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 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.