Bee Creek US 166 Bridge (Montgomery County, Kansas)
Built 1931-32
Marsh arch bridge over Bee Creek on US 166
Open to traffic

Cedarvale Bridge (Chautauqua County, Kansas)
Built 1930
Two-span Marsh arch bridge over Caney River on Old US 166, east of Cedarvale
Open to traffic

Coffeyville Bridge (Montgomery County, Kansas)
Built 1926; made obsolete by new bridge and alignment in 1948
Three-span Marsh arch bridge over Verdigris River
Open to traffic

Deer Creek US 166 Bridge (Chautauqua County, Kansas)
Built 1928
Concrete arch bridge over Deer Creek on US 166/K-99
Open to traffic

Hewins Road Bridge (Chautauqua County, Kansas)
Lost Marsh arch bridge over Grant Creek on US 166
Replaced by a new bridge

Jones Creek Bridge (Jasper County, Missouri)
Built 1929, Abandoned 1958
Concrete tee beam bridge over Jones Creek on Cimarron Rd (formerly US 166)
Open to Local traffic

Neosho River US 166 Bridge (Labette County, Kansas)
Built 1936; Lost 2008
Lost through truss bridge over Neosho River on US 166
Replace by a concrete bridge

Spring River Bridge (Cherokee County, Kansas)
Built 1943; replaced 2002
Lost through truss bridge over Spring River on US 166/US 400 in Baxter Springs
No longer exists