The Missouri Department of Transportation hired HDR to conduct a research project on the I-64 closure. The research studied traffic flow, economic impacts and how the public handled the changes to traffic during construction. We appreciate everyone's participation in this third party analysis of how the region coped during the closure.

• Jan-Feb 2008 report (954k pdf)
• Mar-May 2008 report (629k pdf)
• Jun-Aug 2008 report (731k pdf)
• Sep-Nov 2008 report (879k pdf)
• 2008 Annual Report HDR (3.6MB pdf)
• 2008 Annual Report Appendix (2.0MB pdf)
• Dec 2008-Feb 2009 report (653k pdf)
• March 2009 - June 2009 report (2.3MB pdf)
• July 2009 - September 2009 report (1.4MB pdf)
• Oct-Dec 2009 report (855k pdf)
• April 2010 I-64 Communication Assessment Report (2.10MB pdf)