Northern Pacific Engineering Drawing: Shop Plan - Post/Hangers, Bridge 16.1 - Chehalis River, Near Dryad, Washington, Line Segment 420, Milepost 16.80, undated.

Northern Pacific Engineering Drawing: Shop Plan - Post/Diagonal, Bridge 6 - Chehalis River, Milburn, Washington, Line Segment 420, Milepost 6.93. Sheet 434 - 3, undated.

Northern Pacific Engineering Drawing: Shop Plan - Post/Diagonal, Bridge 51, west of Craver, Montana, Line Segment 041, Milepost 51.5. Sheet 434 - 3, undated.

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

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

Northern Pacific Engineering Drawing: Shop Plan - Post/Diagonal, Bridge 206 (259) - Missouri River, west of Townsend, Montana, Line Segment 041, Milepost 206.3. Sheet 1066 - 2, undated.

Northern Pacific Engineering Drawing: Shop Plan - Post/Diagonal, Bridge 10 - Deek Creek, Oso, Washington, Line Segment 406, Milepost 18.5. Sheet 444 - 4, undated.

Northern Pacific Engineering Drawing: Shop Plan - Post/Chord, Bridge 6 - Chehalis River, Milburn, Washington, Line Segment 420, Milepost 6.93. Sheet 434 - 3, undated.

Northern Pacific Engineering Drawing: Shop Plan - Post/Chord, Bridge 51, west of Craver, Montana, Line Segment 041, Milepost 51.5. Sheet 434 - 3, undated.

Northern Pacific Engineering Drawing: Shop Plan - Post/Chord, Bridge 10 - Deek Creek, Oso, Washington, Line Segment 406, Milepost 18.5. Sheet 444 - 4, undated.