120 years. That’s how long engineers want the Hong Kong-Zhuhai-Macau Bridge to last. Given the suspension cables, artificials islands, and even an underground tunnel, the HZMB just might.
Can We Power the World With a Single Energy Grid? – https://youtu.be/aE6EQyOFNkM
“The project includes a 29.6 km dual 3-lane carriageway in the form of bridge-cum-tunnel structure comprising a tunnel of about 6.7 km; two artificial islands for the tunnel landings west of the HKSAR boundary; and associated works including civil and structural works, environmental mitigation, drainage, electrical and mechanical, traffic control and surveillance system, etc.”
How would engineers build the Golden Gate Bridge today?
“The Golden Gate Bridge is a suspension bridge, meaning it relies on cables and suspenders under tension along with towers under compression to cross a long distance without any intermediate supports. The roadway deck hangs from vertical suspenders that connect to the two main cables that run between the towers and the anchors on the end.”
Bridge to China brings threat for Hong Kong’s native pink dolphin
“The Chinese white dolphin, which appears pink because of blood vessels beneath its skin, was the official mascot of the former British colony’s handover to China in 1997.But large projects, including recent work on the $19-billion bridge across the Pearl River estuary, threaten the animals, whose number has slumped nearly 80 percent over the past decade to just 47.”
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