Northern Pacific Engineering Drawing: General Plan, Bridge 64 (48) - Union Pacific Railroad, west of Irwin, Washington, Line Segment 045, Milepost 64.53. Sheet 778 - 3, undated. Note: Concrete trestle

Northern Pacific Engineering Drawing: General Plan, Bridge 66 - Highway Department Drawing, south of Ritzville, Washington, Line Segment 046, Milepost 66.17. Sheet 1056 - 41, undated.

Northern Pacific Engineering Drawing: General Plan, Bridge 66, south of Ritzville, Washington, Line Segment 046, Milepost 66.17. Sheet 1056 - 41, 1958.

Northern Pacific Engineering Drawing: General Plan, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 443 - 30, 1906. Note: Swing span

Northern Pacific Engineering Drawing: General Plan, Bridge 7 - Marent Gulch, west of Nagos, Montana, Line Segment 043, Milepost 7.1. Sheet 1262 - 19A, 1944. Note: Steel viaduct

Northern Pacific Engineering Drawing: General Plan, Bridge 7 - Stillaguamish River, east of Arlington, Washington, Line Segment 406, Milepost 14.8. Sheet 444 - 23, 1900. Note: Steel truss

Northern Pacific Engineering Drawing: General Plan, Bridge 71 - Division Street, Spokane, Washington, Line Segment 045, Milepost 71.27. Sheet 1054 - 6, undated.

Northern Pacific Engineering Drawing: General Plan, Bridge 71.5 - Station Subway, Spokane, Washington, Line Segment 045, Milepost 71.50. Sheet 1269 - 4, undated.

Northern Pacific Engineering Drawing: General Plan, Bridge 78 - Olequa Creek, south of Vader, Washington, Line Segment 052, Milepost 78.4. Sheet 1256 - 6, 1941. Note: Steel spans

Northern Pacific Engineering Drawing: General Plan, Bridge 78, west of Noxon, Montana, Line Segment 044, Milepost 78.9. Sheet 1074 - 10, 1927. Note: Steel spans