A Cut-Stone Tunnel through Uomizaki
The Kangyodo Tunnel (観魚洞隧道) is a stone road tunnel of 1910 in Atami, Atami City, Shizuoka Prefecture, and was registered as a Registered Tangible Cultural Property (structure) on February 14, 2002 (Agency for Cultural Affairs).
The Agency records a stone tunnel 113 metres long and 4.1 metres wide; registration number 22-0078.
A Cut-Stone Tunnel through the Headland
The Kangyodo Tunnel lies on the old main road between Atami and Ito, running through the Uomizaki headland above Sagami Bay (Agency for Cultural Affairs). Its lining is entirely of cut stone with a rock-faced finish, and its mouths are horseshoe-shaped.
The portals at both ends have coping stones, string courses and pilasters, with a name tablet on brackets (Agency for Cultural Affairs). Shizuoka Prefecture lists it as a tunnel of 1910 on the old Route 135.
Why It Was Registered
The Agency notes how well it sits in the steep cliffs of the coast and registered it for its contribution to the historic landscape.
What to Look For
Look for the rock-faced stone lining and the portals with their bracketed name tablets (Agency for Cultural Affairs).
Visiting
It is owned by Atami City (Agency for Cultural Affairs). No official information on access or visits was found.
Q&A
- When was it built?
- In 1910 (Agency for Cultural Affairs).
- How big is it?
- 113 metres long and 4.1 metres wide.
- Where does it run?
- Through the Uomizaki headland on the old Atami-Ito road.
- What are the portals like?
- Coping, string courses, pilasters and a bracketed name tablet.
- When was the Kangyodo Tunnel registered?
- On February 14, 2002 (Agency for Cultural Affairs).
Basic Information
| Name | Kangyodo Tunnel (観魚洞隧道) |
|---|---|
| Location | Atami, Atami City, Shizuoka Prefecture |
| Designation | Registered Tangible Cultural Property (Structure) |
| Year Designated | Registered 2002/02/14 (Heisei 14) |
| Quantity | 1 structure |
| Dimensions | Stone, 113 m long, 4.1 m wide |
| Owner | Atami City |
| Public Access | No official information on access |
References
- Kangyodo Tunnel (Database of National Cultural Properties, Agency for Cultural Affairs)
- https://kunishitei.bunka.go.jp/heritage/detail/101/00002626
- Remarkable industrial heritage of Shizuoka (Shizuoka Prefecture, Japanese)
- https://www.pref.shizuoka.jp/machizukuri/doboclub/1052977/1003473/1028847.html
Last verified: 2026.10.21