Lake Sukhodolskoye

Infobox lake
lake_name = Lake Sukhodolskoye
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location = Priozersk District, Leningrad Oblast
coords = coord|60|40|29|N|30|14|42|E|region:RU_type:waterbody|display=inline,title
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outflow = Burnaya River
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basin_countries = Russia
length = 40 km
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Lake Sukhodolskoye ( _ru. Суходольское озеро, _fi. Suvanto) is a large 40 km long lake on the Karelian Isthmus located in Priozersk District of Leningrad Oblast, Russia. It is a part of the Vuoksi River basin, constituting its southern armlet, and drained by Burnaya River.

Originally waters of Lake Suvanto (Lake Sukhodolskoye) quietly flowed into Vuoksi through a waterway at Kiviniemi. However, in 1818 the channel that had been dug to drain spring flood waters from Suvanto into Lake Ladoga unexpectedly turned into Taipaleenjoki (Burnaya River), which started draining Suvanto and decreased its level by 7 m. The Kiviniemi waterway dried out. In 1857 the channel was dug there, but the stream reversed direction, revealed rapids and rendered navigation at Kiviniemi impossible. Since 1857 Lake Sukhodolskoye and Burnaya River have constituted the southern armlet of Vuoksi River, which has decreased the level of the original northern armlet flowing through Priozersk by 4 m.