Alaska Railroad

Anton Anderson Memorial Tunnel (Anchorage, Alaska)
Built 1943, converted to combined railroad and highway tunnel 1998-2000
Tunnel under Maynard Mountain on Portage Glacier Highway and Alaska Railroad
Open to traffic

ARR Snow River Bridge (Kenai Peninsula Borough, Alaska)
Warren through truss bridge over Snow River on Alaska Railroad
Open to traffic

Chena River Railroad Bridge (Fairbanks North Star Borough, Alaska)
Pratt pony truss bridge over Chena River on Alaska Railroad
Open

Mears Memorial Bridge (Yukon-Koyukuk Census Area, Alaska)
Built 1923
Pennsylvania through truss bridge over Tanana River on single track of the Alaska Railroad in Nenana
Open to traffic

Ship Creek Bridge (Anchorage, Alaska)
Pony truss bridge over Ship Creek on Railroad
Open to traffic