Route 563 bridge over Route 309

One of the major highways in our area is Route 309. The bridges over this highway are designed using a beam construction.		The Route 563 bridge over Route 309 has two spans in reinforced concrete.
Bridge supports from the center span are integrated with the highway median strip.		Here are the large cement & rebar (hidden metal rods) beams that support the roadbed.

Lawn Avenue bridge over Route 309

A similar bridge design is used for the Lawn Avenue bridge over Route 309.		Note the additional bracing between the spans under the bridge.
Wing walls on either side of the bridge hold back the ground and also help to support the bridge, working as a buttress.		Guardrails at the top of the bridge are integrated into the guardrails that extend beyond the bridge.