Bankhead Tunnel (Mobile County, Alabama)
Built 1940
Tunnel under Mobile River on US 98 in Mobile
Open to traffic

Homochitto River US 98 Bridge (Franklin County, Mississippi)
Built 1951
Through truss bridge over Homochitto River on US 98
Open to traffic

St. Andrews Bay Bridge (Bay County, Florida)
Built 1960; replaced 2003
Lost through truss bridge over St. Andrews Bay on US 98/FL 30 in Panama City Beach
No longer exists

Taylor Creek Bridge (Okeechobee County, Florida)
Built 1948
Bascule bridge over Taylor Creek on US 98/US 441 in Taylor Creek
Open to traffic