Osamu Kosuge Semba Ruins
“Wave of Modernization”
(click to enlarge image)

Attractions and Features

The oldest Western-style slip dog that Japan was laid down in the Edo period in the Kosuge district in the southern part of Nagasaki city. This is Kosuge ship repairing dock heritage site.It was registered as World Heritage Site in 2015.A detailed background explanation is transferred to the Nagasaki city’s HP.

Because the ship that put the ship on the rail installed to fry stringing by the power of the boiler type steam engine (ship rack, not extant) looked like Soroban, it is known by the name of “Sorbandok”.
For the purpose of repairing foreign ships, Kosuge repair dock planned with the Satsuma feudal clan and ordered a set of salvage equipment from Scotland and completed it in 1869.
This dock, acquired by the Meiji government the following year, was managed by the Nagasaki Steel Works, and is now owned by Mitsubishi Heavy Industry from 1887.In that sense, Kosuge repair dock is the birthplace of Japan modern shipyard.

In addition, the spinnshed is the oldest and most authentic brick building in existence Japan.
It is currently designated as a National Historic site.

Nagasaki City Official Tourism site!Kosuge Osamu Senba Ruins

The point of interest is that the machine equipment (made in United Kingdom steam engine) in the early Meiji period is kept at this time.

Osamu Kosuge Semba Ruins
“In(dustrial re)volute”
Osamu Kosuge Semba Ruins
Steam engine made in UK
Osamu Kosuge Semba Ruins
“Be in the green”
Osamu Kosuge Semba Ruins
Japan Oldest Brick structure

It is also famous as a hidden cherry blossom spot.The view from the road is good, and you can see the world heritage where the cherry snowstorm dances in early April.

Kosuge Osamu Senba No Sakura
“Sakura Stream”

Traffic access

Both tram and JR are out of range.


The city centre of Nagasaki is accessible by taxi.It takes about 10 minutes from Glover Garden.


Take the route bus (Nagasaki Bus) to the Nokomasaki area via Tomachi and get off at the “Kosuge Town” bus stop.It is right in front of the bus stop. 


There is no parking lot on the official WEBSITE, and they are calling for access by public transportation.If there is only a few, there is a parking space and it seems to put a car.

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