Box and slab culvert Glenda McMahon Ken Chatterton 10.17028/rd.lboro.8094497.v1 https://repository.lboro.ac.uk/articles/figure/Box_and_slab_culvert/8094497 Box and slab culvert 2019-05-08 13:10:08 WEDC Technical Diagram Transport, roads, vehicles and safety International and Development Communication