is an example of a structure currently undergoing such improvements, where upgrades involve construction of a replacement structure called the Boone High Bridge that lowers costs by using old spans. The article also discusses a bridge spanning the Mississippi River whose reparation is eligible for federal assistance under the Truman-Hobbs Act of 1940. The bridge’s unique swing span design calls for innovative approaches to modernization, including building a new structure inside of the old bridge. Finally, the article looks at the distinctive approaches to structural enhancements of the Culver Viaduct in New York and a stone and brick bridge in Pennsylvania.


  • English

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Filing Info

  • Accession Number: 01103861
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Jun 11 2008 2:10PM