The Lion Bridge is in the Admiralteysky District of St. Petersburg, connecting the Kazansky and Spassky Islands.

Its abutments are crowned with four cast iron sculptures of lions, which give the bridge its name.

The structure, suspended by cables emerging from the mouths of lions, was constructed in 1825 according to the design of two well-established bridge builders, Wilhelm von Traitteur and Basil Christianovicz.

Until 1912, the bridge was also called Mariinsky (after the former name of Lion Lane) and Teatralny pedestrian (along Teatralnaya square located nearby).

The need to build a bridge was caused by the growth of population in the area adjacent to the Catherine Canal [9].

Simultaneously with Lvin, a project was drawn up for the second chain pedestrian bridge across the canal - Bankovsky.

The manufacture of cast iron and metal parts, as well as the assembly of elements at the construction site, was carried out by the Byrd plant [3].

Work on the creation of the models lasted from May to September 1825, and the sculptor also made alabaster molds [5].

In 1948, by engineer A. M. Yanovskiy, a major reconstruction of the bridge was carried out including the replacement of wooden longitudinal beams with metal I-beams [11].

In 1954, a new handrail and lanterns were installed on the bridge, made according to the original project, the white color of the lion sculptures was restored (after a series of unsuccessful dark paints) [5].

In 1999-2000, according to the project of JSC Institute "Stroyproekt," the bridge was overhauled: the beams of the superstructure were replaced, the sculptures of lions were restored [16].

In 1838, a reduced copy of the bridge (length 17.3 m, width 2 m) was erected by the firm Borsig for the project of the German architect LF Hesse on territory of Berlin's Great Tiergarten park.

Unlike the original in St. Petersburg, the superstructure and railings of the Berlin Lion Bridge are still wooden.

The superstructure consists of two welded double-tee beams made of low-alloy steel, combined with a chain hanging system with a distribution strip [16].

The function of the pylons is performed by the sculptured cast iron frames (frames), attached with anchor bolts through the masonry to a wooden grille, compressed from above and below by massive cast iron slabs, to which supporting chains are attached [19] [10].

A monolithic reinforced concrete slab was built under the pylons within the boundaries of the cast iron pedestals of the sculptures [16].

The railing is of artistic casting, and the design is a grid of a continuous rows of crossed rectangular rods, the ends of which at the top and bottom are connected by semicircular arcs of the same cross-section in the form of stylized eights, forming places for semicircular bronze rosettes [11].

In the middle of the bridge, two multifaceted lanterns on cast iron posts rich in molding are mounted in the railings.

On the approval of the protective obligation of the Owner or other legal owner of the object of cultural heritage of federal significance "The Lion's Bridge", included in the unified state register of cultural heritage monuments of the peoples of the Russian Federation.

Implementation of a set of measures for the restoration of museum items: 4 sculptures of lions (inv.

43 / 1-4) located on the Lion Bridge across the Griboyedov Canal in St. Petersburg // Unified information system in the field of procurement.