Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 58.8 - Wind River, east of Stevenson, Washington, Line Segment 047, Milepost 58.74. Sheet 00 - 629, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 53.5 - Rock Creek, east of North Bonneville, Washington, Line Segment 047, Milepost 53.54. Sheet 00 - 638, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 47.0 - Hamilton Creek, east of Skamania, Washington, Line Segment 047, Milepost 47.02. Sheet WX - 223, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 47.0 - Hamilton Creek, east of Skamania, Washington, Line Segment 047, Milepost 47.02. Sheet 00 - 626, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 31.3 - Hathaway Creek, east of Washougal, Washington, Line Segment 047, Milepost 31.32. Sheet 00 - 627, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 24.8 - Washougal River (West End), Washington, Line Segment 047, Milepost 28.78. Sheet 00 - 618, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Detail Renewal, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet TV 225, 1917.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Detail and Bill Material, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet CC 503A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Dapping Table, Bridge T88.6 - Trout Creek, south of South Junction, Oregon, Line Segment 053, Milepost 88.62. Sheet X - 24 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie and Shim Details, Bridge 24.8 - Washougal River (West End), Camas, Washington, Line Segment 047, Milepost 24.75. Sheet 364 - 8116 - 2, undated.