Karl Marx St., 1/1, Saint Petersburg, Russia, 197760
The construction of the bridge began in 1791. The work was carried out by the Petrozavodsk merchant F. Bekrenev. The construction was completed by June 1794. The bridge was wooden, drawbridge-type, with a chain lifting mechanism. During construction, it was painted green, but later the color was changed to blue. In 1840, at the suggestion of hydrographer Reineke, a mark corresponding to the average water level of the Gulf of Finland based on observations from 1825–1839 was applied on the stone abutment of the Blue Bridge. This mark was aligned with the zero of the Kronstadt tide gauge, from which depth and height measurements in Russia are taken.
In 1874, the bridge was rebuilt according to the design of Lieutenant Colonel Petrovsky. The new bridge became a pivoting iron bridge with a wooden deck and pedestrian walkways on both sides. During construction, the bridge’s fenders were dismantled down to the water level, which resulted in the loss of the water ordinance cut made by Reineke in 1840. The metal structures of the bridge were installed by the Archimedes factory in St. Petersburg, the stonework was carried out by the Tsarskoye Selo merchant Ya. Brunov, and the gas lamps for the bridge were installed by the Kronstadt Gas Factory. The construction was completed by the summer of 1875.
In 1964, the bridge underwent major repairs.
On May 8, 2005, to commemorate the 60th anniversary of the victory in the Great Patriotic War, a monument to the blockade stickleback was unveiled on the wall of the Obvodny Canal embankment near the Blue Bridge.
The bridge is a three-span metal structure. The core of the bridge consists of a pivoting drawbridge metal riveted span structure from 1874. The drawbridge span covers the left-bank (6.65 meters) and middle (11.1 meters) spans. The space between the left-bank abutment and the intermediate support, where the pivoting device with the counterweight of the drawbridge span is located, is covered by a solid arch made of limestone. The right-bank span of the bridge (5.66 meters) is covered by a beam span structure made of rolled I-beams. The single-leaf riveted drawbridge span structure consists of I-beams connected by transverse ties. On the facades, two continuous metal beams 23.4 meters long are installed. The facade beams have a height of 1.0 meter in the span and 1.252 meters on the intermediate supports. On the upper flanges of the beams, a roadway slab made of precast reinforced concrete slabs is laid. The supports are massive stone, faced with granite. The total length of the bridge is 23.8 meters, width — 10.25 meters.
The bridge is intended for vehicular and pedestrian traffic. The roadway includes 2 lanes for vehicle traffic. The surface of the roadway and sidewalks is asphalt concrete. The sidewalks are separated from the roadway by a granite curb. The railing fences are cast iron artistic castings, identical to the railings of the Red Cadet Bridge over the Zhdanovka River in St. Petersburg.

Granite parapets are installed on the wing walls of the abutments. On the north facade of the bridge, a bronze memorial plaque reading “3.67 m. 1824” (water level during flooding) is installed.
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Egyptian Bridge, Fontanka River, Saint Petersburg, Russia, 190068
Hermitage Bridge, Winter Canal Embankment, Saint Petersburg, Russia, 191186
Griboedov Canal Embankment, 32, Saint Petersburg, Russia, 191186
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