Floodplain maps serve as the basis for determining whether homes or buildings require flood insurance under the National Flood Insurance Program run by the Federal Emergency Management Agency (FEMA). Approximately $650 billion in insured assets are now covered under the program. FEMA is modernizing floodplain maps to better serve the program. However, concerns have been raised as to the adequacy of the base map information available to support floodplain map modernization. Elevation Data for Floodplain Mapping shows that there is sufficient two-dimensional base map imagery to meet FEMA's flood map modernization goals, but that the three-dimensional base elevation data that are needed to determine whether a building should have flood insurance are not adequate. This book makes recommendations for a new national digital elevation data collection program to redress the inadequacy. Policy makers; property insurance professionals; federal, local, and state governments; and others concerned with natural disaster prevention and preparedness will find this book of interest.
Federal Emergency Management Agency (FEMA) Flood Insurance Rate Maps portray the height and extent to which flooding is expected to occur, and they form the basis for setting flood insurance premiums and regulating development in the floodplain. As such, they are an important tool for individuals, businesses, communities, and government agencies to understand and deal with flood hazard and flood risk. Improving map accuracy is therefore not an academic question-better maps help everyone. Making and maintaining an accurate flood map is neither simple nor inexpensive. Even after an investment of more than $1 billion to take flood maps into the digital world, only 21 percent of the population has maps that meet or exceed national flood hazard data quality thresholds. Even when floodplains are mapped with high accuracy, land development and natural changes to the landscape or hydrologic systems create the need for continuous map maintenance and updates. Mapping the Zone examines the factors that affect flood map accuracy, assesses the benefits and costs of more accurate flood maps, and recommends ways to improve flood mapping, communication, and management of flood-related data.
This open access book addresses the way in which urban and urbanizing regions profoundly impact and are impacted by climate change. The editors and authors show why cities must wage simultaneous battles to curb global climate change trends while adapting and transforming to address local climate impacts. This book addresses how cities develop anticipatory and long-range planning capacities for more resilient futures, earnest collaboration across disciplines, and radical reconfigurations of the power regimes that have institutionalized the disenfranchisement of minority groups. Although planning processes consider visions for the future, the editors highlight a more ambitious long-term positive visioning approach that accounts for unpredictability, system dynamics and equity in decision-making. This volume brings the science of urban transformation together with practices of professionals who govern and manage our social, ecological and technological systems to design processes by which cities may achieve resilient urban futures in the face of climate change.
Alluvial fans are gently sloping, fan-shaped landforms common at the base of mountain ranges in arid and semiarid regions such as the American West. Floods on alluvial fans, although characterized by relatively shallow depths, strike with little if any warning, can travel at extremely high velocities, and can carry a tremendous amount of sediment and debris. Such flooding presents unique problems to federal and state planners in terms of quantifying flood hazards, predicting the magnitude at which those hazards can be expected at a particular location, and devising reliable mitigation strategies. Alluvial Fan Flooding attempts to improve our capability to determine whether areas are subject to alluvial fan flooding and provides a practical perspective on how to make such a determination. The book presents criteria for determining whether an area is subject to flooding and provides examples of applying the definition and criteria to real situations in Arizona, California, New Mexico, Utah, and elsewhere. The volume also contains recommendations for the Federal Emergency Management Agency, which is primarily responsible for floodplain mapping, and for state and local decisionmakers involved in flood hazard reduction.
Sustainability, resilience, and climate change are top of mind for planners and floodplain managers. For subdivision design, those ideas haven't hit home. The results? Catastrophic flood damage in communities across the country. This PAS Report is out to end the cycle of build-damage-rebuild and bring subdivision design into line with the best of floodplain planning. Readers will get the tools they need to save lives, protect property, and lay the foundation for a better future.
NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT -- OVERSTOCK SALE -- Signficantly reduced lsit price FEMA produced this series of 37 fact sheets to provide technical guidance and recommendations concerning the construction of coastal residential buildings. The fact sheets present information aimed at improving the performance of buildings subject to flood and wind forces in coastal environments. Photographs and drawings illustrate National Flood Insurance Program (NFIP) regulatory requirements, the proper siting of coastal buildings, and recommended design and construction practices for building components, including structural connections, the building envelope, and utilities. Many of the fact sheets also include lists of FEMA and other resources that provide more information about the topics discussed. Where appropriate, resources are accompanied by active web links. A list of the individual fact sheets that are contained inFEMA P-499, follows.Category 1 GeneralFact Sheet No. 1.1, Coastal Building Successes and FailuresFact Sheet No. 1.2, Summary of Coastal Construction Requirements and RecommendationsFact Sheet No. 1.3, Using a Flood Insurance Rate Map (FIRM)Fact Sheet No. 1.4, Lowest Floor ElevationFact Sheet No. 1.5, V-Zone Design and Construction CertificationFact Sheet No. 1.6, Designing for Flood Levels Above the BFEFact Sheet No. 1.7, Coastal Building MaterialsFact Sheet No. 1.8, Non-Traditional Building Materials and SystemsFact Sheet No. 1.9, Moisture Barrier Systems Category 2 Planning Fact Sheet No. 2.1, How Do Siting and Design Decisions Affect the Owner's Costs?Fact Sheet No. 2.2, Selecting a Lot and Siting the Building Category 3 Foundations Fact Sheet No. 3.1, Foundations in Coastal AreasFact Sheet No. 3.2, Pile InstallationFact Sheet No. 3.3, Wood-Pile-to-Beam ConnectionsFact Sheet No. 3.4, Reinforced Masonry Pier ConstructionFact Sheet No. 3.5, Foundation Walls Category 4 Load Paths Fact Sheet No. 4.1, Load PathsFact Sheet No. 4.2, Masonry DetailsFact Sheet No. 4.3, Use of Connectors and Brackets Category 5 Wall Systems Fact Sheet No. 5.1, HousewrapFact Sheet No. 5.2, Roof-to-Wall and Deck-to-Wall FlashingFact Sheet No. 5.3, Siding Installation in High-Wind RegionsFact Sheet No. 5.4, Attachment of Brick Veneer In High-Wind Regions Category 6 Openings Fact Sheet No. 6.1, Window and Door InstallationFact Sheet No. 6.2, Protection of Openings Shutters and Glazing Category 7 - Roofing Fact Sheet No. 7.1, Roof Sheathing InstallationFact Sheet No. 7.2, Roof Underlayment for Asphalt Shingle RoofsFact Sheet No. 7.3, Asphalt Shingle Roofing for High-Wind RegionsFact Sheet No. 7.4, Tile Roofing for High-Wind AreasFact Sheet No. 7.5, Minimizing Water Intrusion through Roof Vents in High-Wind RegionsFact Sheet No. 7.6, Metal Roof Systems in High-Wind Regions Category 8 Attachments Fact Sheet No. 8.1, Enclosures and Breakaway WallsFact Sheet No. 8.2, Decks, Pools, and Accessory StructuresFact Sheet No. 8.3, Protecting Utilities Category 9 Repairs Fact Sheet No. 9.1, Repairs, Remodeling, Additions, and Retrofitting FloodFact Sheet No. 9.2, Repairs, Remodeling, Additions, and Retrofitting Wind Category G Guide Fact Sheet No. G.1, Technical Fact Sheet GuideFact Sheet No. G.2, References and Resources"
