御坂サイフォン橋

The Misaka Siphon Bridge extends 752 meters across the Shishin River, featuring both stone and concrete arch structures standing parallel to each other.

Engineer E. H. Thorne designed this water transportation bridge in 1887, and construction finished in 1891 using advanced civil engineering techniques of the period.

The Japan Society of Civil Engineers designated the Misaka Siphon Bridge as a Civil Engineering Heritage Site in 2005, recognizing its technical achievements.

The bridge system transports water from an elevation of 134.1 meters at the upstream intake to 131.2 meters on the opposite bank, crossing a valley at 77.7 meters.

The structure functions through gravity, pulling water down and up through the bridge using siphon principles to maintain continuous flow across the valley.

Location: 志染町御坂

Inception: 1891

Length: 752 m

GPS coordinates: 34.79028,135.05581

Latest update: March 4, 2025 03:26