Precast Reinforced Concrete Box Culvert

Kansas Department of Transportation & City of Overland Park, KS

The Kansas Department of Transportation was planning to improve traffic flow and improve safety by widening portions of Interstate 435 and US 69 in Overland Park. Partnering with Clarkson Construction, Cretex Concrete Products presented a joint value-engineering proposal to KDOT for a precast RCB.


The precast reinforced box culvert deviated from the project specifications, which called for portions of the project to be a cast-in-place rigid frame box. Cretex felt the precast box culvert would allow for a faster installation process and therefore decrease the lane closure duration for the construction of the new culvert.


All told, the Bonner Springs plant produced 116 pieces of precast box culvert for the project. The City of Overland Park and the Kansas Department of Transportation appreciated the quality of the work and Cretex’s creative solutions for meeting timelines.