Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10110.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10106.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10110.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number 5129, Reference Number 10110, Sheet 007.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Yard Office at Willbridge, Oregon, prepared in 1953. Burlington Northern File Number PQ-287, Reference Number 10108.