The "at-grade to grade-separated" intersection construction project of Guantian Road and Hunan-Guangxi Railway in Dong'an County completed box girder installation of the 280-meter-long overpass bridge on January 29, achieving a critical milestone. This project is a key project related to people's livelihood in Dong'an County. The main route is constructed according to urban arterial road standards, with the bridge spanning 280 meters in length and 16 meters in width. Upon completion, it will enhance traffic safety and efficiency significantly. (Photo/Cai Xiaoping)

The "at-grade to grade-separated" intersection construction project of Guantian Road and Hunan-Guangxi Railway in Dong'an County completed box girder installation of the 280-meter-long overpass bridge on January 29, achieving a critical milestone. This project is a key project related to people's livelihood in Dong'an County. The main route is constructed according to urban arterial road standards, with the bridge spanning 280 meters in length and 16 meters in width. Upon completion, it will enhance traffic safety and efficiency significantly. (Photo/Cai Xiaoping)

The "at-grade to grade-separated" intersection construction project of Guantian Road and Hunan-Guangxi Railway in Dong'an County completed box girder installation of the 280-meter-long overpass bridge on January 29, achieving a critical milestone. This project is a key project related to people's livelihood in Dong'an County. The main route is constructed according to urban arterial road standards, with the bridge spanning 280 meters in length and 16 meters in width. Upon completion, it will enhance traffic safety and efficiency significantly. (Photo/Cai Xiaoping)

The "at-grade to grade-separated" intersection construction project of Guantian Road and Hunan-Guangxi Railway in Dong'an County completed box girder installation of the 280-meter-long overpass bridge on January 29, achieving a critical milestone. This project is a key project related to people's livelihood in Dong'an County. The main route is constructed according to urban arterial road standards, with the bridge spanning 280 meters in length and 16 meters in width. Upon completion, it will enhance traffic safety and efficiency significantly. (Photo/Cai Xiaoping)

The "at-grade to grade-separated" intersection construction project of Guantian Road and Hunan-Guangxi Railway in Dong'an County completed box girder installation of the 280-meter-long overpass bridge on January 29, achieving a critical milestone. This project is a key project related to people's livelihood in Dong'an County. The main route is constructed according to urban arterial road standards, with the bridge spanning 280 meters in length and 16 meters in width. Upon completion, it will enhance traffic safety and efficiency significantly. (Photo/Cai Xiaoping)

责编：冯宇轩

一审：冯宇轩

二审：田梦瑶

三审：秦慧英

来源：湖南日报·新湖南客户端