Sanyuanqiao
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Sanyuanqiao1.jpg
Sanyuanqiao (or Sanyuan Overpass) is a major overpass on Beijing's northeastern stretch of the 3rd Ring Road. It was opened in the 1984 as the PRC turned 35.
The overpass links three major passageways in Beijing and the complex structure made it a speciality on its own in its first days. The Airport Expressway, Jingshun Road (China National Highway 101) and the 3rd Ring Road were interlinked.
Originally, the Airport Expressway's position was the old airport road. Today, the old airport road has become a service, or auxiliary road, to the current Airport Expressway.
The simple complexity of the overpass was tempting to tamper with, but in the 1990s, the temptation was too much (caused by excess traffic): another portion of a flyover was built for vehicles heading from the eastern 3rd Ring Road to interlink directly with the Airport Expressway.