Northern Pacific Engineering Drawing: Tie Plan, Bridge 6 - Chehalis River, Milburn, Washington, Line Segment 420, Milepost 6.93. Sheet 1076 - 4, 1937.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 6 - Chehalis River, Milburn, Washington, Line Segment 420, Milepost 6.93. Sheet 1076 - 4, 1927.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 6 - 66th Street, south of South Tacoma, Washington, Line Segment 400, Milepost 6.4. Sheet 446 - 14, 1946.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59, west of Reed Point, Montana, Line Segment 041, Milepost 59.6. Sheet 441 - 10, 1952.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 (98) - Hell Gate River, west of Phosphate, Montana, Line Segment 042, Milepost 59.6. Sheet 775 - 22, 1959.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 (98) - Hell Gate River, west of Phosphate, Montana, Line Segment 042, Milepost 59.6. Sheet 775 - 22, 1948.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 - Wynooche River, west of Montesano, Washington, Line Segment 402, Milepost 59.00. Sheet 434 - 14, 1948.

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

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 - Newaukum River, south of Chehalis Junction, Washington, Line Segment 052, Milepost 59.5. Sheet 2009 - 2, 1965.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 - Newaukum River, south of Chehalis Junction, Washington, Line Segment 052, Milepost 59.5. Sheet 2009 - 2, 1952.