Northern Pacific Engineering Drawing: Treat Timber Details, Bridge 1+2375 - Hazeldell Avenue, east of Rye Junction, Washington, Line Segment 438, Milepost 1.45. Sheet 1267 - 13, undated.

Northern Pacific Engineering Drawing: Transverse Struts, Bridge 165 - Fish Creek, west of Cyr, Montana, Line Segment 042, Milepost 165.0. Sheet 786 - 1, undated.

Northern Pacific Engineering Drawing: Transverse Section Truss, Bridge 62.1 - Spokane River, west of Trentwood, Washington, Line Segment 045, Milepost 62.6. Sheet 777 - 15, undated.

Northern Pacific Engineering Drawing: Transverse Bracing, Bridge 67 - Rock Creek, west of Tuscor, Montana, Line Segment 044, Milepost 67.1. Sheet 1060 - 57, undated.

Northern Pacific Engineering Drawing: Transverse Bracing, Bridge 23 - Chehalis River, west of Pe Ell, Washington, Line Segment 420, Milepost 23.13. Sheet 1058 - 23, undated.

Northern Pacific Engineering Drawing: Transverse Bracing, Bridge 165 - Fish Creek, west of Cyr, Montana, Line Segment 042, Milepost 165.0. Sheet 786 - 1, undated.

Northern Pacific Engineering Drawing: Transverse Brace Details, Bridge 7 - Marent Gulch, west of Nagos, Montana, Line Segment 043, Milepost 7.1. Sheet 1262 - 19A, undated.

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

Northern Pacific Engineering Drawing: Trackage, Bridge 0 - Clark Fork River, north of Phosphate, Montana, Line Segment 368, Milepost 0.06. Sheet 1268 - 26, undated.

Northern Pacific Engineering Drawing: Track Revisions and Shoofly, Bridge 9 - Highway #1, south of Lakeview, Washington, Line Segment 400, Milepost 9.4. Sheet 1076 - 92, undated.