Spokane, Portland, and Seattle Railway Engineering Drawing: Interlocking and Telegraph Office Building at Willbridge, Oregon, undated. Burlington Northern File Number RS-275, Reference Number 101.

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: Living Quarters for Agent (Oregon Electric Railway) at Weldwood, Oregon, prepared in 1946. Burlington Northern File Number PQ-111, Reference Number 10102.

Spokane, Portland, and Seattle Railway Engineering Drawing: Living Quarters for Agent (Oregon Electric Railway) at Weldwood, Oregon, prepared in 1946. Burlington Northern File Number PQ-111, Reference Number 10102.

Spokane, Portland, and Seattle Railway Engineering Drawing: Loading Platform at Linnton, Oregon, prepared in 1956. Burlington Northern File Number TV-500-A, Reference Number 10109, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Loading Platform at Linnton, Oregon, undated. Burlington Northern File Number TV-500, Reference Number 101, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Loading Platform (Oregon Electric Railway) at Beaverton, Oregon, prepared in 1956. Burlington Northern File Number WW-525, Reference Number 10103.

Spokane, Portland, and Seattle Railway Engineering Drawing: Machine Shop (Oregon Electric Railway) at Albany, Oregon, prepared in 1945. Burlington Northern File Number RS-276, Reference Number 10102.

Spokane, Portland, and Seattle Railway Engineering Drawing: Mechanical Office at Albany, Oregon, prepared in 1964. Burlington Northern File Number RS-277, Reference Number 10111, Sheet 001.