“A connecting thread” is what defines the 相生橋. Today we explore this vital link in Tokyo.
The 相生橋, or Aioi Bridge, gracefully spans the派川 (Hikawa) River. It joins the 中央区 (Chuo Ward) and 江東区 (Koto Ward). This bridge carries Tokyo Route 463.
The name 相生橋 translates to Aioi Bridge. It evokes a sense of connection. The name comes from the paired structure of the original bridges. Also it may be inspired by the “Aioi no Matsu” or twin pines.
The first 相生橋 consisted of two bridges. They were a longer and shorter span. These connected Tsukudajima and Eitaijima. These original bridges supported water pipes. They helped supply water to the developing factories on the 新佃島 (Shin-Tsukudajima) island.
Before the first 相生橋 opened, residents relied on ferries. The ferries linked Tsukishima and other areas. The 月島の渡し (Tsukishima Ferry) and 佃の渡し (Tsukuda Ferry) were vital. These crossings remained important even after the bridge’s construction.
In 1923 a devastating earthquake struck. The 相生橋 was destroyed in the ensuing fires.
The 相生橋 was rebuilt as part of the post-earthquake reconstruction. The authorities rebuilt many bridges in Tokyo at that time.
In 1980, the 中之島 (Nakanoshima) island became landlocked. This meant the shorter bridge was no longer needed.
The current 相生橋 dates to 1998. It replaced the aging structure. Today’s bridge is a three-span steel truss bridge. It stretches 149.1 meters with a width of 22 meters.
The 江東区立中の島公園 (Koto City Nakanoshima Park) sits beneath the 相生橋. This riverside park is a unique feature.
星野源 (Gen Hoshino) filmed a music video near the 相生橋. His single “知らない (Shiranai)” features the bridge.
As we stand here on the 相生橋, reflect on its history. It has survived earthquakes and modernization. This bridge remains a vital part of Tokyo’s landscape. It connects not just places but also people.