Presentation Information
[III-36]Evaluation of Box Culvert Extension on Existing Structures
*Hiroaki Fujimori1, Hirofumi Hisada1, Junko Kimura2, Kenta Yoshizawa2 (1. Nippon Expressway Research Institute Company Limited, 2. Oriental Consultants Co., LTD.)
Keywords:
Culvert,Widening,Extension,Four lanes,Joint