Great Northern Railway Historical Society Blueprint Collection JSBP4923, Snohomish, Washington, undated. Great Northern Blueprint Number A.10.73, Snohomish Bridge. Track Plan Over Bridge. Authorization for Expenditure 17149. 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 JSBP4922, Snohomish, Washington, 1948. Great Northern Blueprint Number 221-4710-3, Bridge #462 over Drainage Ditch. General Plan. Elevation and Plan Views With Piling Locations. Authorization for Expenditure 76228. 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 JSBP4921, Snohomish, Washington, 1946. Great Northern Blueprint Number 201-4135, Bridge 455 at Pilchuck River. Proposed Bm Span. Elevation View. 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 JSBP4920, Snohomish, Washington, 1946. Great Northern Blueprint Number 201.4135, Bridge # 455. Elevation and Sections. 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 JSBP4918, Snohomish, Washington, 1918. Rebuilding Dyke. At Northern Pacific Overhead Crossing. Authorization for Expenditure 8657. 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 JSBP4916, Snohomish, Washington, 1901. Bridge #455 Temporary Draw Span Location. Elevation and Section View With Details. 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 JSBP4915, Snohomish, Washington, 1899. Sketch of Snohomish River Bridge. Replacing Timber Bridge. Authorization for Expenditure 2115. 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 JSBP4914, Snohomish, Washington, 1899. Sketch of Snohomish River Bridge. Replacing Timber Bridge. Authorization for Expenditure 2115. 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 JSBP4912, Skykomish, Washington, undated. Great Northern Blueprint Number X10-217 Sheet 23, Converter Sub Station- Transfer Cars for Transformers. Plan, Elevations, Sections and Details. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP4911, Skykomish, Washington, undated. Feeder and Track Transformer Circuits. Schematic. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.