There are many different types of bridges, including:
♦ Road bridges, Rail bridges, Footbridges etc
♦ Suspension bridges, Cable-stayed bridges, Beam bridges, Truss bridges, Cantilever bridges, Opening bridges and many more...
Below are photos of a few of these different types of bridge, that may help to give you ideas for your K'NEX bridge.
Click on any image below to see a larger picture. You may also like to view some K'NEX bridge examples.
One way of finding more pictures of real-life bridges is to do a search in Google Images for "Bridges".
Some of the parameters you might think about in completing a Bridge challenge are:
♦ How long a gap can your bridge span?
♦ What weight can your bridge support in the centre?