The Pont Neuf is constructed as a series of many short arch bridges, following Roman precedents. It was the first stone bridge in Paris not to support houses in addition to a thoroughfare, and was also fitted with pavements protecting pedestrians from mud and horses; pedestrians could also step aside into its bastions to let a bulky carriage pass. The bridge was opened to traffic in 1604 and completed in July 1606. It was inaugurated by Henri IV in 1607. At the time of construction and naming it was the newest bridge over the Seine, now it is the oldest.