A small wooden office that kept watch over the water

The Shimonoseki City Waterworks Bureau Utsui Reservoir Office is a single-storey timber office built in 1906 in Utsuikami, Shimonoseki City, Yamaguchi Prefecture, and was registered as a Registered Tangible Cultural Property on January 16, 1998. It stands just south of Utsui No. 1 Reservoir, across the road from the water.

According to the Agency for Cultural Affairs, the Shimonoseki City Waterworks Bureau Utsui Reservoir Office is a timber building with a tiled roof and a footprint of 35 square metres, a very small office by any standard. The city describes it as having watched over Shimonoseki's water supply ever since the waterworks opened in 1906.

Why it was registered

The office was registered under the criterion of contributing to the historic landscape of the country. The Agency's note points out that, though plain and almost without ornament, it carries Western-style touches throughout, and that it shows what the early waterworks looked like on the ground.

Structures that hold water, such as intake towers and filter beds, tend to survive because they are hard to replace. The buildings where staff worked are usually the first to be rebuilt. That an original management building survives at the Utsui source is what the Utsui Reservoir Office adds to the nine registered structures.

What to look for

Three details repay attention at the Utsui Reservoir Office. The walls are finished in Shitami-itabari, overlapping horizontal boards. The windows are tall and narrow, quite unlike the wide openings of a traditional Japanese building. And the small canopy over the entrance has a curved edge.

None of this is elaborate. What it shows is a tiled timber hut given a few of the Western manners of Meiji-era public buildings, as if the new technology of piped water deserved a slightly more formal face.

Visiting the office

There is no public access to the interior of the Shimonoseki City Waterworks Bureau Utsui Reservoir Office. The city's advance-application tours cover the Waterworks Archive Room and the Takao plant, so here you see the building from outside.

Because the office stands across the road south of No. 1 Reservoir, the road gives a good view of the curved canopy and the window pattern. The site is part of a working water supply: stay outside the grounds and take photographs from public places.

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Q&A

QCan you go inside the Shimonoseki City Waterworks Bureau Utsui Reservoir Office?
ANo public access to the interior is offered. The building is seen from the road. The Waterworks Archive Room and the Takao plant can be visited by advance application.
QWhen was the Utsui Reservoir Office built?
AIt was built in 1906, when Shimonoseki's waterworks first opened.
QWhat kind of building is the Utsui Reservoir Office?
AA single-storey timber office with a tiled roof and a footprint of 35 square metres. Horizontal weatherboarding, tall windows and a curved entrance canopy give it a Western flavour.
QWhere is the Utsui Reservoir Office?
AIn Utsuikami, Shimonoseki, just south of Utsui No. 1 Reservoir on the other side of the road.
QWhy was the Utsui Reservoir Office registered as a cultural property?
AIt was registered in 1998 under the historic-landscape criterion, as a building that shows the character of the early waterworks.

Basic Information

NameShimonoseki City Waterworks Bureau Utsui Reservoir Office
Location356-9 Saruyama, Utsuikami, Shimonoseki City, Yamaguchi Prefecture
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered January 16, 1998
Quantity1 building
DimensionsTimber, single storey, tiled roof; building area 35 m²
OwnerShimonoseki City
Public AccessExterior only (interior closed)

References

Agency for Cultural Affairs Database: Utsui Reservoir Office
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00000481
Cultural Heritage Online: Utsui Reservoir Office (Japanese)
https://online.bunka.go.jp/heritages/detail/137751
Shimonoseki City: Registered Tangible Cultural Properties of the Waterworks (Japanese)
https://www.city.shimonoseki.lg.jp/site/water/5626.html

Last verified: 2026.09.27