Great Northern Railway Historical Society Blueprint Collection JSBP4756, Sieben, Montana, 1930. Great Northern Blueprint Number 169-12, Bridge Number 40 - Proposed Replacement 84' D.P.G. Span. Site Plan, Plan and Elevation. 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 JSBP4757, Sieben, Montana, undated. Great Northern Blueprint Number 174-1570-11-B, Bridge Number 40. Plan and Elevation. 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 JSBP4758, Silvana, Washington, 1892. Deflecting Pile Pier at Stillaguamish River. Plan and Elevations. Interstate Commerce Commission Account Number 23, Wharves and Docks. Other ICC account descriptions: ICC Account Number 23, Pier.

Great Northern Railway Historical Society Blueprint Collection JSBP4759, Silvana, Washington, 1904. Sketch of Proposed Bridge. Replacing Swing Bridge. Authorization for Expenditure 10151. 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 JSBP4760, Silvana, Washington, 1904. Great Northern Blueprint Number 197.1322.02, Bridge # 17. Elevation, Side View, Layout. 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 JSBP4761, Silvana, Washington, 1936. Great Northern Blueprint Number 197-1322-20, Bridge Number 17. General and Detail for Renewals of Pier 1 and Approach. Authorization for Expenditure 51568. 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 JSBP4774, Singleshot, Montana, 1932. Great Northern Blueprint Number 229-2906-26, Snowshed #6 Buttress at West End. Plan and Elevation Views. Authorization for Expenditure 44820. 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 JSBP4775, Singleshot, Montana, 1932. Great Northern Blueprint Number 229-2906-26A, Snowshed #6 Reinforcement at West End. Plan, Elevation and Section Views, With Bill of Materials. Authorization for Expenditure 44820. 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 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.