EESC 2203 Lecture Notes - Lecture 9: Catastrophic Failure, River Engineering, Speleothem
14 Mar 2016
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Document Summary
Living with floods: who takes costs of loods, must be ready, taxpayers, government. How do we want to regulate lood-prone areas. The inluence of a dam does not inluence downstream if there are tributaries that feed into the stream downstream. Problem with levees, keeps all water in the river - so if all water goes downstream, could cause water to low very quickly, leading to loods. Just pressure of water crushed levees that weren"t strong enough. Wetlands protect cities from loods: they add roughness - slows down water. People living in lood plains face hard choices: either move or take protective strategies, escape plan needed. Cities build parks next to river as bufer zone - Flood control dams: reduce peak lood discharge, efects decrease rapidly with downstream distance, tend to be less efective for larger loods. Many dams are for recreational use, not so much lood control.
