
Guida
Tsujunkyo is a stone arch aqueduct approximately 78m long and 21.3m high, completed in 1854 to secure agricultural water for the Shiraito Plateau. It is part of the 'Tsujun Waterway' system, which transports water from the north through tuff pipes installed on the bridge to the Shiraito Plateau in the south. Even today, it remains an active, functional waterway, nourishing approximately 100 hectares of rice fields on the plateau.
Built in 1854 during the late Edo period, this bridge was designed to irrigate the Shiraito Plateau, which is surrounded by rivers on all sides. In terms of the diameter of its stone arches and its overall height, it is one of the largest stone bridges of its kind from the Edo period in Japan. Despite suffering damage from the 2016 Kumamoto Earthquake and subsequent heavy rains, the bridge underwent extensive preservation and repair work, and the water discharge ceremony successfully resumed in 2020. It stands as a testament to the wisdom and engineering skills of the ancestors who supported the region's agriculture for generations.

The greatest spectacle is the 'Water Discharge' (Housui) performed through the outlet in 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 performed at scheduled times for tourists. During the discharge, water erupts powerfully from the pipes on the bridge, offering a stunning view of the movement of water against the natural landscape. The stone arch structure itself is also a significant element, showcasing advanced civil engineering techniques of the era.
The water discharge at Tsujunkyo typically occurs once a day, starting around 1:00 PM for approximately 15 minutes. The discharge season generally begins in early April, with schedules set according to the season. By timing your visit to coincide with the discharge, you can witness the powerful rush of water. Additionally, on discharge days, visitors can view the bridge from above for a fee between 10:00 AM and 3:00 PM.
Walking on the bridge itself, known as 'Kyojo Kanran' (Bridge-top Viewing), is an experience exclusive to discharge days. To view the water from above, you must purchase a viewing certificate at the 'Tsujunkyo Miel Terrace' local specialty shop located in front of the bridge. This provides a unique opportunity to see the water flow up close and understand the functional beauty of the aqueduct. Please note that the discharge schedule and availability may change due to weather conditions.
The area around Tsujunkyo is rich in the natural beauty of Yamato Town. The 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. These events represent the local cultural heritage. Nearby, you can also find natural spots such as Goro Falls, which features a 50m drop.
While the area is surrounded by nature, it is recommended to wear comfortable walking shoes for exploring the bridge and surroundings. Please be aware that water splashes may occur during the discharge ceremony.