Northern Pacific Engineering Drawing: Tie Plan, Bridge 33.1 - Chehalis Western Railroad, south of Saint Clair, Washington, Line Segment 052, Milepost 33.7. Sheet 1068 - 17, 1950.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 3.2 (72.2) - Hoquiam River, Hoquiam, Washington, Line Segment 610. Sheet 785 - 7, 1949.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 32 - Union Pacific Railroad, Athol, Idaho, Line Segment 045, Milepost 32.54. Sheet 447 - 30, 1964.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 32 - Union Pacific Railroad, Athol, Idaho, Line Segment 045, Milepost 32.54. Sheet 447 - 30, 1957.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 32 - Union Pacific Railroad, Athol, Idaho, Line Segment 045, Milepost 32.54. Sheet 447 - 30, 1942.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 32 - State Highway, south of Fishtrap, Washington, Line Segment 046, Milepost 32.61. Sheet 1063 - 29, 1948.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 32 - Skookumchuck Rr, south of Wetico, Washington, Line Segment 400, Milepost 32.6. Sheet, 1946.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 3.2 - Lake Pend Oreille, west of Sandpoint, Idaho, Line Segment 045, Milepost 3.88. Sheet 1070 - 2, undated.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 3.2 - Lake Pend Oreille, west of Sandpoint, Idaho, Line Segment 045, Milepost 3.88. Sheet 1070 - 2, undated.