Brazos River Bridge (Palo Pinto County, Texas)
Built 1939
Through truss bridge over Brazos River on US 281
Open to traffic

Colorado River Bridge (Burnet County, Texas)
Built 1936; rehabilitated 1975
Deck truss bridge over Colorado River on US 281 in Marble Falls
Open to traffic

Guadalupe River Bridge (Comal County, Texas)
Built 1935
Through truss bridge over Guadalupe River on Southbound US 281 in Canyon Lake
Open to traffic

Republican River Bridge (Webster County, Nebraska)
Built 1935
Truss bridge over Republican River on US 281, 2 mi. south of Red Cloud
Open to traffic

Salt Fork Arkansas River Bridge (Woods County, Oklahoma)
Built 1937
Pony truss bridge over Salt Fork Arkansas River on US 281 in Alva
Open to traffic

Smoky Hill River US 281 Bridge (Russell County, Kansas)
Built 1933
Lost hree-span pony truss bridge over Smoky Hill River on US 281
No longer exists

South Canadian River Bridge (Canadian County, Oklahoma)
Built 1933
Pony truss bridge over South Canadian River on US 281
Open to traffic