Forth road bridge coating

The Forth Road Bridge (not to be confused with the Rail Bridge) was coated by Metallisation in the early 1960's with zinc metal spray. This video shows some extracts from a longer video unearthed from the Metallisation archives.

A coating survey undertaken over the last couple of years showed very good levels of corrosion protection still in place, some 45 years + after the opening of the bridge in 1964.