Marunuma Dam

The dam features a distinctive grid pattern wall with supporting buttresses, rising 32.1 meters high and extending 88.2 meters across the waterway.

The construction of Marunuma Dam began in 1928 under the direction of Nagaho Mononobe, marking a period of infrastructure development in early 20th century Japan.

The Japan Society of Civil Engineers recognized Marunuma Dam as a Civil Engineering Heritage site, highlighting its role in Japanese industrial development.

The structure maintains a water storage capacity of 13.6 million cubic meters, supporting local power generation and water resource management throughout the region.

Among the eight buttress dams built during the Taisho and early Showa periods in Japan, Marunuma stands as the largest of the six remaining structures.

Location: Katashina

Inception: 1928

Height: 32.1 m

Length: 88.2 m

Website: https://tepco.co.jp/rp/business/hydroelectric_power/mechanism/dam/list/marunuma.html

GPS coordinates: 36.82389,139.33972

Latest update: May 11, 2025 07:08