Precast Box Culvert Extends Bridge's Service Life – American Concrete Pipe Association
Reinforced Concrete Box Culvert - Del Zotto Precast Concrete
Precast Concrete Box Culverts | Columbia Precast Products
Christy® | Oldcastle Infrastructure
Box Culverts | Oldcastle Infrastructure
12' wide x 7' high double-cell monolithic box culvert with 24 inch RCP equalization pipes, CalTrans Project 03-44161… | Culvert, Precast concrete, Home construction