Where Toyohashi's Water Began
On the east bank of the Toyokawa River, north of central Toyohashi, stands the building where the city's modern water supply started its journey. This is the old pump room of the Gejō intake station, completed in 1929 (Shōwa 4). Water drawn from the river was lifted and sent on from here toward the Kotakano purification plant, so the structure stood at the very head of the system.
It sits near the center of the intake grounds, with its front entrance turned to the south. The building is reinforced concrete, a single story above one basement level, covering about 137 square meters. The roof is gabled along an east-west ridge, and a flat-roofed entrance porch projects from the south face. When it opened it was known as the pumping station, the first machine room in a brand-new municipal waterworks.
A Romanesque Touch on the River
Of the five registered Toyohashi waterworks structures, this is the most openly architectural. Tall, narrow windows topped with semicircular arches march along the walls, giving the front a rhythm that recalls Romanesque building. The exterior is finished to resemble stone, and the window surrounds and eaves are edged with tile for a clean, refined line. Local descriptions also note a relief of a face on the front wall, an unexpected ornamental flourish for a riverside pump house.
The municipal waterworks were planned under Nishiōeda Satoru, an engineer who had worked on Tokyo's water system, and full service across the city began after the opening ceremony of March 1930. In an unusual arrangement, the source, intake, treatment, and distribution sites were all built outside the Toyohashi city limits of the time, in neighboring villages that were later absorbed into the city.
Three Lives of One Building
The pump room served its original purpose until 1976 (Shōwa 51). After that it was used as an electrical room, and from 1996 it became a storehouse for records. The building changed roles more than once, yet it was never demolished, which is part of why its 1929 character survives so well.
It was registered as a Tangible Cultural Property on 2 November 2018, the first listed among the five Toyohashi waterworks structures, recognized for its place in the historic landscape of the country. The intake station remains operational, so the building is not casually open to visitors, but its arched windows and stone-like walls make it the architectural high point of the group.
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Q&A
- What role did this building play?
- It housed the pumps at the Gejō intake station, where water drawn from the Toyokawa River was lifted and sent toward the Kotakano purification plant. It stood at the head of Toyohashi's first municipal water system.
- What is distinctive about its design?
- Rows of tall windows capped with semicircular arches give it a Romanesque feel. The walls are finished to look like stone, and tile edging frames the windows and eaves.
- Is there really a face carved on the wall?
- Local accounts describe a relief of a face mounted on the front wall. The detail comes from secondary sources rather than the official registration record, so it is best taken as a reported feature.
- How was the building used over time?
- It worked as a pump room until 1976, then served as an electrical room, and from 1996 as a storehouse for records. It kept changing function while remaining standing.
- Can it be visited?
- The Gejō intake is an active facility, so the building is not generally open to the public. For information on access, contact the Toyohashi City Waterworks and Sewerage Bureau.
Basic Information
| Name | Gejō Intake Station Old Pump Room, Toyohashi Municipal Waterworks (Gejō Shusuijō Kyū Pompushitsu) |
|---|---|
| Location | 60 Sannoshita, Gejō-nishimachi, Toyohashi, Aichi |
| Designation | Registered Tangible Cultural Property (building) |
| Registered | 2 November 2018 (registration no. 23-0525) |
| Built | 1929 (Shōwa 4); renovated 1976 (Shōwa 51) |
| Count and structure | 1 building; reinforced concrete, single story over one basement, floor area 137 sq m |
| Owner | Toyohashi City Waterworks and Sewerage Bureau |
| Access | Active intake facility; not generally open to the public |
References
- Agency for Cultural Affairs, National Cultural Properties Database: Gejō Old Pump Room
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00012554
- Toyohashi City Waterworks and Sewerage Bureau: History of the Water Supply
- https://www.city.toyohashi.lg.jp/3984.htm
- Toyohashi City Waterworks and Sewerage Bureau: Water Facilities
- https://www.city.toyohashi.lg.jp/3925.htm
Last verified: 2026.06.25