Core Points - The world's first "widening" bridge will be constructed in the Guangdong-Hong Kong-Macao Greater Bay Area, enhancing traffic efficiency between cities on the west and east banks of the Pearl River [1] - The project, known as the connection section project, will start construction and is expected to be completed by 2027 [1] - The project includes the widening of two bridges and the renovation of one interchange, with a total length of 2033 meters [1] Group 1 - The main focus of the connection section project is the renovation of the South Zhong Bridge, which will be widened by 2.25 meters on each side to accommodate eight lanes of traffic [2] - The project aims to avoid mismatched traffic capacity between the Lion Ocean Channel and the Guangzhongjiang Expressway, which previously did not connect directly [2] - The South Zhong Bridge renovation is noted as the world's first central cable-stayed bridge widening project, utilizing a complex structure that has no precedent in domestic or international engineering [2] Group 2 - The Lion Ocean Channel project is a significant engineering endeavor, featuring a total length of approximately 35 kilometers and comprising 16 lanes across two levels [2] - The construction of the Lion Ocean Bridge's east main tower has reached a height of 171.1 meters, marking a significant milestone in the project [2] - The project is positioned as a major infrastructure development within the Guangdong-Hong Kong-Macao Greater Bay Area [2]

Core Points - The world's first "splicing widening" bridge will be constructed in the Guangdong-Hong Kong-Macao Greater Bay Area, enhancing traffic efficiency between cities on the west and east banks of the Pearl River [1] - The project, known as the connection section project, will start construction and is expected to be completed by 2027 [1] - The project includes the widening of two bridges and the renovation of a hub interchange, with a total length of 2,033 meters [1] Project Details - The main focus of the connection section project is the renovation of the South Central Bridge, which will be widened by 2.25 meters on each side to accommodate eight lanes of traffic, matching the design of the Lion Rock Channel [2] - The project will also upgrade the Fangma Interchange, converting it from a four-lane to a six-lane configuration to optimize traffic flow [2] - The renovation of the South Central Bridge is noted as the world's first splicing widening project for a central cable-stayed bridge, a complex structure with no prior examples in domestic or international projects [2] Current Progress - The Lion Rock Channel project has entered a peak construction phase, with the completion of the T32 steel shell segment installation for the East Main Tower of the Lion Rock Bridge, reaching a height of 171.1 meters [2] - The Lion Rock Channel is a significant multi-layer highway project spanning approximately 35 kilometers, featuring a total of 16 lanes across two levels [2]