We have now been able to add the Iron Bridge Documentary to youtube in fairly high definition. It's had to be split into two parts as it is longer than the maximum 10 minutes allowed.
To view, follow these links:
Iron Bridge Restoration Project (Part 1 of 2) :
Iron Bridge Restoration Project (Part 2 of 2) :
Now embedded in the main site too, see www.marple-uk.com/ironbridge
and follow one of the links to the Documentary.