Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse on Union Avenue at Portland, Oregon, prepared in 1949. Burlington Northern File Number RS-177A, Reference Number 10107.

Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse on Union Avenue at Portland, Oregon, prepared in 1955. Burlington Northern File Number PQ-133, Reference Number 10105, Sheet 002.

Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse on Union Avenue at Portland, Oregon, prepared in 1955. Burlington Northern File Number PQ-133, Reference Number 10105, Sheet 003.

Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse on Union Avenue at Portland, Oregon, prepared in 1955. Burlington Northern File Number PQ-133, Reference Number 10105, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse on Union Avenue at Portland, Oregon, prepared in 1957. Burlington Northern File Number PQ-139, Reference Number 10106.

Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse on Union Avenue at Portland, Oregon, prepared in 1963. Burlington Northern File Number RS-177B, Reference Number 10107.

Spokane, Portland, and Seattle Railway Engineering Drawing: Warehouse (Oregon Electric Railway) at Banks, Oregon, prepared in 1932. Burlington Northern File Number RS-256, Reference Number 10112.

Spokane, Portland, and Seattle Railway Engineering Drawing: Workshop and Oil Storage at Albany, Oregon, undated. Burlington Northern File Number T-8-14, Reference Number 101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Workshop and Oil Storage at Bend, Oregon, prepared in 1952. Burlington Northern File Number 1346, Reference Number 10110.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Proposed, Changes to Accommodate Universal Carloading at Portland, Oregon, prepared in 1962. Burlington Northern File Number PQ-326, Reference Number 10106, Sheet 001.