Great Northern Engineering Drawing: Shop Plan - Ladder and Brackets, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 219, undated.

Great Northern Engineering Drawing: Shop Plan - Ladder and Railing, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 241, undated.

Great Northern Engineering Drawing: Shop Plan - Lower Counterweight, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 116, undated.

Great Northern Engineering Drawing: Shop Plan - Machinery Girder, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 236, undated.

Great Northern Engineering Drawing: Shop Plan - Machinery Girder, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 243, undated.

Great Northern Engineering Drawing: Shop Plan - Machinery Girder, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 242, undated.

Great Northern Engineering Drawing: Shop Plan - Main Trunnion, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 312, undated.

Great Northern Engineering Drawing: Shop Plan - Masonry Plan, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 113, undated.

Great Northern Engineering Drawing: Shop Plan - Miscellaneous Details, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 221, undated.

Great Northern Engineering Drawing: Shop Plan - Name Plate, Bridge 4 - Salmon Bay, Ballard, Washington, Line Segment 050, Milepost 6.3. Sheet 198 - 2449 - 250, undated.