Mishima Dam

Overview

Mishima Dam is a gravity concrete dam in Yamaguchi Prefecture, Japan. Standing 31 meters high with a crest 300 meters long, it serves the twin purposes of flood control and water supply. It is not a flashy sightseeing spot, but the trim dam wall set among the hills and the calm surface of its reservoir make a quiet, restful stop for travelers who enjoy visiting civil-engineering structures or strolling by peaceful water.

Highlights

• ●A gravity concrete wall 31 meters high and 300 meters long
• ●Dual role of flood control and water supply
• ●The calm reservoir surface set among the hills
• ●The sense of scale when viewed as a civil-engineering work

History

Construction of Mishima Dam began in 1992 and was completed in 2001. Its catchment area is a modest 0.4 square kilometers; when full, the reservoir covers about 1 hectare and can store roughly 125,000 cubic meters of water. Built to provide local flood control and water supply, the dam's detailed history can be confirmed through the managing authority's official information.

Map

34.7700, 131.1542 · Wikidata

Suggested itinerary

1. 1Reach Mishima Dam in the hills by car
2. 2Take in the scale of the dam wall
3. 3Stroll by the quiet reservoir and enjoy the surrounding nature
4. 4On the way back, stop at nearby scenery or a roadside station

Did you know?

💡 A height of 31 meters and a crest length of 300 meters give this dam a notably long, low profile for its size. The roughly decade-long build, from the 1992 start to the 2001 completion, speaks to the story of a structure raised in a quiet valley.

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