Kawachi Reservoir is the first-class civil construction heritage that triggered the registration of
World Cultural Heritage of Meiji Japan’s Industrial Revolution.
The Kawachi Reservoir was constructed for the industrial water supply to Yawata Steel Works.
The dam was constructed at the Okura River and upper stream of the dam was expanded and making
the 7milion cubic metre reservoir.
Specification of the dam
・height : 43.1 metre
・Width : 189 metre
In the construction of the dam, the unprecedented design in the world has been applied in order to
harmonize with nature and to save the construction cost. The stones come out from the mountain
when the river was expanded have been utilized for construction of the dam.
All stones are cut into sizes and shapes by the stone technicians according to the place of use.
The large size stone were used at the main construction of the dam and the small size stones were
used for other places as per size and shape. Construction was started in 1919 and was completed
in1927 by 900 thousand total number of workers.
Minami Kawachi-bashi bridge
This shape and color really harmonize with nature and become a symbol of the Iron town Yahata.