This report documents development of a single-span replacement system for box culverts in the state of Kansas. Solutions were found using either a flat slab or the center span of the KDOT three-span, haunched-slab bridge standard. In both cases, the concrete superstructure is connected monolithically with a set of abutment walls, which sit on piling. The system provides an undisturbed, natural channel bottom, satisfying environmental regulations.
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