Palace Bridge is one of the most recognizable symbols of the city. It connects the central part of the city and the Vasilevsky Island. The length of the bridge, 250 meters long, 27.7; consists of five proletov.Most pyatiprolёtny metal with an adjustable span between. Regular flights of two-span covered with metal riveted truss girder of a continuous system, with curved zones. When wiring the bridge balances fall into the wells of support, which are located at a depth of 6.0 meters below the normal level of water in the Neva. In cross-section span it consists of eight main trusses truss system with descending diagonals and curved bottom chord. The cross sections of elements of H-shaped and box. Within the length of the wing main beams interconnected by longitudinal and transverse links. wing weight – 700 tons, the mass balances -. 1,400 metric tons of unique swing bridge mechanism consists of a motor, the large gear (some of which are Solid, preserved with the opening of the bridge) and tysyachetonnyh protivovesov.Iznachalno suschestvoval only a pontoon bridge (from December 10, 1856 ), later in 1911, it was replaced by more familiar to us, cast-iron. railing lattice appeared only in 1939. These lattice cast by sculptor JV Krestovsky a drawing by architect L. A .Noskova. The proposed project larger decorated with eagles lampposts on the supports of the bridge and were not ustanovleny.Most was renovated in 1967. In 1977, it redesigned by architect Yu Tits and MV Vinnichenko and engineers TD Ivanova, VI Botvinnik. Reconstruction underwent lights, flooring, bascule. In 1997 the bridge was reconstructed under the supervision of an engineer Yuri Petrov. In 1994 godusnyaty tram puti.K 2008, according to Mostotrest, Palace Bridge has exhausted its resources. However, major overhaul of its delayed until construction of a new bridge to Vasilyevsky Island through a sulfur island, construction of which is frozen at the behest of the new governor .tak way repair the Palace Bridge was launched October 21, 2012, without the erection of temporary crossings, which greatly complicated the already tense transport situation on Vasilyevsky island. October 19, 2013 was opened after reconstruction.