ESCI 1012 Lecture Notes - Lecture 21: Dam Failure, Natural Hazard, River Engineering
Document Summary
Restricting use of flood-prone areas is remarkably effective, but not practical in all areas. Is often fought for political or economic reasons. Many areas have to rely on flood control methods that focus on river control. Reconstruction of stream channel to straighten and shorten distance. Reducing length of channel speeds drainage of water from channelized area. Two governments controlling the river, running into problems with river. If you channelize one part of the river, you have to channelize the whole thing management. Walls along sides of channel to contain water. Structures built across channel to temporarily store water. Built for flood control, hydroelectric power, water supply for irrigation drinking and recreation. Levees and dams protect from floods but are subject to failure and tend to give a false sense of security. O(cid:290)ce (cid:363)e built the(cid:289), (cid:363)e do(cid:290)"t (cid:289)ai(cid:290)tai(cid:290) the(cid:289) Erosion of bank side by flowing water. Or seepage through that erodes other side of levee.
