Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet B4183, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet B4183, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet B4183, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct Bent Number 8, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet N - 4 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet NO237 - A, 1960.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet NO237 - A, 1960.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet NO - 236, 1931.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Framing Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet NO - 237, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet N - 4 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet 265 - 8, undated.