Guide
Tsuyun Bridge is a stone arch aqueduct approximately 78m long and 21.3m high, completed in 1854 (Kaei 7) to secure agricultural water for the Shiraito Plateau. As part of the "Tsuyun Suido" waterway system, it utilizes a tuff stone pipe installed above the bridge to transport water from the north to the Shiraito Plateau in the south. Even today, it remains a functional and vital piece of infrastructure, irrigating approximately 100 hectares of rice fields.
Built during the late Edo period, this bridge was designed to irrigate the Shiraito Plateau, which is surrounded by rivers on all sides. It is one of the largest stone bridges of its kind in Japan, noted for its massive diameter and height. Although the structure suffered damage during the 2016 Kumamoto earthquake and subsequent heavy rains, it underwent extensive preservation and repair work, allowing the water discharge to resume in 2020. It stands as a testament to the ingenuity and engineering skills of the people of the Edo period.
The greatest spectacle is the "water discharge" (housui) from the center of the bridge. While the original purpose of this process is to clear mud and sand from the stone pipes, it is now a scheduled event for visitors. During the discharge, water gushes powerfully from the pipes above the bridge, creating a stunning visual display against the natural landscape. The massive stone arch structure itself is a remarkable feat of historical civil engineering.
The water discharge typically occurs once a day, starting around 1:00 PM for approximately 15 minutes. The discharge season generally begins in early April, with schedules varying depending on the time of year. To witness the powerful rush of water, it is highly recommended to time your visit around the scheduled discharge time. On designated discharge days, you can also purchase a pass to view the scene from the top of the bridge between 10:00 AM and 3:00 PM.
"Bridge-top viewing" is a special experience available only on discharge days. To view the water from the top, you must purchase a viewing certificate at the "Tsuyun Bridge Miel Terrace" local specialty shop located in front of the bridge. This provides a close-up view of the water's power and a better understanding of the bridge's function. Please note that the discharge schedule and viewing availability may change due to weather conditions.
The area surrounding Tsuyun Bridge is rich in natural beauty. Yamato Town is also home to the "Three Great Festivals of Yamato," including the Hibushi Jizo Festival, Hassaku Festival, and Seiwa Bunraku no Sato Festival, held between late August and mid-September. Additionally, the nearby Goro Falls, which features a 50m drop, is a beautiful natural spot to explore.
While the area is naturally beautiful, we recommend wearing comfortable walking shoes for exploring the bridge and surrounding paths. Be aware that water splashes may occur during the discharge process.