Photos: Market Street Bridge

Elevation from southwest quadrant.

Elevation of bascule span from southwest quadrant.

Elevation of approach spans from southwest quadrant.

Elevation from southeast quadrant.

Elevation of bascule span from southeast quadrant.

Elevation of approach span from southeast quadrant.

Portal views facing north.

Portal views of bascule facing north.

Portal views of bascule arch facing north.

Portal views on bascule arch facing north.

Portal views on bascule arch facing south.

View of bascule sidewalk facing north.

Views of bascule arch and hanger system.

Partial views of bascule arch and hanger system.

Partial views of the bascule arch itself.

Plaque pillar.

Main plaque. 

Ross Landing plaque.

Cambria brand.

Lackawanna brand.

View of center of bascule arch as seen from on bridge.

View of center of bascule arch as seen from beside bridge.

Crown hinge as viewed from beside bridge.

Crown hinge as viewed from on bridge.

View at center of bascule showing removable balance weights.

Bridge tender house.

Bridge tender house supports.

Counterweight as viewed from beside bridge. The rack and pinion system is also visible in these photos.

Counterweight as viewed from on bridge.

View showing rack and pinion.

Pinion.

Gears.

Roller.

Roller details.

Arch top chord connections as viewed from on bridge.

Arch bottom chord connections as viewed from on bridge.

Longitudinal member connections with arch hangers.

Arch bottom chord.

 

Arch vertical member.

Arch hangers.

 

Sway bracing.

 

Sway bracing detail.

 

Sway bracing connections.

Looking up at lateral bracing.

 

Lateral bracing connection.

Counterweight frame members.

View toward counterweight frame bracing.

Piers. 

 

Detail of bascule pier.

Approach railing.

 

Bascule railing.