Task 178, FY 2004, Evaluation and Update of NCHRP Project 24-08, "Scour at Bridge Foundations: Research Needs", (Ayres Associates, Peter Lagasse). This research is complete. The objective of this research was to identify bridge scour research completed or initiated in the last six years and compare the findings with the recommendations from the NCHRP Project 24-08, Scour at Bridge Foundations: Research Needs study completed in 1997. The 1997 recommendations were updated to include recently completed research as well as emerging research needs. The final report for this project has been submitted to the AASHTO Technical Committee on Hydrology and Hydraulics. (NCHRP Staff: T.G. Hess)