The reporter learned from China Railway Eleventh Bureau Group Co., Ltd., that on the 18th, with the accurate placement of the last 40-meter-long, 157-ton prefabricated box girder, the Zamao River Special Bridge on the Tongsai Expressway was successfully completed, laying a solid foundation for the completion and opening of the entire line to traffic. The Tongsai Expressway is an important part of the national highway network. It is also an important section of the Zhangye-Wenchuan Expressway network in Qinghai Province. The total length of the line is 204.52 kilometers. It is built using a two-way 4-lane standard. The design speed is 80 kilometers per hour in mountainous areas and 100 kilometers per hour in plain areas.

The reporter learned from China Railway Eleventh Bureau Group Co., Ltd., that on the 18th, with the accurate placement of the last 40-meter-long, 157-ton prefabricated box girder, the Zamao River Special Bridge on the Tongsai Expressway was successfully completed, laying a solid foundation for the completion and opening of the entire line to traffic. The Tongsai Expressway is an important part of the national highway network. It is also an important section of the Zhangye-Wenchuan Expressway network in Qinghai Province. The total length of the line is 204.52 kilometers. It is built using a two-way 4-lane standard. The design speed is 80 kilometers per hour in mountainous areas and 100 kilometers per hour in plain areas.