The IAHR Regional Hydro-Environment Heritage Award is conferred by IAHR during one or more of the Asia and Pacific Division Congresses on a local infrastructure of lasting and international importance. It has the purpose of giving international professional recognition to the work of local hydro-environment engineers, and should demonstrably have stood the test of time and be accepted and valued nationally.
The Water Heritage Award in IAHR-APD 2020 was awarded to;
(1) Award for Sayamaike Reservoir
This facility has been developed in the ancient period for providing an irrigation water to the Osaka Plain using channel network and reservoir cascade system and been reinforced and heightened repeatedly to increase the reservoir capacity with the expansion of the irrigation area and is still being utilized in the area.
Osaka-Sayama City, Japan and Osaka Pref., Japan
(2) Award for Tatsumi Aqueduct
This facility has been developed in the early modern period for supplying water as fire protection, drinking water, pouring water into a moat, and water for agriculture using tunnel and inverted siphon technology and is still being utilized in the area.
Tatsumi Aqueduct Land Improvement District, Japan, Kanazawa City, Japan and Ishikawa Pref., Japan
(3) Award for Flood controls and water utilization facilities in the Ishikari River basin
This facility has been developed in the late modern period for transforming cold region peatlands into rice cultivation areas, leading to the formation of a major economic zone and is still being utilized in the area.
Hokkaido Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism, Japan and Hokkaido Government, Japan