Experiences of Two Colorado Transportation Agencies with Their First Construction Manager-General Contractor Projects

Construction Manager/General Contractor (CMGC) project delivery system is beginning to be recognized as an effective way of accelerating the delivery of transportation projects and gaining popularity among transportation agencies. This research documents the experiences of two transportation agencies in Colorado and provides information with respect to the practices utilized by each agency in implementing the CMGC project delivery system for the first time. The first project is the Eisenhower-Johnson Memorial Tunnel Motor Control Cabinets Replacement project whose agency owner is the Colorado Department of Transportation. The second project is West Rail Line project whose agency owner is the Regional Transportation District. To provide findings that can benefit transportation agencies, researchers used multiple sources of information including structured in-depth interviews, questionnaires completed by key individuals working in the investigated projects, and published documents about the investigated projects. The findings provide a broad perspective on the different practices in implementing this project delivery system; and are presented under eight different areas: (i) rationale for choosing the particular project to utilize the CMGC project delivery system, (ii) procurement phase, (iii) preparation of the agency for the CMGC project, (iv) design contract for the CMGC project, (v) guaranteed maximum price and contingency, (vi) subcontracts, (vii) preconstruction services, and (viii) lessons learned. It was concluded that while both owners are Colorado transportation agencies, they utilized significantly different practices in implementing the CMGC project delivery, which eventually resulted in differences in opinion with respect to the potential of this system to be used in subsequent projects.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee AFH15 Project Delivery Methods.
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Ozbek, Mehmet E
    • Lopez Del Puerto, Carla
    • Gransberg, Douglas D
  • Conference:
  • Date: 2013

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 14p
  • Monograph Title: TRB 92nd Annual Meeting Compendium of Papers

Subject/Index Terms

Filing Info

  • Accession Number: 01472668
  • Record Type: Publication
  • Report/Paper Numbers: 13-0466
  • Files: PRP, TRIS, TRB, ATRI
  • Created Date: Feb 19 2013 8:52AM