What Is the Former Bungo-Mori Roundhouse? Essential Guide to Kusu Town's Railway Heritage
The Former Bungo-Mori Roundhouse (Kyū Bungo-Mori Kikanko) is a valuable piece of railway heritage in Kusu Town, Oita Prefecture.
Built in 1934 (Showa 9) to coincide with the full opening of the JR Kyudai Main Line, this fan-shaped roundhouse can now be visited along with its turntable inside Bungo-Mori Roundhouse Park.
One of its most distinctive features is that it is the only surviving fan-shaped roundhouse in Kyushu.
The Former Bungo-Mori Roundhouse and turntable were recognized as part of Japan's Heritage of Industrial Modernization by the Ministry of Economy, Trade and Industry in 2009, and registered as a National Tangible Cultural Property in 2012.
It's a worthwhile sightseeing spot not only for railway fans but also for anyone interested in modern architecture or local history.
Top Things to See at the Former Bungo-Mori Roundhouse: The Fan-Shaped Structure and Turntable
Take in the Sweeping Fan-Shaped Layout of the Roundhouse
Standing on site, you can clearly see how the roundhouse spreads out in a semicircle with a radius of about 47.84 meters.
Tracks fan out radially from the central turntable, creating a structure that could house 12 locomotives, with each track guiding a locomotive into its own bay.
At its peak, 25 steam locomotives were stationed here and more than 5,000 people used the depot daily, making it a major railway hub.
Seeing this fan-shaped roundhouse structure up close is the highlight of a visit.
The Turntable Brings Railway Mechanics to Life
A turntable is a rotating piece of equipment used to change the direction of a locomotive or transfer it to a different track.
The Bungo-Mori turntable is made of steel with a diameter of about 18.5 meters, and walking around while reading the information panels and observing the layout helps you appreciate how this site once supported rail transport on the Kyudai Main Line.
Sites where both a turntable and a fan-shaped roundhouse remain together are rare in Japan, making it a popular and highly photogenic spot.
History You Can Feel On Site: Wartime Scars and the Story of Preservation
During World War II, the Former Bungo-Mori Roundhouse served as a hub for military transport, and on August 4, 1945, three staff members were killed in a strafing attack by U.S. military aircraft.
Bullet marks from that attack are still visible on the exterior walls today, showing that this is not just a piece of retro railway architecture but also a place that conveys the wartime history experienced by the local community.
After the depot's role ended with the shift to diesel in 1970 (Showa 45), there were calls to demolish it, but local preservation efforts continued.
Through the activities of a preservation committee established in 2001 and a petition drive that gathered 22,437 signatures, Kusu Town acquired the site in 2005, leading to the form it takes today.
Walking around with the perspective of "a place that has been protected" rather than simply "surviving ruins" gives the site a different impression.
Round Out Your Visit at the Bungo-Mori Roundhouse Museum
Ideal for Visitors Who Want Historical Background
Inside Bungo-Mori Roundhouse Park is the Bungo-Mori Roundhouse Museum, which features exhibits on the history of the Former Bungo-Mori Roundhouse and Japanese railways.
Built around the concept of "playing, learning, and enjoying history," the museum is designed to fill in the background that's hard to grasp from outdoor sightseeing alone.
Locomotive parts, photographs, and operational records of the period are on display, offering clues to the atmosphere of the fan-shaped roundhouse during its active years.
Family-Friendly Exhibits for Visitors with Children
The museum has a railway-themed picture book corner and a wooden ball pool, plus craft activities such as origami and shrink-plastic crafts.
Adults can enjoy the historical materials and design while children have play areas to keep them entertained, making it an easy stop for trips with mixed-age travel companions.
The interior was designed by industrial designer Eiji Mitooka, known for JR Kyushu's luxury train "Seven Stars in Kyushu" and "Aso Boy!" express train, so the space itself is one of the highlights.
An Easy Walking Route Through Kusu Town for First-Time Visitors to Japan
It's about a 5-minute walk from JR Bungo-Mori Station.
From the station, head to Bungo-Mori Roundhouse Park and first take in the entire fan-shaped roundhouse from a distance to grasp its overall form, then move closer to the turntable to better understand the structural details.
After that, view the strafing scars on the exterior walls and the outdoor exhibits in the park, then finish at the Bungo-Mori Roundhouse Museum so the outdoor scenery and the indoor displays connect naturally.
Allow about 20 to 30 minutes for the outdoor sightseeing and around 30 minutes for the museum to keep the pace comfortable.
For photos, try walking to a position where you can see the building's full curve and another spot directly facing the turntable to enjoy the contrast in perspectives.
Best Time to Visit and Tips to Avoid Crowds
Since most of Bungo-Mori Roundhouse Park is outdoors, the most pleasant times to visit are spring (late March to May) and autumn (October to November).
Summer offers little shade, so a hat and water will help you walk comfortably.
For a quieter visit, weekday mornings or right after opening (around 10 a.m.) are best, helping you avoid the times when tour buses tend to stop by.
On event days, the park can become lively with markets like the "Kikanko Marche," so if you prefer a quiet visit, check the event schedule in advance.
Access, Admission Fee, and What to Check Before Visiting
The Bungo-Mori Roundhouse Museum is open 10:00 a.m. to 4:00 p.m., and is closed on Mondays (or the following day if Monday is a public holiday) and over the New Year period (December 29 to January 3).
Admission is 100 yen for junior high school students and older, and the outdoor Former Bungo-Mori Roundhouse, turntable, and Bungo-Mori Roundhouse Park can be visited for free.
For parking, you can use the municipal lot beside JR Bungo-Mori Station (free for 2 hours) or other nearby public parking lots.
The address is 36-15 Iwamuro, Kusu-machi, Kusu-gun, Oita, and when using a car navigation system, searching for "Bungo-Mori Roundhouse Park" or "JR Bungo-Mori Station" makes it easy to find.
Multilingual brochures for Bungo-Mori Roundhouse Park are also available.
For peace of mind, double-check opening days and visitor information before and during your trip.
Summary
The Former Bungo-Mori Roundhouse is one of Kusu Town's leading railway heritage sites, where you can not only enjoy the fascinating engineering of a fan-shaped roundhouse and turntable but also feel echoes of wartime memory and the local preservation efforts that saved it.
After exploring the outdoor remains, learning the background at the Bungo-Mori Roundhouse Museum makes it easier even for first-time visitors to appreciate the value of this place.
It's a calm, easy-to-visit sightseeing spot if you want to trace railway heritage in Kusu Town.
