Sagae Dam

Overview

Sagae Dam is a 112-meter-high rockfill dam built on the Sagae River, part of the Mogami River system, in Nishikawa, Yamagata Prefecture. Managed by the Ministry of Land, Infrastructure, Transport and Tourism, it serves flood control, water supply, and hydroelectric power generation. It is the largest dam in Yamagata Prefecture.

Highlights

• ●A rockfill dam 112 meters high and 510 meters long at the crest
• ●A multipurpose dam for flood control, water supply, and 75,000 kW of hydroelectric power
• ●Gassan Lake, the reservoir selected among Japan's noted dam lakes
• ●The largest dam in Yamagata Prefecture, managed together with Shirakawa Dam

History

Construction began in 1972 and was completed in 1990. Built as a national multipurpose dam under the Ministry of Land, Infrastructure, Transport and Tourism, it was developed for flood control of the Sagae and Mogami rivers, water supply to the Murayama region, and hydroelectric power. It is managed comprehensively together with Shirakawa Dam.

Map

38.4553, 140.0386 · Wikidata

Suggested itinerary

1. 1View the body of the 112-meter-high rockfill dam
2. 2Stroll along the shore of Gassan Lake, one of Japan's noted dam lakes
3. 3Take in the scale of the dam, which measures 510 meters across the crest
4. 4Explore the surrounding nature and nearby town area

Did you know?

💡 The man-made reservoir formed by the dam was named Gassan Lake after nearby Mount Gassan.

Nearby spots