China has built a unique bridge - not through the river, and along the river.
Bashny.Net
More recently, in the Chinese province of Hubei built a new bridge, which is called China's first "ecological highway." 4-kilometer-long bridge runs right along the riverbed. His specially built in such a way as to cut down the forest.
We believe that it is a small but incredibly important step toward perhaps the main problems of mankind - conservation of the Earth.