A Beam and Girder Bridge can also be considered a Beam Bridge.
Its is composed of beams that follow along the spine of the bridge.
The beams absorb the load of the passing vehicles.
This bridge uses natural tools such as rocks, stone, and tar as well as other things like steal and concrete.
In ancient times, in the process of building this bridge, the ways of manipulating natural recourses went unnoticed.

Beam and Girder Bridge