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The ILH in more detail Get involved in CIRIA Fundamentals projects and proposals Chapter 1 Introduction: defines the structure, aims and scope of the handbook and explains how the document builds on and compliments existing manuals and guidance. Asset management of masonry coastal structures (P2383) Chapter 2 Understanding levee concepts: provides a generic management framework CIRIA will produce a significantly for flood defence systems. The chapter connects overlapping topics, bridges differences between countries, and puts levees in context with other parts of the flood defence system. updated manual that will build on and supersede the 1992 publication Old Chapter 3 Function, forms and failure of levees: describes and illustrates the main types of Waterfront Walls - management, levees and how they function with regard to flood risk. It discusses the influence of other maintenance and rehabilitation (B13). structures associated with levees and the multi-functionality of levees. A section is also devoted to examples of the basics of failure modes for different types of levee. Dam and Reservoir conduits (tunnels, culverts and pipes) – Managing levees inspection, monitoring, investigation, Chapter 4 Operation and maintenance: addresses work that does not require detailed maintenance and repair (P2870) design. It discusses the role of maintenance in the face of deterioration and climate change This project aims to build on existing including good practice and innovative methods. It highlights the competing goals of flood knowledge and best practice, protection, the environment, and social well-being. along with emerging research Chapter 5 Levee inspection, assessment and risk attribution: includes good practice and development, to produce a procedures for diagnosis and condition assessment of levee structures to allow consistent succinct report that can be used by and appropriate levels of reporting, including visual inspection, investigations and risk practitioners to help assess the risks assessment. The chapter sets out a tiered approach to investigation of levee condition associated with reservoir conduits. including inspection techniques and different types of investigations and provides Demonstrating the benefits and recommendations for levee system risk assessment. The overall approach to monitoring is explained. Information systems to support levee management are discussed. resolving the issues of retrofitting Sustainable Drainage Systems (SuDS) Chapter 6 Emergency managementand operations: provides guidance on breach modelling (Phase 2) (P2904) with emphasis on the limitations and uses of the methods and preparing and implementing emergency action plans. It also includes guidance on event management, including methods This project will collate and evaluate for emergency breach repairs, post flood clean-up and data collection. potential methodologies for assessing costs and benefits of retrofitting Toolbox SuDS with a view to developing Chapter 7 Site characterisation and data requirements: details site investigation methods approaches specifically focused on and explains why these are critical for establishing appropriate boundary conditions Suds but consistent with the growing and properties for design. It covers desk study procedures, intrusive and non-intrusive body of work on ecosystem services techniques for sampling and field investigation as well as relevant laboratory testing assessment and Green Infrastructure techniques and approaches to data interpretation that are suited to levees and the ground evaluation. that levees are built on. This is followed by a section on recommendations for minimum or Exceedance of urban drainage systems target levels of protection to provide flexible standards. It then establishes design loading - supporting uptake (P2906) criteria including environmental and social criteria for both coastal and fluvial levees. A This project will identify the barriers section on the effects of climate change is also included in this chapter. to using highways as exceedance Chapter 8 Physical processes and tools for levee assesment and design: demonstrates pathway(including flood water the need for a holistic approach to the design of levees that embraces both geotechnical conveyance and storage) and develop and hydraulic engineering disciplines. It sets out the physical processes that control the the science and guidance to overcome performance of levees and indicates which analytical engineering methods and techniques best represent these characteristics. The chapter provides limit state equations for common these challenges providing confidence damage and deterioration processes and discusses tools available for assessing breach and in using highways to manage inundation. It provides examples of typical engineering calculations for both the assessment exceedance. of existing structures and the design of completely new levees. The chapter also includes a Update to the Coastal and marine summary of sophisticated geotechnical and hydraulic modelling techniques. environmental site guide and pocket book (P2853) Making changes Since the publication of CIRIA’s Chapter 9 Design: highlights the need for early specialist input from a variety of disciplines Coastal and marine environmental site and a balance between engineering, environmental and social factors. Sections are included guide (C584) in 2003 and associated for design of remedial and improvement works, new levees, and removal of levees, including pocket handbook Coastal and marine sections on planning and options appraisal. It provides recommendations on methods for environmental pocket book (C594) taking levees out of service including realignment options. The chapter also highlights the there is now a need to update potential impacts on adjacent sections (eg increased flood levels), and explains how to deal with these. Design manuals and codes are referenced where appropriate. This chapter the content in light of recent and also sets out the engineering principles and procedures that govern and characterise how forthcoming changes in legislation. levees perform. It demonstrates how these techniques can be used for design purposes and Guidance on communicating local provides guidance and examples of good practice. flood risk (RP975) Chapter 10 Construction: describes how construction practices and standards have To support the local authorities CIRIA changed over time. It includes implementing economic good practices, planning, designing and other partners will be looking for for ease of construction, sourcing of suitable earthworks materials, practicing sustainable opportunities to share and develop and innovative construction methods for decommissioning, maintenance, remediation, good practice on communicating local improvements, and new works. It highlights common problems and risks faced on different flood risk effectively to the public. sites, including the need for a good knowledge of foundations, how soil variability can To find out more and to get be addressed, dealing with a flood event during construction, programme constraints, environmental issues as well as the need for good quality control, monitoring and record involved contact CIRIA on keeping practices. A section is also included on availability and selection of materials, and tel: +44 (0) 20 7549 3300 one on plant and construction equipment, in particular for earthworks. or email: enquiries@ciria.org 27


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