Tenth progress report of the investigation of impact on hig-hway bridges / prepared as a part of an investigation condu-cted by the Engineering Experiment Station University of Il-linois ; in cooperation with the Division of Highways State- of Illinois of U.S. Department of Commerce Bureau of Publi-c Roads 

 - Urbana, Ill. : University of Illinois 
 - [122] p. 
 - Progress report ; 10 .