Managing Geotechnical Risks in Design–Build Projects

This research developed a set of geotechnical risk management guidelines for design-build (DB) transportation projects. Geotechnical uncertainty is always high in DB projects where foundation conditions are unknown at the time the contract is awarded and where the design-builder is expected to conduct the subsurface investigations necessary to complete the design after establishing the project contract price. This issue is exacerbated by the fact that public agencies typically select DB project delivery when they want to accelerate project delivery. The guidelines are based primarily on the data gathered by a survey of state departments of transportation (DOTs), a second survey of both DOT and industry respondents with experience in DB geotechnical risk mitigation experience, and 20 case study projects. The major finding was a significant disparity in the perceptions of geotechnical risk of DOT engineers versus the industry experts. This led to the conclusion that DB geotechnical risk management strategies must necessarily permit an opportunity to align perceptions of risk and, if possible, mutually apportion the project’s geotechnical risk profile. The use of progressive DB, scope validation periods, and multiple notices to proceed are recommended as contractual tools to achieve this purpose.

  • Record URL:
  • Authors:
    • Gransberg, Douglas D
    • Loulakis, Michael
    • Touran, Ali
    • Gad, Ghada
    • McLain, Kevin
    • Sweitzer, Shannon
    • Pittenger, Dominique
    • Nova, Ivan Castro
    • Pereira, Ricardo Tapia
    • Pinto-Nunez, Milagros
  • Publication Date: 2018-2

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Contractor's Final Report
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 279p
  • Serial:
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 01684103
  • Record Type: Publication
  • Report/Paper Numbers: Project 24-44
  • Files: TRIS, TRB, ATRI
  • Created Date: Oct 22 2018 12:52PM