AN INVESTIGATION OF THE EXTRA COSTS ARISING ON HIGHWAY CONTRACTS

To provide an indication of the root causes of claims and other extra costs arising in the earthworks sector of highway construction a study has been carried out for the Transport and Road Research Laboratory by Mott, Hay and Anderson, Consulting Engineers. Records for ten contracts carried out between 1957 and 1977 have been analysed; these projects involved the construction of about 37km of major road at tender prices totalling more than 12 million pounds, and additional costs totalling 4.2 million pounds. The analyses show that extra costs arising from earthworks difficulties alone were not necessarily greater than those resulting from other types of difficulty; those from ground-related and pavement construction work also formed a significant part of total extra costs. Main areas that gave rise to the extra costs were planning of site investigation, interpretation of site investigation results, and overall project planning and management. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
    • Tyrrell, A P
    • Lake, L M
    • PARSONS, A W
  • Publication Date: 1983

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 22 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00386218
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: SR 814 Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jul 30 1984 12:00AM