1st Engineering Bridge

The 1st Engineering Bridge, which is an object of cultural heritage of Russia of federal significance, is located in St. Petersburg on the embankment of the Fontanka River. Built in 1824–1825 by engineers P. P. Bazaine and E. C. Clapeyron on the site of a crossing from the 1710s, it is an arch structure made of lightweight cast iron tubing, which allowed to reduce the use of expensive metal to one-third of the total mass. The railing installed on the bridge in 1826 according to the design of architect L. Charlemagne was later repeated for the southern fence of the Summer Garden. The bridge is part of a group of four crossings near the Field of Mars, spanning the Moika, Fontanka, and the Swan Canal, and is located upstream of the Moika from the 1st Sadovy Bridge.