Guide
Tokuyama Dam is one of Japan's most significant dams, located in Ibi Town, Ibi District, Gifu Prefecture. Its most striking feature is its immense water storage capacity. With a total capacity of approximately 660 million cubic meters, it holds about twice the volume of Lake Hamana in Shizuoka Prefecture. The dam's crest length is 427 meters, a structure so long it exceeds the length of 16 Shinkansen 'Nozomi' train cars. This massive engineering feat plays a vital role in protecting the Ibi River water resources and managing regional flood control and water usage.
Constructed to control the flow of the Ibi River (one of the Kiso Three Rivers) for disaster prevention and water resource security, Tokuyama Dam is a masterpiece of modern Japanese civil engineering. Beyond being a mere infrastructure facility, it serves as a crucial hub for regional safety. Managed by the Water Resources Agency, the dam has long supported the local community through flood control and the supply of water for agriculture and industry, forming a cultural foundation for the region's way of life.
The most impressive sight is the view from the dam crest, where you can truly feel the massive scale of the structure. The contrast between the vast expanse of the water surface and the towering wall of the dam is breathtaking. Visitors can also learn about the mechanics of the dam at the 'Tokuyama Dam Museum,' which offers excellent educational content for children. When water is discharged, the sheer power of the flowing water provides a spectacular display of natural energy. You can also collect a 'Dam Card' as a souvenir to commemorate your visit.
The landscape surrounding the dam changes beautifully with the seasons. The vastness of the water surface is particularly striking during seasons when water levels are high. The dam management office is generally open during daytime hours (9:00 AM – 5:00 PM). For the best experience, we recommend visiting during daylight hours to fully enjoy the scenery. Since the water levels and discharge status vary depending on weather and season, it is a good idea to check the latest information before your visit.
Visitors can gain a visual understanding of advanced civil engineering around the dam. The museum provides exhibits on the dam's role and structure, offering a chance to learn about the relationship between water and nature. Collecting Dam Cards is a popular activity for enthusiasts. The surrounding area also features campsites and roadside stations, making it an excellent destination for a scenic drive or a relaxing break.
There are several spots nearby to enjoy nature. You can enjoy camping at 'Fujihashi Camping Base' or experience the beautiful starry skies at the 'Hoshifuru Sato Small Auto Campground.' The roadside station 'Hoshino Sato Fujihasi' offers local specialties and rest areas. Furthermore, the area provides easy access to other Gifu attractions, such as the historic streets of Magome-juku or the scenic sky walkways.
As the dam is located in a natural environment, comfortable walking shoes and clothing are recommended. It is wise to bring rain gear or extra layers to prepare for sudden weather changes. Please ensure you visit during the management office's operating hours. For the most up-to-date information regarding water discharge or dam status, we recommend checking the official website.