Aerial photo taken on Dec. 26, 2019 shows the closure of Wufengshan Yangtze River Bridge, China's first suspension bridge that integrates an expressway and a railway, in east China's Jiangsu Province. The double-deck bridge linking Yangzhou and Zhenjiang in Jiangsu completed its main body here on Thursday. With a main span of 1,092 meters, the bridge boasts an eight-lane expressway on the upper deck and a high-speed railway on the lower deck. (Xinhua/Li Bo)

Aerial photo taken on Dec. 26, 2019 shows the closure of Wufengshan Yangtze River Bridge, China's first suspension bridge that integrates an expressway and a railway, in east China's Jiangsu Province. The double-deck bridge linking Yangzhou and Zhenjiang in Jiangsu completed its main body here on Thursday. With a main span of 1,092 meters, the bridge boasts an eight-lane expressway on the upper deck and a high-speed railway on the lower deck. (Xinhua/Li Bo)

Aerial photo taken on Dec. 26, 2019 shows the closure of Wufengshan Yangtze River Bridge, China's first suspension bridge that integrates an expressway and a railway, in east China's Jiangsu Province. The double-deck bridge linking Yangzhou and Zhenjiang in Jiangsu completed its main body here on Thursday. With a main span of 1,092 meters, the bridge boasts an eight-lane expressway on the upper deck and a high-speed railway on the lower deck. (Xinhua/Li Bo)

Aerial photo taken on Dec. 26, 2019 shows the closure of Wufengshan Yangtze River Bridge, China's first suspension bridge that integrates an expressway and a railway, in east China's Jiangsu Province. The double-deck bridge linking Yangzhou and Zhenjiang in Jiangsu completed its main body here on Thursday. With a main span of 1,092 meters, the bridge boasts an eight-lane expressway on the upper deck and a high-speed railway on the lower deck. (Xinhua/Li Bo)

Aerial photo taken on Dec. 26, 2019 shows the closure of Wufengshan Yangtze River Bridge, China's first suspension bridge that integrates an expressway and a railway, in east China's Jiangsu Province. The double-deck bridge linking Yangzhou and Zhenjiang in Jiangsu completed its main body here on Thursday. With a main span of 1,092 meters, the bridge boasts an eight-lane expressway on the upper deck and a high-speed railway on the lower deck. (Xinhua/Li Bo)