Great Northern Railway Historical Society Blueprint Collection JSBP1256, Doon, Iowa, 1947. Great Northern Blueprint Number 136-4155, Proposed Walks On Bridge Number 164.4. Section. 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 JSBP2712, Hinton, Iowa, undated. Great Northern Blueprint Number 109.06.01, Signal Diagram. Arrangement. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Other ICC account descriptions: ICC Account Number 27, Interlocking.

Great Northern Railway Historical Society Blueprint Collection JSBP3239, Maurice, Iowa, 1907. Proposed Dam. Plan, Sections and Material List. Interstate Commerce Commission Account Number 35, Miscellaneous Structures. Other ICC account descriptions: ICC Account Number 35, Dam.

Great Northern Railway Historical Society Blueprint Collection JSBP3266, Merrill, Iowa, 1940. Great Northern Blueprint Number 283-5297-3, Bridge Number 205.7. General Plan. Authorization for Expenditure 58370. 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 JSBP4789, Sioux City, Iowa, 1916. Great Northern Blueprint Number 3112.03.01, Crossing Frog. Replace 60 # Frog with 80 # Frog. Authorization for Expenditure 4875. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Other ICC account descriptions: ICC Account Number 12, Rail Line.

Great Northern Railway Historical Society Blueprint Collection JSBP4790, Sioux City, Iowa, 1916. Great Northern Blueprint Number 1085.27, Crossing Frog. Diagram of Crossing of Cnw Railway and Union Terminal Railway Co. Authorization for Expenditure 4875. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Other ICC account descriptions: ICC Account Number 12, Rail Line.

Great Northern Railway Historical Society Blueprint Collection JSBP4839, Sioux City, Iowa, 1951. Great Northern Blueprint Number 309-5891-A, Wagon Bridge. Elevation View of The Wagon Bridge East of 18th St Proposed Plan "A". 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 JSBP4840, Sioux City, Iowa, 1951. Great Northern Blueprint Number 309-5891-B, Wagon Bridge East of 18th St. Elevation of Proposed Plan "B". 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 JSBP4856, Sioux City, Iowa, 1963. Great Northern Blueprint Number 108-7-23, Highway Crossing Signals at 3rd Street. Map, Wiring Diagram and Elevation. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Other ICC account descriptions: ICC Account Number 27, Signal.

Great Northern Railway Historical Society Blueprint Collection JSBP4864, Sioux City, Iowa, undated. Bridge #1 over the Floyd River. General Plan Including Bill of Material and Dimensions. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.