Protecting St Petersburg from floods

A Flood Protection Barrier has been constructed to protect Saint-Petersburg from flooding, and at the same time creating a motorway crossing over the Gulf of Finland as part of the Ring road around Saint-Petersburg and controlling water flow conditions and the ecological status of the Neva Bay.

Its total length is 25,4 km, of which 22,2 km is built across water. The structure consists of eleven protection dams, six water sluices, 2 navigation openings, and a 6-lane motorway with bridges, tunnel and traffic interchanges, passing along the crest of protection dams and approach channels to the navigation openings. Consulting services and technical supervision of the main engineering structures was carried out by JSC “Institute ”Strojproect” in consortium with “Royal Haskoning” and JSC “Geningconsult”.