Canton Bridge Company

South Dakota Dept. of Transportation Bridge No. 10-270-338 (Butte County, South Dakota)
Lost pony truss bridge over Horse Creek on a county road, .1 mi. north and 4 mi. west of Newell
Swan Creek Bridge (Taney County, Missouri)
Vale Bridge (Butte County, South Dakota)
Through truss bridge over Belle Fourche River on a county road, 1 mi. east and .6 mi. north of Vale