Spokane, Portland and Seattle Railway Engineering Drawing: Equalizer Shaft Bearings, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 13, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Equalizer Gear, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 19, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Equalizer Assembly and Detail, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 22A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Post Line Up, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet 231 - 7065 - 8, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Toggles, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 5, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Toggle, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 7, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Strut and Wheel, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Stop Switch, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 5 - 16, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Shaft and Details, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 6, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Plunger and Latches, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 2 - 4, undated.