東橋, Road bridge in Chūō-ku, Sapporo, Japan

Azuma Bridge carries National Route 12 over the Toyohira River in Sapporo, at a point where the road is known as Sapporo-Ebetsu-dori. The present 1951 structure is a Gerber truss bridge on five piers; a second, downstream span added in 1969 made it four lanes. The upstream span was replaced and widened by 2013.

In 1890 the Ebetsu road opened and a 40 m suspension bridge plus a 78 m continuous wooden bridge crossed the Toyohira River here. Floods destroyed it in 1898, 1929, 1942, 1948 and 1949; a temporary bridge stood about 150 m upstream from 1930. The present five-pier gerber truss bridge dates from 1951, a second downstream span was added in 1969, and the upstream span was replaced by 2013.

The name combines two facts: the bridge stood east of Sapporo, and the 1889 Imperial House Law made the future Taishō Emperor crown prince, or tōgū ("eastern palace"). After the 1890 opening, traffic with Sapporo grew and the villages of Shiroishi and Kami-Shiroishi gained households.

The bridge carries National Route 12 (Sapporo-Ebetsu-dori) over the Toyohira River; on the Chuo-ku side, the intersection with Kita 1-jo Kariki-dori is the starting point of National Route 275. The current upstream span was rebuilt and widened in fiscal 2013 as part of the Naeho intersection project, and the downstream span dates from 1969, giving four lanes.

The intersection on the central ward side marks the starting point of National Route 275, making it a crucial transportation junction.