Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Plot Plan at Portland, Oregon, prepared in 1973. Burlington Northern File Number PQ-314, Reference Number 10108.

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.

Spokane, Portland, and Seattle Railway Engineering Drawing: Substation (Oregon Electric Railway) at Bendemeer, Oregon, prepared in 1943. Burlington Northern File Number PQ-201, Reference Number 10101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Stockyard (Oregon Electric Railway) at Albany, Oregon, prepared in 1916. Burlington Northern File Number WW-407, Reference Number 10107.

Spokane, Portland, and Seattle Railway Engineering Drawing: Interlocking Station at North Portland, Oregon, prepared in 1948. Burlington Northern File Number PQ-293, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Interlocking Station at North Portland, Oregon, prepared in 1948. Burlington Northern File Number PQ-293, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Crossing of Meter Box by Spur at Willbridge, Oregon, prepared in 1947. Burlington Northern File Number SS-322, Reference Number 10101.