The picture illustrates three different tpes of bridge.
overall,each kind of bridge have their ovn distinctive layout and is builded over different water regions.
Getting back to details,firstly aech bridge is constructedover the lake.moreover,the structure of this bridge is curves feom the bottom.Likewise the length of the curved is about 200m not more than that also,the hight should be not more than 100m.Additionally ,small ships can easily pass under this type of bridge.
Secondly,the concrete girder beidge are build to cross the river. Furthermore,the length ot this bridge is not fixed, as it depends on the number of piers.In the digram we can see,five piers,with eachgap between them measuring with no more than 200 meter,and its hight should not be more than 300 meters.This type of bridge is used for transportation,including trucks,bus and mesium size ship can easily passthrough the gaps between the pirs.
hirdly,the suspwnsious bridgeis degined for deep waters,such as sea. iit consists of two piers on both sides ,supporting the structure through u-shape suspension system on the top.The gap between two piers should be from 400 2000 meters,allowing the large ships to pass easily.