The objective of this synthesis was to document state DOT practices for evaluating the outcomes of the ACM process after project completion. Alternative contracting methods (ACMs) are contract payment provisions, procurement procedures, and various types of project delivery methods used in place of traditional design-bid-build and low-bid contracting. Common ACMs used by state departments of transportation (DOTs) include design-build, construction manager/general contractor, progressive design-build, public-private partnerships, and indefinite delivery/indefinite quantity contracting. 

Information for this study was gathered through a literature review, a survey of state DOTs, and follow-up interviews with selected DOTs. Case examples of six state DOTs provide additional information on evaluating ACM projects post construction.

Christofer M. Harper, of Black Dog Consultants, LLC, Daniel Tran, of Tran and Associates, LLC, and Roy E. Sturgill, Jr., of Blue CyClone, LLC, collected and synthesized the information and wrote the report. The members of the topic panel are acknowledged on page iv. This synthesis is an immediately useful document that records practices that were acceptable within the limitations of the knowledge available at the time of its preparation. As progress in research and practice continues, new knowledge will be added to that now at hand.

Completed report can be found at NCHRP Synthesis Report 622.