Spirit Lake Transfer Railway

BNSF - Arbor Street Overpass (St. Louis County, Minnesota)
Built 1914
Concrete arch bridge over Arbor Street on DM&IR Railroad in Duluth
Open to traffic

CN - 108th Avenue Overpass (St. Louis County, Minnesota)
Built 1913, Bypassed 2015
Deck plate girder bridge over 108th Avenue on Canadian National Railway
Intact but closed to all traffic

CN - Oliver Approach Bridge (St. Louis County, Minnesota)
Built 1910
Deck plate girder bridge over CN Access Road on Canadian National Railway
Open to traffic

CN - U.S. Steel Creek Tributary Bridge (St. Louis County, Minnesota)
Deck plate girder bridge over U.S. Steel Creek Tributary on Bypassed Canadian National Railway
Intact but closed to all traffic

Willard Munger Trail - CN Overpass (St. Louis County, Minnesota)
Built 1913
Pony/through plate girder bridge over Abandoned Canadian National Railway on Willard Munger Trail
Open to pedestrians only