Mikobata Cast Iron Bridge, Cast iron arch bridge in Asago, Japan.
The Mikobata Cast Iron Bridge is a single-arch bridge made entirely of cast iron, located in Asago, Hyogo Prefecture, Japan. The structure is compact, with visible joints, bolted connections, and a narrow deck that sits low over a small stream.
The bridge was built in 1885 to serve the Ikuno silver mine, one of the most productive mines in Japan at the time. The cast iron parts were imported, then assembled on site by Japanese workers during a period of rapid adoption of Western industrial methods.
The bridge sits along what was once called the Ore Road, a route that connected mining sites across the hills of Hyogo Prefecture. Walkers on this route today can still follow parts of the original path between former industrial sites.
The bridge is in a rural area and is best reached on foot from the nearby Ikuno mining heritage sites, which are signed. Sturdy shoes are a good idea since the paths around the site can be uneven.
Despite being built for heavy industrial use, the bridge is surprisingly small in scale and looks almost delicate up close. It is one of the very few fully intact cast iron bridges of its kind remaining in Asia.
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