The Pont Neuf ("New Bridge") is the oldest standing bridge across the river Seine in Paris, France. It stands by the western (downstream) point of the Île de la Cité, the island in the middle of the river that was, between 250 and 225 BC, the birthplace of Paris, then known as Lutetia, and during the medieval period, the heart of the city.

The bridge was opened to traffic in 1604 and completed in July 1606. The bridge had heavy traffic from the beginning. It was, for a long time, the widest bridge in Paris. It has undergone much repair and renovation work, including rebuilding of seven spans in the long arm and lowering of the roadway by changing the arches from an almost semi-circular to elliptical form (1848–1855), lowering of sidewalks and faces of the piers, cornices, and replacing crumbled corbels as closely to the originals as possible. In 1885, one of the piers of the short arm was undermined, removing the two adjacent arches, requiring them to be rebuilt and the foundations strengthened. A major restoration of the Pont Neuf was begun in 1994 and was completed in 2007, the year of its 400th anniversary.

In 1862, Édouard Fournier traced the history of the bridge in his two-volume "Histoire du Pont-Neuf". He describes how, even before it was completed, gangs hid out in and around it, robbing and murdering people. It remained a dangerous place even as it became busier. For a long time, the bridge even had its own gallows.

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