Okususobana Gorge
Okususobana Dam offers a scenic escape in Nagano, known for its beautiful autumn foliage and dam card collection opportunities.

Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Spectacular autumn foliage
Okususobana Gorge
Best Time
Spectacular autumn foliage

Highlights
Must-see attractions
Okususobana Dam offers a scenic escape in Nagano, known for its beautiful autumn foliage and dam card collection opportunities.
"The drive to Okususobana Dam is spectacular, especially in autumn, and dam card collectors will find it a worthwhile destination."

🚗 Check Road Status
Forest road closures are common. Verify reopening dates, especially for fall visits . 🚗
🍁 Chase Autumn Colors
The drive to the dam is breathtaking during autumn foliage season. Plan accordingly! :maple_leaf:

Quick Facts
Hours
Rating
3.9 · 100 reviews
Highlights
Discover the most iconic attractions and experiences

Okususobana Dam
Susobana River, Nagano
A gravity concrete dam offering scenic views, especially during autumn foliage. A must-see for dam enthusiasts!

Beech and Skunk Cabbage Line
Road leading to Okususobana Dam
A pleasant drive through fresh greenery, transforming into a spectacular autumn spectacle.
Dam Card Collection
Susohana Dam Management Office
A popular spot for dam enthusiasts to collect unique dam cards, often distributed by helpful staff.
Plans like a pro.
Thinks like you
Planning Your Visit
Dam Road Closures & Reopening
Best Time for Autumn Foliage
Best Times
Insider Tips
from TikTok, Instagram & Reddit
🚗 Check Road Status
Forest road closures are common. Verify reopening dates, especially for fall visits. 🚗
🍁 Chase Autumn Colors
The drive to the dam is breathtaking during autumn foliage season. Plan accordingly! :maple_leaf:
💧 Dam Card Hunt
Dam cards are available at the management office. Arrive early for the best chance! 🎟️
🤢 Avoid Car Sickness
The drive involves many narrow roads. Be prepared if you're prone to car sickness. :facewiththermometer:
Tips
from all over the internet
🚗 Check Road Status
Forest road closures are common. Verify reopening dates, especially for fall visits. 🚗
🍁 Chase Autumn Colors
The drive to the dam is breathtaking during autumn foliage season. Plan accordingly! :maple_leaf:
💧 Dam Card Hunt
Dam cards are available at the management office. Arrive early for the best chance! 🎟️
🤢 Avoid Car Sickness
The drive involves many narrow roads. Be prepared if you're prone to car sickness. :facewiththermometer:
What Travellers Say
Reviews Summary
Okususobana Dam is a rewarding destination for dam enthusiasts and nature lovers, particularly during the autumn foliage season. Visitors appreciate the scenic drive and the opportunity to collect dam cards. However, potential road closures and narrow access roads require careful planning.
"Saturday, early August 2025.
The weather looks good today, so I'm going on a dam-hopping tour in the Nagano area.
Unfortunately, the forest road was closed, so I couldn't get to the dam and couldn't get a dam card.
According to the website, the dam is scheduled to be restored on Wednesday, October 1st of this year (although it may be earlier or later).
I'd like to return during the autumn foliage season when the dams are restored."
かわさきおじさん
"Dam Tour: Nagano-Okususobana Dam. (202405E)
Gravity type concrete dam, height 59 meters, crest length 170 meters. A multipurpose dam built on the Susobana River in the Shinano River system for flood control, water supply, and power generation. The ``beech and skunk cabbage line'' leading up to the dam is a pleasant road with fresh greenery. Don't overlook the entrance to the administration building. If you cross the bridge ahead, you can see a wide view of the bridge and dam. It is an observation area with restrooms. It will be even more spectacular during the autumn leaves season.
Dam card: Currently being distributed at the Susohana Dam Management Office (Second Management Division)."
TTT III
"The road was closed just past Tsuchikura Monjudo. Let's wait for it to reopen in the fall of 2025."
オビワン
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Access to Okususobana Dam is primarily by car via a forest road. Be aware that this road can be closed, especially outside of peak seasons. It's recommended to check the official website for current road conditions and reopening dates, often scheduled for fall. The drive itself is noted for its scenic beauty, particularly the 'beech and skunk cabbage line'.
No, the forest road leading to the dam is subject to closures. Visitors should confirm the road's status before their trip, as it may be closed for maintenance or seasonal reasons. Fall reopening is a common target.
Public transportation options directly to Okususobana Dam are limited. Driving is the most practical way to access the site. If you are relying on public transport to reach the Nagano area, consider local taxi services or car rentals from nearby cities like Matsumoto.
This refers to the scenic route leading up to Okususobana Dam, characterized by lush beech trees and skunk cabbage plants. It's particularly beautiful in spring with fresh greenery and in autumn with vibrant foliage.
Yes, the route involves many narrow roads, which can be challenging for some drivers and may cause car sickness for passengers. Drive cautiously and be prepared for winding paths.
🎫 🎫 Tickets & Entry
There is typically no admission fee to visit Okususobana Dam itself. However, access to the dam might be restricted if the access road is closed. The main draw for many visitors is collecting the dam card.
Dam cards are usually distributed at the Susohana Dam Management Office (Second Management Division). It's advisable to visit during their operating hours and inquire about availability, as they are popular among enthusiasts.
Specific operating hours for the Susohana Dam Management Office should be confirmed directly, as they can vary. It's best to check their official website or contact them in advance, especially if you are traveling a long distance to collect a dam card.
The observation area near the dam, which offers views of the bridge and dam, is generally free to access. This area typically includes restrooms and provides a good vantage point for photos.
Visiting during the dam's operational period and during the office's working hours is essential. Many visitors report receiving cards from staff upon arrival, suggesting a smooth process when the dam and office are accessible.
🎫 🏞️ Onsite Experience
Visitors can admire the gravity concrete dam, enjoy the scenic drive along the 'beech and skunk cabbage line,' and take in views from the observation area. It's a popular spot for dam enthusiasts and nature lovers.
Yes, Okususobana Dam offers excellent photographic opportunities, especially during the autumn foliage season when the surrounding landscape is vibrant. The dam itself and the views from the observation area are picturesque.
Restrooms are available at the observation area near the dam, providing convenience for visitors. This is a useful amenity for those spending time exploring the site.
The area is known for its natural beauty, with the 'beech and skunk cabbage line' offering a pleasant experience through fresh greenery in spring and colorful foliage in autumn. It's a great spot for nature appreciation.
While not explicitly mentioned as a picnic spot, the observation area with restrooms could be a suitable place for a short break. Enjoying the scenery is a primary activity here.
🎫 🍁 Nature & Scenery
The scenery around Okususobana Dam is highly recommended during the autumn foliage season, typically from October to November, when the 'beech and skunk cabbage line' becomes exceptionally beautiful. Spring also offers fresh greenery.
While the main attraction is the dam and the drive, walking along the branching forest road, even when closed to traffic, can offer a more immersive nature experience. Specific marked hiking trails are not detailed in the provided information.
The 'beech and skunk cabbage line' highlights the presence of beech trees. These contribute significantly to the vibrant autumn colors that draw visitors to the area.
While not explicitly stated, mountainous and forested areas in Nagano prefecture can be home to various wildlife. Visitors should exercise caution and be aware of their surroundings.
In spring, the area is characterized by fresh greenery along the 'beech and skunk cabbage line.' Autumn brings a spectacular display of colorful foliage, making it the most visually striking season.








Social
from TikTok, Instagram & Reddit