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Show Do You Know? I . 1 1 ' ' 'iii ' w , sioi err - ' ) 1 -4-, iti-" ; t 1 Photograph, CansdUn .Vrtion.,' R iHwayr npHAT one of the biggest paint Jobs in the world is that of protecting the superstructure of the Quebec bridge from deterioration? Every year 7500 gallons of paint are sprayed on this bridge by specially designed air brushes operated by a force of 35 men who work for five continuous months on the Job. the bridge, part of which is shown aoove, It 2830 feet long, and three coats of paint have to be applied, one each year for three years.by whloh time the job has to be started all ovsr again. |