Precast Closed-spandrel arch
Knoll Road Bridge
(Story County, Iowa)Built 2004Concrete rigid frame bridge over College Creek on Knoll Road/Union Drive on Iowa State University CampusOpen to traffic
Sonoma Raceway "The Chute"
(Sonoma County, California)Built 1998Precast Closed-spandrel arch bridge over Infield on Sonoma Raceway "The Chute"
SRC - Pumpkinville Pike Overpass
(Lancaster County, Pennsylvania)Built 2011Closed-spandrel arch bridge over Pumpkinville Pike on Strasburg RailroadOpen to traffic