Federal Bridge Co.

Adair Viaduct (Adair County, Iowa)
South Dakota Department of Transportation Bridge No. 63-052-030 (Turner County, South Dakota)
Pony truss bridge over West Fork Vermillion River on a county road, 2 mi. north and 1.8 mi. west of Marion in Dolton Township
South Dakota Dept. of Trans. Bridge No. 34-120-194 (Hutchinson County, South Dakota)