2. Sampsonievsky Bridge across the Bolshaya Nevka River 9.20.2014

Sampsonievsky Bridge across the Bolshaya Nevka River 9.20.2014

From Saint-Petersburg.com:
Crossing the Bolshaya Nevka River next to the Cruiser Avrora, the Sampsonievsky Bridge (Сампсониевский мост) is a 212-meter, seven-span bascule bridge that dates in its current form from 1958. The original pontoon Grenadiers Bridge existed near this site until 1847. Wooden bridges were built and rebuilt on the site throughout the 19th and early 20th centuries. The current structure, fully renovated in 2000, consists of steel spans resting on granite-faced reinforced-concrete piers. The name refers to a nearby cathedral. The bridge was known as Freedom Bridge under Soviet rule.

5. Prachechny Bridge across the Fontanka River 9.20.2014

Prachechny Bridge across the Fontanka River 9.20.2014

From The St. Petersburg Encyclopedia:
The Prachechny Bridge (Прачечный мост) crosses the Fontanka River, where is meets the Neva, linking the Dvortsovaya Embankment and Kutuzova Embankment. The name of the bridge refers to Prachechny Yard (Laundry Yard, where the palace laundries were located) next to the Fontanka. The bridge, one of the first in St. Petersburg to be made of stone, was built in 1766-1769 (architects I.L. Rossi, T.I. Nasonov), when the stone embankments of the Fontanka were laid. The three-span arched bridge is made of granite. In 1926-1928, the bases of the piers were reinforced (engineer B.D. Vasilyev). The bridge is 40.9 metres long and 14.3 metres wide.