The Visual Inspection method is by far the predominant nondestructive evaluation (NDE) technique used in bridge inspections and serves as the baseline by which many other NDE technologies and methods can be compared. However, since inception of the National Bridge Inspection Standards in 1971, which mandated regular and periodic bridge inspections, a complete study of the reliability of the Visual Inspection method for bridge inspections has not been undertaken. Given this fact and understanding that the Visual Inspection method has limitations that affect its reliability, a comprehensive study to quantify the reliability of the Visual Inspection method as it is currently practiced was initiated. The experimental program consisted of having a representative sample of practicing bridge inspectors complete a battery of pre-defined inspection tasks using the resources of the Federal Highway Administration's NDE Validation Center. Quantifiable information regarding the inspection environment was collected in order to study the influence of environment on Visual Inspection reliability. Additionally, extensive information was collected about the inspector's physical and psychological characteristics allowing the influence of those characteristics upon Visual Inspection reliability to be assessed.

  • Availability:
  • Supplemental Notes:
    • This entry in the TRIS database is made from the hardback copy of the conference proceedings, which are also available on CD-ROM.
  • Corporate Authors:

    Technomic Publishing Company, Incorporated

    851 New Holland Avenue, Box 3535
    Lancaster, PA  United States  17604
  • Authors:
    • Phares, B M
    • Rolander, D D
    • Graybeal, B A
    • Washer, G A
    • Moore, M
  • Conference:
  • Publication Date: 2000


  • English

Media Info

  • Pagination: p. 14-19

Subject/Index Terms

Filing Info

  • Accession Number: 00793099
  • Record Type: Publication
  • ISBN: 1566769493
  • Files: TRIS
  • Created Date: May 1 2000 12:00AM