At 11 o'clock on February 1, the world's largest span stiff skeleton concrete arch bridge - Tian'e Longtan Bridge on the old highway from Nandan to Tian'e under the old highway in Guangxi was completed and opened to traffic, which is the world's first arch bridge with a span of more than 600 meters.
It is understood that Tian'e Longtan Bridge is a key scientific and technological project in the national transportation industry, located 6 kilometers upstream of Longtan Dam in Tian'e County, Hechi City, across the Hongshui River, with a total length of 248855 meters, the main bridge is a calculated span of 600 meters of upward bearing stiff skeleton concrete arch bridge, two-way four lanes, design speed of 100 kilometers per hour, the main project of the bridge in December 2020 will be fully started.
At the end of 2022, the Nandan section of the Nantian Expressway to the Tian'e section will be opened to traffic, such as today's Elongtan Bridge will be completed after the completion of the Nantian Expressway, the driving time from Pojie Township to Xiangyang Town will be shortened from the original 2 hours to about 20 minutes, and the driving time from Nandan County to Xialaoxiang in Tian'e County will be shortened from the original three and a half hours to about one and a half hours, which will effectively open up the traffic "artery" of Guangxi and Guizhou provinces and regions, and promote the integration of Tian'e County into the Nanning 3-hour economic circle and Guiyang 2-hour economic circle. Improve the transportation of agricultural and sideline products and personnel exchanges in the areas along the route.
Reporter Wang Jie, Li Jialiang, Mo Xianglong).
CCTV news client).