The Bolaq (Tatar Cyrillic: Болак; Russian: Булак, Bulak) is a canal that once flowed from the northern part of Birge Qaban to Kazanka (Qazansu), today is an isolated channel in downtown Kazan. The modern length of Bolaq is 1550 m, width is 24 m. As a street Bolaq, or, more correctly, Uñ yaq Bolaq/Pravobulachnaya and Sul yaq Bolaq/Levobulachnaya streets is a major arterial road in Central Kazan.
Read more about Bolaq: Etymology, Natural History of Bolaq, Human History of Bolaq, Historical Hydrology, 30 August