20th Kamennoostrovsky Bridge

The 20th Kamennoostrovsky is located in the north of the Neva delta - Bolshaya Nevka and passes through its Small Canal. Big Nevka flows through almost the entire Stone, other Kamennoostrovsky bridges also pass through it. From its main channel, Nevka departs 500 meters below the Liteiny Bridge, divides the Petrograd and Vyborg sides and flows below Elagin Island into the Nevsky Bay. Petrogradsky, Elagin, Stone and Pharmacy Islands are washed by Big Nevka. The length of the river is about 8 kilometers, and the width is variable from 50 to 360 meters. The river is not very deep, the maximum depth is set at 8.3 meters. On the right side, the Black River flows into the Big Nevka, and from the left banks goes to Karpovka. At the end of the XVIII century began large-scale construction of pedestrian and transport bridges on the Stone Island.

The 20th Kamennoostrovsky belonged to beamed wooden 5-span bridges, its length was 20 m. Since 1938, many bridges have been dismantled to deepen and clean the Nevka Canal. The new bridge on iron-concrete piles was rebuilt later on the project of engineer Andreevsky.