 The largest ones are the Kanmonkyo Bridge linking Kitakyushu and Shimonoseki (on Kyushu and Honshū respectively) via the Kanmon Straits and the Wakato Bridge linking the wards of Tobata and Wakamatsu.There are smaller bridges over the Onga River on the western border of the city.On September 30, 2005, ownership of the Wakato Bridge was transferred from Japan Highway Public Corporation to Kitakyushu; on April 1, 2006 the bridge was transferred to the control of the Kitakyushu City Road Public Corporation.