P0628 - Start of 24/680 freeways, July 1958. <br />Trucks in photo belong to Walnut Creek Aggregates, owner Merv Troye<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Walnut Creek Aggregates - S. Broadway and railroad tracks (S.P.R.R) ?