Kanna Dam, Gravity dam in Ginoza, Japan
Kanna Dam is a concrete gravity structure spanning 185 meters across the river and rising 45 meters from its base. A smaller secondary dam sits to the northeast of the main structure to handle water flow.
Construction started in 1982 following research conducted from 1973 to 1978 and was completed in 1992. The project arose from the region's need for improved water management and flood control.
The structure takes its name from the river it crosses and shapes how water reaches communities downstream. Visitors can observe how engineering infrastructure blends into the local landscape and supports the rhythm of regional life.
Start your visit from the main public viewing area to see the entire structure clearly from different angles. Seasonal changes and water levels affect how the site looks, so conditions vary throughout the year.
The structure includes fish ladders that allow migrating species such as fish, shrimp, and crabs to move upstream and downstream along their traditional routes. Mangrove areas were also planted around the reservoir to create new resting places for waterfowl.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
