Great Northern Railway Historical Society Blueprint Collection JSBP6339, System Wide, 1908. Duluth, Missabe & Northern Railway Blueprint, Sketch Showing Drilling 80 Pound Rail. Elevation. Interstate Commerce Commission Account Number 9, Rails. Other ICC account descriptions: ICC Account Number 9, Rail.

Great Northern Railway Historical Society Blueprint Collection JSBP1317, Duluth, Minnesota, 1957. Great Northern Blueprint Number 211.1560.346, Duluth-Superior Bridge. Fender for Center Pier - Renewal of East Nose Crib. Authorization for Expenditure 88095. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP1316, Duluth, Minnesota, 1948. Timber Sidewalk. Details - 9th Avenue W and Michigan Street. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP5461, Saint Paul, Minnesota, 1936. Northern Pacific Railroad Blueprint Number 360803, Ice House. Plan and Elevation. Authorization for Expenditure 760. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Icing Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP5461, Saint Paul, Minnesota, 1936. Northern Pacific Railroad Blueprint Number 360803, Ice House. Plan and Elevation. Authorization for Expenditure 760. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Icing Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP1311, Duluth, Minnesota, 1939. Great Northern Blueprint Number 211-1560-51, Approach to Inter-State Bridge. General Plan and Typical Details. Authorization for Expenditure 53331. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP1305, Duluth, Minnesota, 1938. Great Northern Blueprint Number 211-1560-318, Duluth-Superior Bridge. Guard Rail for Approaches. Authorization for Expenditure 53331. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP1304, Duluth, Minnesota, 1937. Great Northern Blueprint Number 211-1560-313, Duluth-Superior Bridge. Roadway Deck Renewal. Authorization for Expenditure 53331. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP1303, Duluth, Minnesota, 1936. Duluth-Superior Bridge. Gasoline Engine Driven Generator. Authorization for Expenditure 50657. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP1301, Duluth, Minnesota, 1930. Duluth Superior Bridge. Timber Frame Bent. Authorization for Expenditure 41050. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.