Oshio Dam

The Oshio Dam reaches a height of 31.9 meters and extends 250.6 meters across the landscape, featuring a design that incorporates natural materials for water containment.

Engineers completed the construction of Oshio Dam in 1965 as part of regional infrastructure developments aimed at improving water resource management in Gunma Prefecture.

The dam represents Japanese engineering practices through its earth-fill construction method, which demonstrates the integration of infrastructure within the natural environment.

Visitors can access the dam site using local transportation routes, with designated observation points providing views of the structure and surrounding water reservoir.

The dam's core consists of carefully compacted soil materials that create an impermeable barrier, preventing water from seeping through the structure's body.

Location: Tomioka

Inception: 1965

Height: 31.9 m

Length: 250.6 m

GPS coordinates: 36.22556,138.87750

Latest update: March 7, 2025 23:05