Isaakiyevsky (Saint Isaac’s) Bridge Existed from 1727 until 1916. Bridge width: 18. 1 m. From 1856 until 1912 the bridge was on the spot of today’s Palace Bridge.
Blagoveshchensky (Annunciation) Bridge Opened in 1850. Bridge width: 38.07 m., total length: 349.8 m. Architect – A. P. Brullov. Engineer – S. V. Kierbedź.
Palace Bridge Opened in 1916. Bridge width: 31.6 m., total length: 267.5 m. Architect – R. F. Meltzer. Engineer – A. P. Pshenitsky.