Sankt-Peterburgning dengiz darvozalari, Monument at Neva Bay, Saint Petersburg, Russia.
The Marine Gates of Saint Petersburg is a major engineering structure that spans across Neva Bay with multiple shipping channels and transport passages. The complex connects several areas through a combination of dikes, tunnels, and elevated roadways.
Construction started in 1978 and faced interruptions during the 1990s before final completion in 2011. This long timeline reflects changing priorities and economic shifts over three decades.
The Marine Gates integrate with the Northern Forts of Kronstadt, forming part of the UNESCO World Heritage Site that includes Saint Petersburg's historical monuments.
Access to the structure varies depending on weather and seasonal conditions, so checking conditions beforehand is helpful. Clear navigation aids and designated viewing areas make exploration straightforward.
This structure includes Russia's longest underwater road tunnel and protects Saint Petersburg from water level rises up to 5 meters.
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