It was originally built by monks from the nearby Kofuku-ji Temple.
During the 1957 flood, the bridge was relocated specifically to protect it from further destruction while simultaneously preventing future blockage of the river channel.
The structure is composed of local volcanic stone, primarily tuff and andesite.
It is one of several 'Meganebashi' bridges in Japan, but stands out as the earliest one to receive formal national cultural protection.
The bridge's restoration involved numbering each stone during disassembly to ensure accurate reconstruction at the new site.
The Megane Bridge of Isahaya is a double-arched stone bridge originally constructed in 1839 over the Hommyo River. Following a devastating flood in 1957, the bridge was dismantled and relocated to its current position within Isahaya Park to serve as a preserved historical monument. It is the first stone bridge in Japan to be designated as a National Important Cultural Property. The bridge features a length of approximately 49 meters and a width of 5.5 meters, showcasing traditional stone masonry techniques. The twin arches create circular reflections in the water below, which inspired its name, 'Spectacles Bridge.'
From the park's lower riverbank path looking upward to frame both arches and their reflection in the water.
Walk across the bridge to examine the detailed stone masonry and the joinery of the arch keystones.
Explore the surrounding Isahaya Park, which features seasonal blooms and walking paths connected to the bridge site.
Visit during the early morning to capture clear reflections in the water basin before the wind picks up.
Do not attempt to climb or stand on the outer ledges of the stone arches.