Tsujunkyo Bridge is Japan’s largest stone-arch aqueduct bridge, and it was constructed in 1854 by a local official Yasunosuke Futa in Yabe. The structural purpose was to supply water to the Shiraito Plateau where people suffered from water shortage at that time. The supply of water comes from the upper stream of the Sasahara River about 6 kilometers away. The total length of the water passage is approximately 30 kilometers, and the irrigated area covers an extensive, 100 hectares.

The bridge is capable of pouring out 15,000 square meters of water in 24 hours, if needed to irrigate the surrounding paddy fields. The recipient of the National Cultural Property in 1960 is well known for its water release during the Hassaku Festival. The length of the water passage is 126 meters; and the bridge measures at 75.6 meters in length, 6.3 meters in width, and 20.2 meters in height. The radius of the arch is 27.6 meters.