Tsujunkyo (通潤橋), built in 1854, was not built to be a bridge but as an aqueduct to water the Shiroito Plateau south of Yabe. To save on material costs, the center of the bridge is lower than either side. Knowing that this could result in an accumulation of sediment, the bridge architects incorporated a flushing system, which is what the bridge is most famous for now.
Damage to the aqueduct due to the quakes was significant, but Kumanichi reports that Yabe has contracted with a local company for repairs which are expected to be completed by 2018. The construction will include stabilizing stones shifted in the quakes and replacing mortar to again allow water flow. - William