Hirose Dam

Overview

Hirose Dam is a rockfill dam standing 75 meters high with a crest length of 255 meters, built across the Fuefuki River in the Fujikawa river system in Yamanashi City, Yamanashi Prefecture. Managed by the prefecture, it is a multipurpose dam serving flood control, irrigation, water supply, and power generation. The reservoir set among green mountains and the massive stone-piled embankment create a quiet landscape typical of the upper Fuefuki valley.

Highlights

• ●An imposing rockfill embankment 75 meters tall
• ●Quiet reservoir views in the upper Fuefuki valley
• ●A multipurpose dam covering flood control to power
• ●Mountain scenery mirrored on the reservoir surface

History

Construction began in 1965 and was completed in 1974. The dam has a catchment area of about 76.6 square kilometers, impounds roughly 55 hectares of water at full pool, and can store about 14.3 million cubic meters. Built to protect downstream communities from flooding and to secure water resources, it has long supported the daily life and farmland of the Fuefuki basin.

Map

35.8392, 138.7639 · Wikidata

Suggested itinerary

1. 1Drive from central Yamanashi City up the Fuefuki River
2. 2Take in the scale of the reservoir from the embankment
3. 3Photograph the ridgelines reflected on the water
4. 4Stop for local fruit or a hot spring on the way back

Did you know?

💡 The rockfill design, built by piling up stone and rock, is valued for combining durability with harmony against the surrounding terrain. Its role as a multipurpose dam handling both flood control and water utilization is another distinctive feature.

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