MULTIPLE LAUNCHES SPAN MARYLAND'S POTOMAC

Shortage of funds for bridge construction has necessitated innovative techniques to cut costs and increase competitiveness on bridge contracts. The article describes how pre-engineered, prefabricated steel truss panel bridges, are used as a temporary detour structure while the contractor undertakes either bridge repair or replacement. When the Willey Ford Bridge over the Potomac River in Alleghany County, Maryland was contracted out for removal and replacement, a 472-ft temporary detour bridge was supplied from the contractor's stock equipment. The temporary bridge has a single lane roadway designed to support AASHTO HS20-44 highway loading, complete with a cantilevered footwalk for pedestrian traffic. The details are described of the equipment which was designed for rapid installation. The Wiley Ford bridge structure is expected to be completed early in 1992 when the temporary bridge will be de-launched, disassembeld and returned to stock.

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  • Corporate Authors:

    Scranton Gillette Communications

    380 E Northwest Highway, Suite 200
    Des Planes, IL  United States  60016-2282
  • Authors:
    • Kuennen, T
  • Publication Date: 1991-11

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Filing Info

  • Accession Number: 00618304
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 31 1992 12:00AM