Today, skyscrapers are popping up all along the shoreline, with the glow of construction work filling the night sky. Meanwhile, thousands of Taiwan residents swarm into the booming island to live and start businesses.

The island has accommodated more than 1,000 shops and companies set up by Taiwan residents, according to government statistics.

Chen Chien-hsiang, a 29-year-old man who moved from Taiwan to Pingtan two years ago, believes that the new bridge will help attract more businesses to the island and further boost its economic development.

"The new bridge means more than a mere mega project," Chen said. "It also promises a brighter future for people from Taiwan who chose to live and work here."

Infrastructure maniac

Huang Zhiwei, 22, found himself making history by lifting the last piece of the bridge girder from a ship about 80 meters below the bridge deck, an undertaking that he had never expected when he joined the project a year ago as an intern.

His parents, unhappy about their son's career choice, felt relieved after several video chats during which their son showed them his working and living conditions at the construction site.

"With so many advanced technologies and safety measures, I am convinced that we will accomplish the mission, and I am very proud of my contribution," said the young operator.

More than 1.24 million tonnes of steel have been used for the bridge, enough to build 190 Eiffel Towers, and 2.97 million cubic meters of cement, nine times the amount of cement used to build the Burj Khalifa towers in Dubai, the world's tallest skyscraper.

"We could not possibly have realized the construction 15 years ago for lack of advanced construction technologies and equipment such as the drilling machine and ship cranes we have developed today," said Xiao Shibo, an engineer of the China Railway Major Bridge Engineering Group Co., Ltd. The bridge has made history in many aspects, Xiao added.

China is dubbed as an "infrastructure maniac" for countless dazzling megaprojects, with the Chinese builders breaking their own world records.

China is home to the world's highest bridge, longest cross-sea bridge and 90 out of the 100 highest bridges built this century.

From 2015 to 2020, China's transportation investment is expected to exceed 15 trillion yuan (2.1 trillion U.S. dollars), with a substantial portion reserved for bridge construction.