Eureka Southern Railroad

Reporting mark: EUKA
NWP - Alder Point 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; Spans lost during 1964 flood and repalced.
Pratt and Warren through truss bridge over Eel River on Northwestern Pacific Railroad (NWP)
Closed to all traffic

NWP - Island Mountain Bridge (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