
Guide
Yamba Dam Conduit Gate Room Tour
6 min readEvent Overview
The Yamba Dam Conduit Gate Room Tour offers a rare opportunity to step inside the dam's internal structure. This program allows you to observe the 'Conduit Gate Room'—an area strictly off-limits to the general public. It is a highly exclusive experience for those interested in large-scale engineering. As a special bonus, participants will receive an exclusive, limited-edition Dam Card available only through this tour.
Highlights & Experience
The main attraction is gaining access to the Conduit Gate Room, essentially the heart of the dam. Walking through the dam's internal structure and standing amidst the massive machinery provides a powerful sense of the scale and engineering prowess required to build such a structure. It is an unparalleled educational experience for anyone fascinated by civil engineering. To top it off, the limited-edition Dam Card makes for a perfect souvenir for collectors.
Schedule
The tour will be held on the following two days:
September 20 (Sun) and September 21 (Mon/Holiday), 2026.
[Departure Times]
Departures are scheduled at the following intervals each day:
- 10:00 / 10:30 / 11:00 / 11:30 / 12:00
- 13:00 / 13:30 / 14:30 / 14:40
[Route]
Above the dam structure → Conduit Gate Room (Inside the dam) → Below the dam structure → End of tour
Venue & Access
Meeting and registration take place at the 'Naruhodo! Yanba Museum (Yamba Dam Management Office)'.
| Item | Details |
|---|---|
| Venue Name | Naruhodo! Yanba Museum |
| Address | 1121-31 Kawaharata, Naganohara, Agatsuma District, Gunma |
Participation Tips
No advanced reservation is required, but participants are admitted on a first-come, first-served basis. Since capacity is limited, we recommend arriving early.
- *Age Requirement**: Open to students in 5th grade (elementary school) and older.
- *Identification**: Please bring a valid photo ID, as it must be presented at the time of registration.
- *Cancellations**: Tours may be canceled without notice in the event of heavy rain or flooding.
Clothing & Etiquette
- *Clothing**: Because the tour involves climbing steep stairs, we strongly recommend wearing comfortable clothing and sturdy walking shoes.
- *Alcohol**: Participation while under the influence of alcohol is strictly prohibited.
- *Payment**: Please pay the participation fee in cash on the day of the event.
- *Reservations**: No pre-booking is necessary; entry is granted on a first-come, first-served basis.