31. It is very effective at completely eliminating beaver damming of a culvert. 32. The lake was formed by damming Shades Creek near Green Springs Highway. 33. The reservoir has been formed by damming the River Tamar. 34. Environmentalists accuse the bureau of destroying ecosystems by damming rivers like the Colorado. 35. It said Slovakia also acted illegally by forging ahead and damming the river. 36. But Chinese leaders have dreamed of damming the river since early this century. 37. China bills the damming as the world's largest water conservancy project. 38. Pollution and damming rivers also is hurting natural stocks, the study found. 39. The lake was formed by damming the mountain streams flowing down Ooty valley. 40. Several artificial reservoirs have been constructed by damming the county's creeks.
