What Is the Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance?

The Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance (別府市朝見浄水場配水池南出入口, Haisuichi Minami Deiriguchi) is a reinforced concrete maintenance hut of 1926 at the Asami plant in Asami 2-chome, Beppu City, Oita Prefecture, registered as a Registered Tangible Cultural Property on September 3, 1997. It stands against the south side of the distribution reservoir at the western edge of the plant, covers 13 square meters and carries registration number 44-0015.

It is rectangular in plan, the southern one of the reservoir's two entrance huts.

Why It Was Registered

The Agency for Cultural Affairs notes that, small as it is, the South Entrance was treated as a piece of architecture, and ranks it with the reservoir as a commemorative structure. A concrete box with a door would have served for maintenance access. The finish on the walls and the shape of the windows are what lift this one above a shed. It was registered as a Registered Tangible Cultural Property for contributing to the historic landscape of the country.

The Agency dates it to 1926, and Beppu's centennial waterworks history lists both reservoir entrances among the works of the First Expansion Project, begun in 1926 and completed in 1927, so the sources are in step.

What to Look For: Exposed-Aggregate Walls and Arched Windows

The walls of the Asami South Entrance are finished in Araidashi, an exposed-aggregate plaster. Mortar mixed with small pebbles is troweled on, and before it fully sets the surface is washed with water so that the stones stand proud. Up close the wall has a fine, gritty texture that changes with the light, quite unlike flat render.

On the side walls are arched window frames. A plain rectangular box gains a second show face from these round-headed openings.

The North Entrance makes its case with pilasters and capitals. The South Entrance relies instead on surface texture and the outline of its windows: two huts of the same year and the same size, finished by quite different means.

How to Visit

The Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance lies inside a working plant with no regular visiting hours. If an open day brings you close, walk round to the side to see the arched frames, and look closely at the wall to catch the pebbles in the finish. Check with staff about entering the interior and taking photographs.

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Q&A

QWhere is the Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance?
AInside the Asami plant in Asami 2-chome, Beppu, on the south side of the distribution reservoir at the western edge of the site.
QWhen was the Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance built?
AThe Agency for Cultural Affairs dates it to 1926. Beppu City's records place it in the First Expansion Project of 1926 to 1927.
QWhat does the Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance look like?
AIt is a rectangular reinforced concrete hut of 13 square meters, with walls finished in exposed-aggregate araidashi plaster and arched window frames on its sides.
QWhy is the Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance a Registered Tangible Cultural Property?
AAlthough it is only a maintenance entrance, it was designed with real architectural care and is regarded, with the reservoir, as a commemorative structure. It was registered on September 3, 1997.
QCan I visit the Beppu City Asami Water Purification Plant Distribution Reservoir South Entrance?
AIt is inside a working water plant, and the city lists no regular visiting hours. The grounds open for events such as the Water and Sewerage Bureau's open days. Enquiries go to the Asami plant (tel. 0977-22-0527).

Basic Information

NameBeppu City Asami Water Purification Plant Distribution Reservoir South Entrance (別府市朝見浄水場配水池南出入口)
Location2-4130-1 Asami, Beppu City, Oita Prefecture
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered on September 3, 1997
Quantity1 building
DimensionsReinforced concrete, building area 13 square meters
OwnerBeppu City
Public AccessNot open on a regular basis (inside a working water plant; viewable during events such as open days)

References

別府市朝見浄水場配水池南出入口 (Agency for Cultural Affairs, Database of National Cultural Properties)
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00000319
別府市朝見浄水場配水池南出入口 (Cultural Heritage Online)
https://online.bunka.go.jp/heritages/detail/191319
Beppu Waterworks Centennial History, 別府市水道100年誌 (Beppu Water and Sewerage Bureau, PDF, Japanese)
https://www.city.beppu.oita.jp/doc/seikatu/suido/s_jigyo/anniversary/kinensi.pdf

Last verified: 2026.09.29