of the cast iron bridge followed by six years of provisional bridges succeeding each other. In 1958 the present 13.4 metre wide, closed frame, concrete bridge crossing Centralbron, one of the major motorways in Stockholm, over two intermediate supports was finally built. See also Centralbron Vasabron List of bridges in Stockholm Gallery References External links Stockholmskällan - historical images of Riddarholmsbron. Bridges in Stockholm Bridges completed in 1958 1958 establishments in Sweden