Ulaanbaatar
Tuul Water Complex Project to Enable Storage of 50 Mln Cubic Meters of Water
Environment
Ulaanbaatar, January 21, 2026 /MONTSAME/. The Capital City Governor’s Office is planning to implement the Tuul Water Complex Project to collect rainfall and surface water.
An appropriate location for the complex has been selected in
the upper reaches of the Tuul River at an elevation of 1,352 meters above sea
level. According to the Capital City Governor’s Office, the site is close to
the capital city, which will shorten the length of water transmission pipelines
and reduce investment costs. In addition, the project will not affect protected
forest areas or wildlife habitats. Engineering and geological studies have
determined that the dam axis will be positioned perpendicular to the river
flow, creating favorable natural conditions for self-cleaning by reducing
sediment accumulation.
To cover a total area of 5,569 square meters, the water
complex will feature integrated infrastructure, including a reservoir, water transmission
networks, and water treatment facilities. The reservoir dam will be 685.15
meters long and 35.8 meters high, with a maximum water depth of 19.84 meters.
Exposed natural rock formations on the eastern bank and solid bedrock on the
western bank are expected to provide favorable geological conditions, ensuring
the structure’s stability and durability.
Once commissioned, the Tuul Water Complex will supply 50
million cubic meters of water annually for the capital’s needs and will also be
able to store an additional 50 million cubic meters of water during periods of
heavy rainfall. This will ensure a reliable water supply for the city’s growing
population, help protect the Tuul River ecosystem, and support river flow
during drought years, making the project strategically important.
Currently, Ulaanbaatar’s drinking water supply relies solely
on deep groundwater sources, which carry the risk of depleting reserves.
Experts have also warned that allowing rainwater to run off without storage
contributes to water resource losses and increases flood risks.
