The original Port Mann Bridge stood tall in British Columbia for nearly 50 years before officials decided to replace it with a wider bridge of the same name.  Built in 1964, was four lanes wide and, at the time it was built was the most expensive stretch of road in Canada.  The new bridge it was replaced by spans 10 lanes wide and held the title of the widest bridge in the world until the new San Francisco-Oakland Bay Bridge was completed in 2013.