The Tirlyan ( ba, Тирлән, ''Tirlän'') is a river in Russia, that flows in

Beloretsk Beloretsk (russian: Белоре́цк; ba, Белорет, ''Beloret'') is a town in the Republic of Bashkortostan, Russia, located on the Belaya River, from Ufa. Population: History Town-factories were a peculiar phenomenon in the town- ...

district A district is a type of administrative division that, in some countries, is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or county, counties, several municipality, municipa ...

Bashkortostan The Republic of Bashkortostan or Bashkortostan ( ba, Башҡортостан Республикаһы, Bashqortostan Respublikahy; russian: Республика Башкортостан, Respublika Bashkortostan),; russian: Респу́блик� ...

. The mouth of the river is located in 1,363 km along the right bank of the Belaya. The length of the river is 46 km, the catchment area is 529 km².«Река Тирлян»
Russian State Water Registry

Geography and hydrology

In the estuary area on the river there is a single settlement, the village of

Tirlyan Tirlyansky (russian: Тирлянский; ba, Тирлән, ''Tirlän''), also known as Tirlyan, Tirlian and Bashkir Tirlan, is a village in the Beloretsky District of Bashkortostan, the center and the only settlement of the Tirlyansk soviet. It ...

sky. At 3 km from the estuary, in the area of the reservoir, the left bank tributary of Arsh flows into the river. In 20 km from the estuary, along the left bank another large tributary of Misel flows into. Other tributaries are the Stone Key, the Big Key, the Black Klyuch, the Bezymyanka. The river takes its source in the Zhuravlin Marsh located under the Yalangas ridge (1297.9 m), between the Ustinskaya mountains (Устинская) (865.9 m) and the Tikhaya (Тихая) (774.4 m). According to the state water register of Russia the river belongs to the Kamsky basin district, the water sector of the river is attached to the Belaya district from the source to the Arsky Rock gauging station, and the river sub-basin of the Belaya.

Tyrlyansk Reservoir

Tyrlyansk Reservoir On the river there is the Tyrlyansk Reservoir, best known for its flooding on August 7, 1994, which led to devastating consequences. The Tyrlyansk Reservoir is located at and was formed on the Tirlyan River as a result of the construction of a dam for the needs of recreation, fish farming,

flood mitigation In environmental engineering, the flood mitigation involves the management and control of flood water movement, such as redirecting flood run-off through the use of floodwalls and flood gates, rather than trying to prevent floods altogether. It a ...

, and power generation. The area of the lake is 129.3 ha. The height above

sea level Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardise ...

is 195 m. Despite the modest catchment areas of the river, this reservoir is known for its disastrous breakthrough on August 7, 1994. This abnormal discharge of 8,600,000 m³ of water is still considered one of the most damaging consequences of the Russian Federation. In a heavy rain, which lasted from 5 to 8 August, the dam was flooded and washed away. As a result of this accident, 4 settlements (

sky, Shushpa, Katayka and

) were flooded, 85 houses were completely destroyed, 200 houses damaged, 29 people were killed, 786 people were left homeless.The Tirlyan Breakthrough,

Moscow News ''The Moscow News'', which began publication in 1930, was Russia's oldest English-language newspaper. Many of its feature articles used to be translated from the Russian language '' Moskovskiye Novosti.'' History Soviet Union In 1930 ''The ...

, August 19, 1994. The break occurred because locks did not work and therefore could not be opened.

References

{{reflist Rivers of Bashkortostan