The bridge was built in 1774. It gained its name because of its columns, pedestals and carved balusters made of Ural marble.
More information at tsarselo.ru (Russian) http://tsarselo.ru/content/21/read136.html#.U-oPpqOTJs4
Address (Unnamed Road), Пушкин 196600, Russia
Coordinates 59°42'36.941" N 30°23'20.952" E