The federal aid authorizing funds for the reconstruction or replacement of off-system bridges as well as those on federal-aid routes required that inventories of bridges be made, the condition evaluated and the results transmitted to Federal Highway Adminstration for the establishment of ratings and priorities. Since early spring of 1979 the pace of both bridge inspections and corrective work on many rated as dangerous or functionally obsolete has accelerated. In July BETTER ROADS published results of a survey of the states which revealed that of 28 replying, seven had completed their state-wide inventories and inspections. The continuing survey indicates the combined interstate and on-system state bridges total 135,485 of which approximately 21 percent are in the structurally deficient or functionally obsolete categories. The article also discusses a type of "panel bridge" that is assembled on site and used for traffic detours while an existing bridge is being rebuilt, and in some cases as a permanent replacement.

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Filing Info

  • Accession Number: 00314810
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 27 1980 12:00AM