The History of Kakihara Weir
Construction in the Meiji Period
The history of Kakihara Weir began in 1907, when a temporary weir was constructed by the Kinen Itana Ordinary Water Users’ Association, the predecessor of the Itana Irrigation Land Improvement District. Its purpose was to draw water from the Yoshino River for the surrounding farmland.
At the time, the river’s course differed from its present form, and repeated floods and natural changes made maintaining the weir a considerable challenge. Through the efforts of the local community, the structure was gradually improved to provide a more dependable water supply.
Expansion and the Stone Weir
In 1919, a weir extending approximately 1.15 kilometers was completed. Further modifications were needed to accommodate changes in the riverbed and the flow of the river. In 1926, the structure was rebuilt and expanded as a stone weir measuring approximately 750 meters in length. This stonework remains a defining feature of Kakihara Weir and reflects the engineering efforts undertaken to manage the Yoshino River’s powerful flow.
Water for Agriculture and Daily Life
Kakihara Weir diverts water from the Yoshino River to irrigate nearby farmland, supporting the cultivation of local crops. The water is also used for drinking-water supplies, making the weir an important part of the region’s infrastructure. During the hot summer months, when demand for water increases, its role in sustaining both agriculture and everyday life becomes especially significant.
A Popular Destination for Ayu Fishing
The Yoshino River is well known for ayu, or sweetfish, and Kakihara Weir is a popular fishing spot. When the ayu fishing season opens in June, anglers from Tokushima and other parts of Japan gather along the river to enjoy the sport.
The river’s abundant water and flowing currents provide a suitable habitat for sweetfish and other freshwater species. Fishing locations can be found around the weir, making the area an appealing destination for anglers who want to experience the natural beauty of the Yoshino River while enjoying a traditional Japanese pastime.
Scenic Views and Traditional Stonework
One of the main features of Kakihara Weir is its long stone structure, completed in 1926. Carefully arranged stones have helped the weir withstand changing river conditions while directing water for local use. The structure offers a glimpse into the water-management techniques that supported rural communities in the early 20th century.
The surrounding landscape changes with the seasons. Fresh greenery brightens the riverbanks in spring and summer, while autumn brings warmer colors to the scenery. During the ayu fishing season, anglers along the river add activity and character to this otherwise peaceful riverside setting.
How to Get There
Kakihara Weir is approximately 15 minutes by car from JR Kamojima Station. Surrounded by the natural scenery of the Yoshino River, it is a pleasant place to pause while exploring the wider Awa area. Visitors planning to fish should check local fishing regulations and seasonal restrictions in advance.
Discover the Yoshino River’s Heritage
Kakihara Weir is more than a river structure: it is part of the history of how local communities have made use of the Yoshino River’s resources. Its stonework, role in irrigation and drinking-water provision, and reputation as an ayu fishing destination reveal the close relationship between the river and everyday life in Tokushima.
Visitors can appreciate the engineering heritage of the weir while enjoying the tranquil riverside landscape. Please respect local rules and fishing regulations, and take care around the water when exploring the area.