The construction of the bridge began in 2007 . On 31 March 2012 the highest and longest suspension bridge to date in the whole world was inaugurated in Hunan Province of China. The structure is just over a mile and is suspended about 350 feet above a deep canyon. The bridge is designed for four lanes of vehicular traffic.
Province of Hunan, ChinaThe Human Province has abundant coal mines. The extraction of this mineral is one of the main economic resources of the area.