Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 - Newaukum River, south of Chehalis Junction, Washington, Line Segment 052, Milepost 59.5. Sheet 2009 - 2, 1946.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 - Newaukum River, south of Chehalis Junction, Washington, Line Segment 052, Milepost 59.5. Sheet 2009 - 2, 1938.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 58 - Palouse River, west of Perma, Washington, Line Segment 384, Milepost 58.4. Sheet 1069 - 36, 1947.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 58 - Palouse River, Palouse, Washington, Line Segment 384, Milepost 56.5. Sheet 93416, 1958.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Trout Creek, west of Trout Creek, Montana, Line Segment 044, Milepost 55.1. Sheet 1281 - 2, 1963.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Trout Creek, west of Trout Creek, Montana, Line Segment 044, Milepost 55.1. Sheet 1281 - 2, 1963.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Trout Creek, west of Trout Creek, Montana, Line Segment 044, Milepost 55.1. Sheet 1281 - 2, 1939.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Trout Creek, west of Trout Creek, Montana, Line Segment 044, Milepost 55.1. Sheet 1281 - 2, 1931.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Flathead River, west of Perma, Montana, Line Segment 043, Milepost 55.2. Sheet 774 - 10, 1958.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Flathead River, west of Perma, Montana, Line Segment 043, Milepost 55.2. Sheet 774 - 10, 1958.