New mega bridge to speed up China’s Greater Bay Area

By Yu Tianjiao in Guangzhou Source:Global Times Published: 2019/4/2 20:53:40

Picture shows the world's widest steel box girder suspension bridge, the Humen Second Bridge. The bridge opens on Tuesday in South China's Guangzhou. Photo: Courtesy of CCCC Second Highway Engineering Co Ltd



 

Pictured is the world's widest steel box girder suspension bridge, the Humen Second Bridge. The bridge which connects the both sides of the Pearl River's estuary opened to traffic on Tuesday in Guangzhou, capital of South China's Guangdong Province. Photo: Yu Tianjiao/GT



The first vehicle drove through the 49.7-meter-wide Humen Second Bridge, the world's widest steel box girder suspension bridge on Tuesday. The bridge helps connect core sectors of the Guangdong-Hong Kong-Macao Greater Bay Area. 

The expressway opened in Guangzhou, capital of South China's Guangdong Province

"The opening of the Humen Second Bridge adds a splendid stroke on the map of Guangdong transportation; it is also a pivotal beginning of the Greater Bay Area Project," Liu Xiaohua, general manager of Guangdong Traffic Engineering Co Ltd, said at the inauguration of the bridge. 

Stretching more than 12.8 kilometers, the bridge, also known as the Nansha Bridge, spans two waterways, the Dasha and Nizhou rivers, part the of the Pearl River Delta. The area is a core region for foreign trade and a global manufacturing hub, connecting both sides of the river's estuary.

For the first time in the world, the Humen Second Bridge project involves two cross-river suspension bridges which are 1,688 meters and 1,200 meters long.  

"Managing to construct and open two suspension bridges of more than 1,000 meters in length in one project at the same time is a world-class achievement," Xian Liang, chief engineer of the Humen Second Bridge Project, told the Global Times.

The new bridge starts from Nansha, Guangzhou, at the geographic center of the Greater Bay Area, and ends at Dongguan, a leading industrial city sitting between Guangzhou and Shenzhen. It shortens the drive from Guangzhou to Dongguan, a major manufacturing hub, by 10 kilometers, and creates a much-needed link between the west and east sides of the Pearl River. 

Constructed with an eight-lane dual carriageway, the bridge is designed to handle about 100,000 vehicles per day, which is expected to greatly ease the pressure on the existing Humen Bridge.

For the past 20 years, the Humen Bridge, located 10 kilometers south of the new bridge, was the only river passage across the Pearl River Delta and it is severely congested. 

"The opening of the Humen Second Bridge will relieve the existing bridge of 30 percent of its present traffic pressure," said Zhu Xiaojin, technical director of the Humen Second Bridge Project. "The commute from southern Guangzhou to Dongguan will be cut by 30 minutes."

The Humen Second Bridge is the first "super project" to open after the government released the outline development plan for the Guangdong-Hong Kong-Macao Greater Bay Area in February. 

Built at a cost of 11.18 billion yuan ($1.76 billion), the bridge is connected with Guangzhou-Macao Expressway and Guangzhou-Shenzhen Riverine Expressway.

"As a major infrastructure project in the development of the Greater Bay Area, the Humen Second Bridge will improve inter-regional flow and logistics between both sides of the Pearl River Estuary," said bridge project leader Yang Min, vice manager of China Communications Construction Company-SHEC Fifth Engineering Co Ltd. "It will smooth the arteries of the Greater Bay Area, and invigorate the area's development."

To overcome the technological barriers, engineers used 14 different construction techniques, some developed just for the bridge

"Productive forces and technical innovations are driven by demand. We independently developed a 600-ton hydraulic erection gantry. China is improving its infrastructure production level from 'Made in China' to 'intelligent manufacturing in China,'" said Wang Bo, vice general manager of the Humen Second Bridge. 

"Together with the Huangpu Bridge in the north and the Hong Kong-Zhuhai-Macao Bridge and the under-construction Shenzhen-Zhongshan Bridge in the south, the Humen Second Bridge will take the economic cooperation of cites in the Greater Bay Area to the next level," Zhu told the Global Times on Monday.


Newspaper headline: New bridge speeds up Delta


Posted in: SOCIETY,CHINA FOCUS

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