A Slender Stone Arch Bridge of 1927 in Innai

The Sunori Bridge (水雲橋) is a two-span stone arch bridge of 1927 in Innaimachi Haraguchi, Usa City, Oita Prefecture, and was registered as a Registered Tangible Cultural Property (structure) on November 20, 2001 (Agency for Cultural Affairs).

The Agency records a two-span stone arch bridge 40 metres long and 3.6 metres wide; registration number 44-0075.

A Stone Bridge 17 Metres above the River

The Sunori Bridge is a two-span stone arch bridge over a river in Innai (Agency for Cultural Affairs). Its voussoirs, forming an arch ring 40 centimetres thick, are laid in segmental arches that reach a span of 17 metres with a rise of 5.5 metres.

The flat, narrow structure, slender for its length, sits lightly 17 metres above the water and has given the gorge a new scenic value (Agency for Cultural Affairs).

Why It Was Registered

The Agency notes this stone arch bridge for the new scenic value it gave the gorge, and registered it for its contribution to the historic landscape.

What to Look For

Look for the flat segmental arches set 17 metres above the river (Agency for Cultural Affairs).

Visiting

It is owned by Usa City (Agency for Cultural Affairs). No official information on visiting was found.

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Q&A

QWhen was it built?
AIn 1927 (Agency for Cultural Affairs).
QHow is the name read?
ASunori-bashi.
QHow large is it?
A40 metres long and 3.6 metres wide, with two arches of 17-metre span.
QHow high is it?
AIt stands 17 metres above the river.
QWhen was the Sunori Bridge registered?
AOn November 20, 2001 (Agency for Cultural Affairs).

Basic Information

NameSunori Bridge (水雲橋)
LocationInnaimachi Haraguchi, Usa City, Oita Prefecture
DesignationRegistered Tangible Cultural Property (Structure)
Year DesignatedRegistered 2001/11/20 (Heisei 13)
Quantity1 building
DimensionsStone, two-span arch, 40 m long, 3.6 m wide
OwnerUsa City
Public AccessNo official visiting information

References

Sunori Bridge (Database of National Cultural Properties, Agency for Cultural Affairs)
https://kunishitei.bunka.go.jp/heritage/detail/101/00002573

Last verified: 2026.10.20