Concrete truss

Broad Street Bridge (Mason County, Texas)
Built 1918 by the Alamo Construction Co.
Concrete pony truss bridge over Comanche Creek on Broad Street in Mason
Open to traffic

McMillin Bridge (Pierce County, Washington)
Built 1934. Bypassed by a new vehicular bridge and left in place in 2015.
Concrete truss bridge over Puyallup River on WA 162 in McMillin
Open to pedestrians only

Variadero Bridge (San Miguel County, New Mexico)
Built ca. 1915; bypassed 1957
Concrete pony truss bridge over Rio Conchas on Old NM 104
Still standing, but condition unknown