Forth road bridge coating

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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.