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Spokane, Portland and Seattle Railway Engineering Drawing: Retaining Wall, Bridge 24.2 - Camas Tramway, Camas, Washington, Line Segment 047, Milepost 24.21. Sheet NO - 270 A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Replacement Diagram, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet 00 241, 1963.

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Wood Truss, Bridge, Oregon. Sheet AA106A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Ties, Bridge 7.4 - Columbia Slough, north of East Saint Johns, Oregon, Line Segment 047, Milepost 7.40. Sheet NO - 465, 1968.

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Stringer, Bridge 45.8 - Highway - Plan, east of Skamania, Washington, Line Segment 047, Milepost 45.8. Sheet NO 456, 1966. Note: Timber stringer - gone now

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Steel, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet NO 437, 1964.

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Steel, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet NO 439, 1964.

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Steel, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet NO438, 1964.

Spokane, Portland and Seattle Railway Engineering Drawing: Replace Span, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet NO 432, 1963.