Northern Pacific Engineering Drawing: Precast Concrete Details, Bridge 93.2 - west Stock Road, south of Castle Rock, Washington, Line Segment 052, Milepost 93.5. Sheet 390 - 8496 - 3, undated.

Northern Pacific Engineering Drawing: Precast Concrete Details, Bridge 36 - Pattison Lake, south of Kyro, Washington, Line Segment 052, Milepost 31.6. Sheet 390 - 8679 - 3, undated.

Northern Pacific Engineering Drawing: Precast Concrete Details, Bridge 27 - Salmon Creek, south of Auburn, Washington, Line Segment 051, Milepost 27.6. Sheet 390 - 8681 - 3, undated.

Northern Pacific Engineering Drawing: Precast Concrete Detail, Bridge 17.2 - White River, south of Kent, Washington, Line Segment 051, Milepost 17.7. Sheet 433 - 25, undated.

Northern Pacific Engineering Drawing: Precast Concrete Cap, Bridge 71, west of Greycliff, Montana, Line Segment 041, Milepost 71.7. Sheet 441 - 3, undated.

Northern Pacific Engineering Drawing: Precast Concrete Cap, Bridge 157, west of Belgrade, Montana, Line Segment 041, Milepost 157.1. Sheet 441 - 70, undated.

Northern Pacific Engineering Drawing: Precast Concrete Cap, Bridge 12 - Drainage Channel, Orillia, Washington, Line Segment 051, Milepost 12.3. Sheet 388 - 8755 - 2, undated.

Northern Pacific Engineering Drawing: Precast Concrete Block, Bridge 55 - Trout Creek, west of Trout Creek, Montana, Line Segment 044, Milepost 55.1. Sheet 1281 - 2, undated.

Northern Pacific Engineering Drawing: Precast Bent and Abutment, Bridge 82, south of Paha, Washington, Line Segment 046, Milepost 82.64. Sheet 388 - 8494 - 2, undated.

Northern Pacific Engineering Drawing: Precast Bent and Abutment, Bridge 129 - Esquatzel Coulee, Eltopia, Washington, Line Segment 046, Milepost 129.46. Sheet 388 - 8495 - 2, undated.