Komaki Dam

Komaki Dam is a gravity dam that rises 79.2 meters above the Shō River, equipped with 17 tainter gates for water control and Francis-type turbines for power generation. The structure manages water flow throughout the year while serving multiple purposes for the surrounding communities.

The dam was completed in 1930 after five years of construction, making it the largest arch-gravity dam in East Asia at that time. Its completion represented a major achievement in water management and industrial development for the nation.

The dam shaped the region's development and remains central to how locals use the river and surrounding landscape. People gather along the waterways to experience the seasonal changes and the natural beauty that the reservoir creates.

The site is accessible on foot from nearby bus stops, and visitors can walk around the structure to view it from different angles. Wear comfortable shoes and be prepared for changing weather conditions, especially if you plan to explore the surrounding areas and viewpoints.

Boat routes pass through the gorge and connect to remote destinations, offering travelers a different way to experience the structure and surrounding landscape. Few visitors realize that water transport has been a traditional way to reach certain areas since the dam's creation.

Location: Tonami

Inception: 1925

Height: 79.2 m

GPS coordinates: 36.55667,137.00806

Latest update: December 8, 2025 19:47