Tateiwa Dam

Overview

Tateiwa Dam is a power-generation dam built at the uppermost reaches of the Ota River, a Class A river, in Uchinashi, Akiota-cho, Yamagata District, Hiroshima Prefecture. Managed by the Chugoku Electric Power Company, it is a 67.4-meter gravity concrete dam, the tallest ever built on the main stream of the Ota River.

Highlights

• ●A 67.4-meter gravity concrete dam
• ●A power-only dam at the top of the Ota River's main stream
• ●Selected as a Civil Engineering Heritage site
• ●Scenery of the reservoir, Lake Ryujin

History

Because it ranked as the seventh-tallest dam in Japan among those completed before World War II, it has been selected by the Japan Society of Civil Engineers as one of the "2000 Selected Important Civil Engineering Structures" under its Civil Engineering Heritage program. Together with the Odomari Dam on the Takiyama River and the Tarudoko Dam on the Yuragi River, it is collectively known as one of the "Three Dams of the Ota River," reflecting its role in the region's power supply history.

Map

34.5444, 132.1640 · Wikidata

Suggested itinerary

1. 1View the dam body from the surrounding roads in Uchinashi, Akiota-cho
2. 2Enjoy the view over the water from the shore of Lake Ryujin
3. 3Combine the visit with the other dams of the Three Dams of the Ota River
4. 4Photograph the mountain scenery in each season

Did you know?

💡 The reservoir created by the dam is named Lake Ryujin. As one of the "Three Dams of the Ota River," it is often discussed alongside the Odomari and Tarudoko dams within the same river system.

Nearby spots