Clay Core Rock-fill Dam
dam with narrow clay core
earth-rock dam with clay core
earth-rock fill dam with clay core
earth-rockfill dam with clay core
embankment dam with clay core
Lianghekou Rockfill Dam with Clay Core
Pubugou clay core rockfill dam
rock-fill dam with sloping clay core
weathered material-filled dam with clay core
clay central core embankment dam
core barrel with rubber core container