High above Beijing’s bustling streets sits a modern marvel. It is the Sanyuan Bridge. Opened in 1984, it quickly became a landmark. The Sanyuan Bridge links three major passageways. These are the Third Ring Road, Jingshun Road, and the Airport Expressway.
Imagine the scene in 2015. The Sanyuan Bridge was showing its age. City authorities knew it needed replacing. The challenge? How to replace it quickly. The Sanyuan Bridge carries an immense volume of traffic every day. Disruptions would cause huge traffic jams.
A bold plan emerged. Replace the entire bridge in just 43 hours. The project commenced at 11 PM on November 13, 2015. The old bridge was carefully dismantled. The construction team split the old girder into sections. Cranes lifted away the pieces. The inner ring was divided into fifteen pieces. The outer ring was cut into twelve. Some pieces weighed up to 139 tonnes.
Two powerful carriers moved the new steel girder bridge. These Shen Tuo girder carriers weighed 216 tonnes each. They ran on 96 tires. Precision was key. The carriers used Beidou, video, and infrared positioning equipment.
At 11:30 AM on November 15th, the new bridge was maneuvered into place. The new girder weighed over 1,300 tonnes. It was lowered with incredible accuracy. Adjustments ensured perfect alignment. The Sanyuan Bridge replacement was a huge success. It was completed in a single weekend.
The Sanyuan Bridge now stands as a testament to modern engineering. It is also a solution to traffic challenges. It carries over 200,000 vehicles daily. Its rapid replacement was a first for a major traffic node in a Chinese city.
The Sanyuan Bridge also lends its name to this entire region of Beijing. Few bridges in Beijing have that distinction. The Sanyuan Bridge even has its own subway station. Lines 10 and the Airport Express stop at Sanyuanqiao Station.
As you stand here, consider the significance of the Sanyuan Bridge. It is a vital transportation hub. The Sanyuan Bridge is a symbol of Beijing’s progress. It shows how the city embraces innovation. The Sanyuan Bridge ensures smooth traffic flow. So next time you cross the Sanyuan Bridge, remember its story.