Daniah posted this awnser better say thank you because i took my time awnsering this question.
There are two major forces that act on bridges: compression and tension. The compression force bears down on an object to shorten or compress it, while tension is the directly opposing force that...
the rectangular things on the side are called trusses. so there for the "truss" bridge
A truss is a diagonal brace which provides structural support for a bridge span by extending between a vertical member and the bridge span.
yup
K Truss of course