Licence bridges

Lire le texte suivanthttp://metals.about.com/b/2012/05/31/why-corrosion-matters.htm

Take notes
- name of the bridge and nickname (why ?)
- date of construction
- locatiion
-length
- date of the failure (age of the bridge)
- number of vehicles on the bridge when it collapsed
-number of victims
- reason for the colapse
-what are the elements which accelerated the failure
-what are the different corrosion prevention techniques

Now, from your notes, present the document