Yamada Weir, Chikugo Travel Guide

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Discover the historic Yamada Weir in Asakura, a remarkable Edo-era irrigation system and a model for sustainable water management.

The Yamada Weir is a historic weir in Asakura, Fukuoka, dating back to the Edo period. It's the only remaining weir of its kind in Japan, diverting water from the Chikugo River to irrigate surrounding rice fields and serving as a model for sustainable water management.

A brief summary to Yamada Weir

Yamada, Asakura, Yamada, Fukuoka, 838-1306, JP
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From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring Yamada Weir.

Visit early morning or late afternoon for the best light and fewer crowds.
Wear comfortable shoes, as exploring the area is best done on foot.
Visit the adjacent Mizu Shrine for a panoramic view of the weir.

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Getting There

Public Transport

From Fukuoka, take a bus from Hakata Bus Terminal to Amagi IC. Buses depart every 15 minutes, and the journey takes approximately 57 minutes, costing between ¥700 and ¥1600. From the Amagi IC bus stop, take a local bus towards Yamada. Get off at the Yamada stop, a short 10-minute walk to the weir.
Car

From Fukuoka Airport, it's approximately a 35-minute drive to Yamada Weir. Take the highway and exit at Amagi (甘木), Asakura (朝倉) or Haki (杷木). Follow the signs to Yamada Weir. Free parking is available at Konomaru Park, near the weir.

Discover more about Yamada Weir

Yamada Weir, located in Asakura City, Fukuoka Prefecture, is a remarkable feat of engineering and a testament to sustainable water management practices dating back to the Edo period. Completed in 1790, the weir stands as the only remaining example of its kind in Japan, showcasing the ingenuity of traditional Japanese construction techniques. The weir's primary function is to divert water from the Chikugo River, the longest river in Kyushu and one prone to flooding, to the surrounding rice fields, irrigating a total of 652 hectares.The design of the Yamada Weir is particularly noteworthy. Built at a 20-degree angle to the river's current, the weir effectively alleviates the Chikugo River's water pressure and helps to control flooding. Constructed with carefully laid stones without the use of large-scale equipment, the weir demonstrates an eco-friendly approach to water management.In 2014, the Yamada Weir was recognized as a World Heritage Irrigation Structure by the International Irrigation Drainage Committee (ICID). The weir also served as a model for Dr. Tetsu Nakamura, who replicated its design to construct irrigation channels in drought-stricken Afghanistan. A monument dedicated to Dr. Nakamura stands at the Yamada Weir.Visitors to the Yamada Weir can appreciate the beauty and functionality of this historical structure, as well as its significance in both local and international contexts. The adjacent Mizu Shrine, established in 673, offers a panoramic view of the weir.