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Museums #16 in Tokorozawa, Saitama

Sewerage Museum

4.3 · 485 reviews
Clinical, educational, and unconventional.
Sewerage Museum, ふれあい下水道館 1 Chome-25-31 Josuihoncho, Kodaira, Tokyo 187-0022, Japan
Interesting facts
1

The museum allows visitors to experience an actual, active sewer pipe 25 meters underground.

2

The facility was established to raise awareness about the importance of the sewage system in maintaining public health.

3

The entrance area features historical displays showing how sewage management transitioned from open gutters to enclosed pipes.

4

It is a popular destination for school field trips and urban engineering enthusiasts.

5

The building's design includes an observation deck that overlooks the underground infrastructure.

6

Visitors can view a variety of sewer-related equipment and tools used by city maintenance crews.

Overview

The Kodaira Fureai Sewerage Museum is the world’s only museum that allows visitors to descend into a fully functional, active sewer pipe. Located in Kodaira, Tokyo, the facility provides an educational deep-dive into the history and mechanics of the city's water infrastructure. Visitors can walk through a reinforced observation tunnel where they can smell, hear, and observe real sewage flowing through the system. The museum displays provide detailed insights into the Japanese sanitation system, including the evolution of manhole covers and wastewater treatment processes. It serves as a rare technical facility that highlights the hidden engineering essential for urban hygiene.

Photo spot

The descent tunnel entrance offers the most unique perspective of the facility's engineering.

Insider tips

Bring a handkerchief or face mask if you are sensitive to strong odors, as the active sewer pipe can have a significant smell.

Check the official website before visiting to ensure the observation pipe is not closed for maintenance or cleaning.

Wear comfortable walking shoes as there is a long spiral staircase used to descend to the pipe level.

What to avoid

Assuming it is a typical tourist attraction; it is a highly specialized, niche engineering museum.

Good to know

Closed on Mondays and during year-end holidays.

Etiquette

Maintain a quiet demeanor as it is an educational facility; follow all safety instructions when entering the underground portion.

Plan your visit
Typical visit
1 hour
Best time to visit
Weekday mornings, as the museum is quiet and allows for a more focused experience of the exhibits.
Address
Sewerage Museum, ふれあい下水道館 1 Chome-25-31 Josuihoncho, Kodaira, Tokyo 187-0022, Japan
35.720, 139.465
Get directions
Details
Key exhibitsActive 25-meter-deep sewer pipe access, historical manhole collection, and water treatment schematics.

Frequently asked

Plan for about 1 hour to see the highlights.

The best time to visit is Weekday mornings, as the museum is quiet and allows for a more focused experience of the exhibits..

The descent tunnel entrance offers the most unique perspective of the facility's engineering.

Close by you'll find Kodaira City Central Park, Edo-Tokyo Open Air Architectural Museum, Kubohigashi Park.