2[2]IowaDOT Project TR-481CTRE Project 02-118,Identification of the best practices for design,construction,and repair of bridge approaches(Final Report),January 2005.
3[3]NCHRP SYNTHSIS 319.Bridge Deck Joint Performance.A Synthesis of Highway Practice,2003.
6[7]Mohamed M.Mekkawy,David J.White,Muhannad T.Suleiman and Sri Sritharan.Simple Design Alternatives to Improve Drainage and Reduce Erosion at Bridge Abutments,Proceedings of the 2005 Mid-Continent Transportation Research Symposium,Ames,Iowa,August 2005.
