China's Hong Kong-Zhuhai-Macau Bridge opens as world's longest sea crossing at 34 miles

China's Hong Kong-Zhuhai-Macau Bridge, costing £14.8 billion, is the world's longest sea crossing at 34 miles. It connects major cities in the Pearl River Delta and allows travel between Hong Kong and Zhuhai in about 40 minutes. The bridge features a complex structure, including a 7.4-mile road, an 18.3-mile main bridge, and an 8.3-mile link road. It uses 420,000 tonnes of steel and has a deck area nearly the size of 100 football pitches. Engineers faced challenges in constructing the tunnel, including strong winds and water currents. The final connection required the largest lifting barge globally and precise engineering to ensure a successful fit.