Northern Pacific Engineering Drawing: Abutment Details, Bridge 129 - Farm Road, west of De Smet, Montana, Line Segment 042, Milepost 129.1. Sheet 2017 - 3, undated.

Northern Pacific Engineering Drawing: Detail Abutment Proposed Bridge, Bridge 125, west of De Smet, Montana, Line Segment 042, Milepost 125.7. Sheet 779 - 26, 1916. Note: Concrete span

Northern Pacific Engineering Drawing: General Plan, Bridge 127 - Highway, west of De Smet, Montana, Line Segment 042, Milepost 127.1. Sheet 1071 - 7, 1933. Note: Timber tresle

Northern Pacific Engineering Drawing: General Plan, Bridge 127 - Highway, west of De Smet, Montana, Line Segment 042, Milepost 127.1. Sheet 1071 - 7, undated.

Northern Pacific Engineering Drawing: General Plan, Bridge 128.1, west of De Smet, Montana, Line Segment 042, Milepost 128.93. Sheet 1076 - 69, 1929. Note: Concrete bridge

Northern Pacific Engineering Drawing: General Plan, Bridge 129 - Farm Road, west of De Smet, Montana, Line Segment 042, Milepost 129.1. Sheet 2017 - 3, 1965. Note: Concrete slabs on revised line

Northern Pacific Engineering Drawing: Pier/Slab Details, Bridge 129 - Farm Road, west of De Smet, Montana, Line Segment 042, Milepost 129.1. Sheet 2017 - 3, undated.

Northern Pacific Engineering Drawing: Pile Piers and Abutments, Bridge 127 - Highway, west of De Smet, Montana, Line Segment 042, Milepost 127.1. Sheet 1071 - 7, undated.