GUANLING, June 13 (Xinhua) -- Tourism-related equipment at the Huajiang Grand Canyon Bridge is under construction. The suspension bridge has a vertical height of 625 meters from the bridge deck down to the river surface -- roughly twice the height of the Eiffel Tower. The 2,890-meter bridge, with a span of 1,420 meters, is also the world's largest span bridge to be built in a mountainous area. It is expected to open to traffic this year.