To accommodate the growing volume of traffic, construction began on the current bridge in 1927. It was designed by Mott, Hay and Anderson and fabricated by the famous bridge building firm of Sir William Arrol & Co. at their Dalmarnock Ironworks in Glasgow (they also built the famous Forth Rail Bridge and the steel structure of Tower Bridge in London). The new bridge was built around the old one to allow the road to remain open. It was opened on 31 October 1929 by the Duke of York (who would later become King George VI).