A pictures show tree type of bridge and their different construction and how this types of build helps people and why people built different types of it.
First bridge named “arch” made from bricks and have just straight path. It standing on the two big colons it two corners. The high of this bridge 100 metres below the lake, and about 200 metres in wides. So because of that only small ships and boats can sealing there.
Next one is concrete girder bridge has five plers which helps standing and being more strong, usually plers stand in the bottom of the river. The distance between plers is about 200 metres and the high of the bridge equals 300 metres. Also the long of bridge can be more then 1 kilometre.Because of the high, middle size boats and ship can sealing under the bridge.
Last bridge is suspension. Usually this types of bridge has two piers which standing on the land, the long depends on the place but usually it about 400-2000 metres. The high often really higher then other, so there are can sealing all types of ships, usually there are sealing large and gigantic ships because of the deep sea.
So there are tree common types of bridge for the lake, river, sea and different types of transport, which equire many power to build and products. The main it that the type and size of bridge depends of the place where engineers decided to built it, because it different reliefs and takes another components to build