The Kashin Bridge is a hingeless vault bridge across the Kryukov Canal in the Admiralteysky District of Saint Petersburg, Russia. The bridge connects Kolomensky and Kazansky Islands.

Staro-Nikolsky Bridge spans the Kryukov Canal in the Admiralteysky District of Saint Petersburg, Russia. It connects the Spassky and Pokrovsky Islands. It is a monument of history and culture.