It is 18.4 metres (60 ft) tall, is Japan's first rock-fill embankment dam, and is intended to prevent damage to farmland from flooding.

In the case of Kobuchi Dam, the upstream side is covered with a concrete cement surface making it a concrete-face rock-fill dam.

From Kani Station on the Taita Line, there is a bus on Tohtetsu's Kukuri Line which stops at a bus stop named Kobuchi Dam, which is right next to the dam itself.

A park was created in vicinity of the reservoir which is known for its cherry blossoms in spring and fall colors in autumn.

The Tōkai Nature Trail extends through the area.