Sakae Bridge, Road bridge in Abiko, Chiba and Tone, Ibaraki, Japan

Sakae Bridge crosses the Tone River for approximately 273 meters, linking Chiba and Ibaraki prefectures with a steel structure. It carries both prefectural roads Route 4 and Route 170 across the water.

Sakae Bridge opened on 21 March 1930 between Busa, now Abiko, and Bukawa, now Tone. The present bridge replaced it on 21 October 1971. A 1973 agreement made the Ibaraki governor its administrator. Heavy congestion led to the 2006 opening of Wakakusa Bridge, 10 km downstream and tolled.

The bridge's name, Sakae, is written with the character for prosperity. Since the 1971 replacement, the crossing has been managed by the governor of Ibaraki under an agreement between Ibaraki and Chiba signed on 6 August 1973. The bridge carries Prefectural Routes 4 and 170, and its approaches are known for some of the heaviest congestion in Abiko.

The bridge offers reliable crossing conditions for cars and motorcycles traveling between the prefectures. Visitors should expect local traffic patterns and plan accordingly when using this route.

The bridge's administrator is the governor of Ibaraki Prefecture, not Chiba, under a 1973 agreement between the two prefectures. The bridge is 273 meters long and carries Prefectural Routes 4 and 170. A downstream toll bridge, Wakakusa Ohashi, opened in 2006 about 10 kilometers away but has not relieved the heavy congestion here.