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NAU GLG 112 - Floodplains
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GLG 112 1st Edition Lecture 37Outline of Last LectureA. Regional (downstream) floods1. What are they?2. Where are they?3. Why and how do they happen?4. ExamplesIII. Humans and floodingA. UrbanizationB. Human response 1. The structural approachOutline of Current Lecture 2. Floodplain Regulationa. Flood insuranceb. Floodplain useIV. Flagstaff FloodingCurrent LectureThere once was a time when you could not get flood insurance from any privately owned insurance company because they never made enough profit from it. That is why the National Flood Insurance Program was created in 1968. All cities are eligible if they follow the rules. First, there can be no new construction on the 20-year floodplain. Also there is no flood These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.insurance available if there are already buildings. Second, new construction on the 100 year floodplain is allowed if the building is floodproof. Flood insurance is also very expensive here. Third, flood insurance is required if you live on the 500-year floodplain. It is cheaper here. Flagstaff joined this program in 1983.Floodplains are often used for recreation, parking lots, and agriculture to decrease the amount of damage when flooding happens. We get flooding in flagstaff because of the Rio de Flag. This is a manmade channel that runs through town. They actually moved the natural channel south of the train tracks so there would be less of it in town. However, expansion forced buildings to be made along this new channel. There are some areas (like downtown) where the channel is not big enough to withstand a 100 year


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NAU GLG 112 - Floodplains

Type: Lecture Note
Pages: 2
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