A staff member works at the construction site of the Yellow River tunnel in Jinan, capital of east China's Shandong Province, March 27, 2020. China's first Yellow River tunnel has recently resumed its all constructions, according to the China Railway Construction Corporation Limited. Located in eastern China's Jinan, the tunnel is the country's and even the world's widest shield tunnel under construction for both rail and road transport. With a total length of 4.76 km, the tunnel contains two levels. A two-way six-lane highway is on the upper level and the lower level is reserved for rail transit, flues and escape channels. (Xinhua/Wang Kai)