Nanase Dam

Nanase Dam is an embankment dam on the Oita River in eastern Kyushu that rises approximately 85.5 meters above the riverbed. The structure controls water flow and storage for the surrounding region.

The dam was completed in 1978 as a major step forward in water management infrastructure for Oita. It has regulated water supplies in the region ever since.

The dam site incorporates elements of Japanese engineering principles, reflecting the national approach to water resource management and infrastructure development.

The dam is accessible via marked parking areas and viewing points that offer clear sightlines of the structure. Visiting during daytime hours provides the best visibility for photography and observation.

The structure features specialized systems designed to manage the intense rainfall that Japan experiences seasonally in this part of Kyushu. These mechanisms allow the dam to handle extreme water volumes effectively.

Location: Oita Prefecture

Inception: 1978

Height: 85.5 m

GPS coordinates: 33.79056,131.60778

Latest update: December 11, 2025 11:09