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.
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LC Name Authority: https://lccn.loc.gov/n83205025