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APPENDIX A. ACRONYMS AND DEFINITIONS <br />A-3 <br />DEFINITIONS <br />100-Year Flood: The term “100-year flood” can be misleading. The 100-year flood does not necessarily <br />occur once every 100 years. Rather, it is the flood that has a 1 percent chance of being equaled or exceeded <br />in any given year. Thus, the 100-year flood could occur more than once in a relatively short period of time. <br />The Federal Emergency Management Agency (FEMA) defines it as the 1 percent annual chance flood, <br />which is now the standard definition used by most federal and state agencies and by the National Flood <br />Insurance Program (NFIP). <br />Acre-Foot: An acre-foot is the amount of water it takes to cover 1 acre to a depth of 1 foot. This measure <br />is used to describe the quantity of storage in a water reservoir. An acre-foot is a unit of volume. One acre <br />foot equals 7,758 barrels; 325,829 gallons; or 43,560 cubic feet. An average household of four will use <br />approximately 1 acre-foot of water per year. <br />Asset: An asset is any man-made or natural feature that has value, including, but not limited to, people; <br />buildings; infrastructure, such as bridges, roads, sewers, and water systems; lifelines, such as electricity and <br />communication resources; and environmental, cultural, or recreational features such as parks, wetlands, and <br />landmarks. <br />Base Flood: The flood having a 1% chance of being equaled or exceeded in any given year, also known as <br />the “100-year” or “1% chance” flood. The base flood is a statistical concept used to ensure that all properties <br />subject to the National Flood Insurance Program (NFIP) are protected to the same degree against flooding. <br />Basin: A basin is the area within which all surface water—whether from rainfall, snowmelt, springs, or <br />other sources—flows to a single water body or watercourse. The boundary of a river basin is defined by <br />natural topography, such as hills, mountains, and ridges. Basins are also referred to as “watersheds” and <br />“drainage basins.” <br />Benefit: A benefit is a net project outcome and is usually defined in monetary terms. Benefits may include <br />direct and indirect effects. For the purposes of benefit -cost analysis of proposed mitigation measures, <br />benefits are limited to specific, measurable, risk reduction factors, including reduction in expected property <br />losses (buildings, contents, and functions) and protection of human life. <br />Benefit/Cost Analysis: A benefit/cost analysis is a systematic, quantitative method of comparing projected <br />benefits to projected costs of a project or policy. It is used as a measure of cost effectiveness. <br />Building: A building is defined as a structure that is walled and roofed, principally aboveground, and <br />permanently fixed to a site. The term includes manufactured homes on permanent foundations on which <br />the wheels and axles carry no weight. <br />Capability Assessment: A capability assessment provides a description and analysis of a community’s <br />current capacity to address threats associated with hazards. The assessment includes two components: an <br />inventory of an agency’s mission, programs, and policies, and an analysis of its capacity to carry them out. <br />A capability assessment is an integral part of the planning process in which a community’s actions to reduce <br />losses are identified, reviewed, and analyzed, and the framework for implementation is identified. The <br />following capabilities were reviewed under this assessment: <br />• Legal and regulatory capability <br />• Administrative and technical capability <br />• Fiscal capability