Onega Canal Onega Canal The Onega Canal () is a canal that runs along the southern banks of Lake Onega in Vytegorsky District of Vologda Oblast and Podporozhsky District of Leningrad Oblasts in Russia. It was built 1818 - 1820 and 1845 - 1852 as a part of Mariinsk Canal System, to allow small riverboats to avoid Lake Onega, where storms are frequent and where many boats had perished through the centuries. The canal is long and runs between the Vytegra River in the east and Svir River in the west. It is around wide, and lies between and from the shores
Lake Onega months. The highest water level is in June–August and the lowest is in March–April. Rivers bring of water per year to the lake, that is up to 74% of the water balance; the rest is provided by precipitation. Most of the lake water (84% or per year) outflows via a single River Svir, and the remaining 16% evaporates from the lake surface. There are frequent storms more characteristic of a sea than a lake; waves of are not uncommon and may even reach . The lake freezes near the coast and bays in late November and December and around mid-January