The Verkhnevolzhsky Beyshlot is a dam in the upper reaches of the Volga River, forming the Upper Volga Reservoir, which unites the Lake Volgo, Lake Peno, Lake Vselug and Lake Sterzh into a single basin. Located 5 km below the place where the Volga flows from Lake Volgo.
The length of the dam is 46 meters, the average annual flow of water is 29 m³ / s, the annual fluctuation of the upper beech level is up to 3.5 meters, the lower one is about 0.1 m.
It was built in 1843 during the construction of the Vyshnevolotskaya system. The dam was made of wood, on a stone foundation. With the construction of a dam regulating the runoff in the headwaters of the Volga, the conditions for navigation to low water have been improved due to releases of water reserves accumulated in high water.
In 1941, during the Great Patriotic War, the dam was blown up by the Nazis, in 1943 it was rebuilt in concrete structures, in honor of this there is a commemorative stele near the dam.
The dam operates to this day, is under protection. Passage to the dam, photo and video near the object is prohibited. Access to the bayslot on cars is prohibited.