There is no average length. They are built to suit local conditions.
Suspension bridges look a little bit likecable-stayed bridges.
i dont know but its strong
Suspension bridges are built to make use of tension, whereas most other types of bridges make use of compression to bear their load. Suspension bridges are usually designed with the deck suspended below a series of towers by cables. Other types of bridges are generally either designed with the deck being supported from below by pillars, or made up of an arch.
There are many different lengths of suspension bridges.
In suspension bridges
suspension bridges
The longest bridges in the world are viaducts or trestle bridges. It is easier to design a high, elevated roadway by directly supporting it with many towers or piers (as in a viaduct or trestle bridges). It is more difficult to design an elevated roadway with a large unobstructed span (as in a suspension bridge or arch bridge). However, the bridges with the longest unobstructed spans in the world are invariably suspension bridges, because ...
They are suspension bridges. One of the well known examples is the Golden Gate Bridge in San Francisco.
In simple terms, cable stayed use less cables then a suspension bridge. They are a combination of both beam and suspension. Suspension bridges hold the "deck" (where vehicles cross), via the cables, hence the term "suspension"; whereas, a cable stayed has the deck connected via the cables to anchorage points.
yes
Steel is the most common, especially for suspension bridges. Concrete is used for lower bridges (and where little shifting will occur) because it is more resistant to the elements.
Egypt is not home to one of the three longest suspension bridges in the world.