Great Northern Engineering Drawing: Shop Plan - Telegraph west Tower, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 363, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 199 - 2449 - 210, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 81, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 82, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 199 - 2449 - 211, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 80, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 199 - 2449 - 212, undated.

Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 199 - 2449 - 213, undated.

Great Northern Engineering Drawing: Shop Plan - Top Strut, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 199 - 2449 - 209, undated.

Great Northern Engineering Drawing: Shop Plan - Track Floor, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 132, undated.