KumamotoTravel

National Treasure Stone Arch Aqueduct Bridge Built by Edo-Period Stoneworkers

About this spot

A stone arch aqueduct bridge built in the Edo period by the hereditary village headman Honoda Hojinousuke and skilled stoneworkers from Kumamoto to deliver water to the water-scarce Shiraiio Plateau. It was the first bridge in Japan designated as a National Treasure. Stone pipes carved within the bridge's interior still carry water today, nourishing the plateau's fields. The paid bridge walkway allows you to walk atop the bridge itself, with spectacular views of the valley and rural mountains seen from directly above the arch. The dramatic water spray erupting from the bridge's center is a mechanism for expelling sand accumulated in the aqueduct, and witnessing it would become your trip's most memorable moment.

Tips

The bridge has no railings, so families with children must hold hands and stay away from the edges. Water-spraying does not occur daily; confirm the scheduled dates with Yamato Town information if you wish to see it. The stone surface can be slippery, so comfortable walking shoes are recommended.