I bet a lot of it went into the “Three Gorges Dam”. A disaster waiting to happen.
One damn big dam.
Three Gorges Dam:
The project used 27.2 million cubic metres (35.6×106 cu yd) of concrete (mainly for the dam wall), 463,000 tonnes of steel (enough to build 63 Eiffel Towers) and moved about 102.6 million cubic metres (134.2×106 cu yd) of earth.[28] The concrete dam wall is 181 metres (594 ft) high above the rock basis.
The first big earthquake in that region ought to be interesting.