Transcription of 9 Floodwalls and flood embankments - GOV.UK
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9 Floodwalls and flood embankments - GOV.UK
C E RickardFDG2 Chapter 9 107 Aug099 Floodwalls and flood IntroductionThe construction of Floodwalls and embankments has been the traditional means of protecting low-lying communities and infrastructure against flooding. This chapter covers the design of new and remedial works for any form of floodwall or embankment that can be referred generically as flood defences . This includes temporary flood defences and the recently introduced demountable flood defences. The photographs and diagrams within the chapter illustrate a range of design solutions. These are presented as examples and are not a substitute for proper investigation and design to suit each specific are many thousands of kilometres of flood embankments and hundreds of kilometres of Floodwalls alongside our rivers and streams. The majority of the major defences in England and Wales are maintained by the Environment Agency, but there are also many walls and embankments along ordinary watercourses that are owned by third parties who undertake their maintenance responsibilities with varying degrees of commitment.
The crest level of a flood defence is a fundamentally important parameter for the design, construction and long-term maintenance of the defence. This is because it establishes the standard of defence, or the severity of the flood against which the flood defence provides protection. This has historically been
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