‘A bridge is a structure built to span physical obstacles such as a body of water, valley, or road,
for the purpose of providing passage over the obstacle. There are many different designs that all serve unique purposes
and apply to different situations. Designs of bridges vary depending on the function of the bridge,
the nature of the terrain where the bridge is constructed and anchored, the material used to make it,
and the funds available to build.’ says Jake.

My bridge has been around a very long time. It may be small but must have kept an awful lot of feet dry so was well worth the enormous effort involved in creating it from a slab of granite. 

Jake’s post with his clever animations can be found here http://jakesprinters.wordpress.com/2013/06/23/sunday-post-bridge/