a circle shape
truss bridges are able to support the most weight applies to the bridge, especially when the weight is applied to the middle
A support pole
a suspension bridge
A bridge with overhead cables to support it.
London Bridge doesn't have any support cables.
A bridge pier is the structure on which the bridge rests.
because of the support of the circles
schering bridge
Because it has more support in its arches.
They help keep the suspension bridge up by giving it balance.
Sub Structure
Double Data Rate