This is one of the bridges built over Nishiyokobori River. It was originally called "Tomitamachi Bridge" and later "Tonobashi Bridge". The name Shinano can be seen in records from the Genroku period (1688-1704). At the time, the bridge was 13 ken 1 shaku (approximately 25.9m) long and 2 ken (approximately 3.9m) wide. Nishiyokobori River is said to have been excavated by the first lumber merchant, Nagase Shichiroemon, and runs north to south through the center of Osaka from Tosabori River to Dotonbori River. Various merchants, especially lumber merchants and porcelain merchants, lined the banks. With the opening of the city tram in 1913, Shinanobashi Bridge was rebuilt into a three-span (with two piers along the way) simple steel girder iron bridge (bridge length 23.0m, width 22.0m), but Nishiyokobori River was filled in between 1964 and 1971 for the construction of the Hanshin Expressway, and the bridge disappeared. Nowadays, only a stone monument remains.