In 1991, the banks of the river were classified as UNESCO cultural heritage site, and efforts began to turn the highways into parks and promenades. Beginning in 2008, a 2.3 kilometer section of the highway was permanently closed and made into the Promenade des Berges de la Seine, which was dedicated on June 19, 2013. The promenade includes five floating "islands", a total of 1800 square meters in size, placed atop barges, with trees, bushes, flowers and deck chairs.