Eureka Southern Railroad

Reporting mark: EUKA
NWP - Alderpoint Bridge (Humboldt County, California)
Built 1913 by the American Bridge Co.
Through truss bridge over Eel River on Northwestern Pacific Railroad (NWP)
Closed to all traffic

NWP - Cain Rock Bridge (Humboldt County, California)
Built 1910; 2 northern spans lost during 1964 flood and replaced.
Pratt and Warren through truss bridge over Eel River on Northwestern Pacific Railroad
Closed to all traffic

NWP - Island Mountain Bridge (1965) (Trinity County, California)
Built 1965
Warren through truss bridge over Eel River on Northwestern Pacific Railroad
Closed to all traffic

NWP - Island Mountain Tunnel (Trinity County, California)
Tunnel on Northwestern Pacific Railroad
Closed

NWP - Van Duzen River Bridge (Humboldt County, California)
Built 1913
Pratt through truss bridge over Van Duzen River on Eureka Southern Railroad
Closed to all traffic