Northern Pacific Engineering Drawing: Skew Beam Spans, Bridge 39.1 - Chehalis Western Railroad, south of East Olympia, Washington, Line Segment 052, Milepost 39.6. Sheet 785 - 17, undated.

Northern Pacific Engineering Drawing: Steel Plan, Bridge 39.1 - Chehalis Western Railroad, south of East Olympia, Washington, Line Segment 052, Milepost 39.6. Sheet 785 - 17, undated.

Northern Pacific Engineering Drawing: Steel Repairs, Bridge 36 - Deschutes River, south of East Olympia, Washington, Line Segment 052, Milepost 36.14. Sheet 782 - 22, undated.

Northern Pacific Engineering Drawing: Stress Sheet, Bridge 36 - Deschutes River, south of East Olympia, Washington, Line Segment 052, Milepost 36.14. Sheet 782 - 22, undated.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 36 - Deschutes River, south of East Olympia, Washington, Line Segment 052, Milepost 36.14. Sheet 782 - 22, 1961.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 36 - Deschutes River, south of East Olympia, Washington, Line Segment 052, Milepost 36.14. Sheet 782 - 22, 1961.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 39.1 - Chehalis Western Railroad, south of East Olympia, Washington, Line Segment 052, Milepost 39.6. Sheet 785 - 17, 1963.

Northern Pacific Engineering Drawing: Treated Timber Detail, Bridge 37+5205 - Waldrick Road, south of East Olympia, Washington, Line Segment 052, Milepost 37.99. Sheet 424 - 45, undated.