Trinity Bridge, Saint Petersburg

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Trinity Bridge
Тро́ицкий мост
Trinity Bridge in Saint Petersburg.jpg
Carries 4 lanes of roadway, tram lines
Crosses Neva River
Locale Saint Petersburg
Design Segmental bridge, bascule bridge
Total length 582 meters
Width 24 meters
Longest span 43 meters
Opened 1903, first half
Coordinates 59°56′55.51″N 30°19′38.66″E / 59.9487528°N 30.3274056°E / 59.9487528; 30.3274056

Trinity Bridge (Russian: Тро́ицкий мост, Troitskiy Most) is a bascule bridge across the Neva in Saint Petersburg, Russia. It connects Kamennoostrovsky Prospect with Suvorovskaya Square. It was the third permanent bridge across the Neva, built between 1897 and 1903 by the French firm Société de Construction des Batignolles. It is 582 meters (1,909 ft) long and 23.6 meters (77 ft) wide.

The bridge takes its name from the Old Trinity Cathedral which used to stand at its northern end. In the 20th century it was known as Equality Bridge (Russian: мост Ра́венства, 1918-1934) and Kirovsky Bridge (Russian: Ки́ровский мост, 1934-1999).

History and construction[edit]

In 1803 the Voskresensky ponton bridge, which was built in 1786 near Voskresensky Prospected (now Chernyshevsky Prospect), was moved to the Summer Garden. In 1825, the ponton Suvorovsky Bridge was built to link Suvorovskaya Square with Troitskaya (Trinity) Square.

In 1892 a contest for constructing a permanent Troitsky Bridge was announced. There were 16 entrants from Russian and European engineers, including one from the French engineer Gustave Eiffel, the creator of the famous Eiffel Tower in Paris. The winner was the out-of-competition design by Arthur Flachet, Vincent Chabrol, and René Patouillard from the French Société de Construction des Batignolles. Some contributions to their proposal were provided by a team of Russian engineers. A special commission from the Imperial Academy of Arts, including Leon Benois also participated in the project.

Construction began on 12 August 1897. Félix Faure, the president of France was present at the ceremony. In the same political spirit, Nicholas II of Russia laid the foundation stone for the Pont Alexandre III in Paris, another memorial to the Franco-Russian Alliance. The bridge was completed in 1903, in time for the 200-year anniversary of Saint Petersburg.

The Trinity Bridge is a landmark of Art Nouveau design

Originally the bridge had nine spans. Five of these were permanent metallic riveted spans, with novel console-arch-beam systems and gradually increasing span length from banks to the middle of the river. A three-arch granite viaduct linked the metallic central section to the right bank, and a two-winged bascule span joined it to the left bank. The design of the central spans, in which single uncut girders bridge more than one span, significantly relieves the stress on the central part of the arches, decreasing the support required in the river and giving the span structures a gentle arch shape. The bridge is decorated with cast iron gratings with artistic casting, granite pylons with lanterns and metallic three-colour lanterns in the Art Nouveau style.

The obelisks flanking the entrance to the bridge from Suvorov Square were remodeled in 1955. In 1965-1967 the bascule span was rebuilt as a one-winged, lifting design. Its length was extended to 43 meters (141 ft) and its appearance modelled on the other metal spans. A granite arch slope was set on the left bank. During the reconstruction water slopes were enlarged and granite benches were set along left bank abutment.

References[edit]

  • Yuriy Vladimirovich Novikov et al., Mosty i naberezhnye Leningrada, Lenizdat : Saint Petersburg (Russia), ISBN 5-289-00690-7

External links[edit]

Coordinates: 59°56′55″N 30°19′44″E / 59.94861°N 30.32889°E / 59.94861; 30.32889