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The area, usually lowlands, adjoining the channel of a river, stream or watercourse which has been or may be covered by flood water during a regional flood or a one-in-one-hundred year flood. The area below the one in one hundred year flood line as established by the Conservation Authority or other designated Authority. Floodplain or […]
The required minimum distance from the natural boundary of a watercourse, lake or other body of water to any landfill or structural support required to elevate a floor system or pad above the flood level, so as to maintain a floodway and allow for potential land erosion.
The area adjacent to a lake which would be flooded by high water levels and/or water build up caused by high winds.
Structural changes and/or adjustments incorporated into the basic design and/or construction or alterations of individual buildings, structures or properties to protect them from flood damage. Any combination of structural and non structural additions, changes or adjustments to structures which reduces or eliminates flood damage to real estate or improved real property, water and sanitary facilities, […]
The channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the 100-year flood without cumulatively increasing the water surface elevation more than one foot at any point. That portion of the Flood Risk Area which contains the stream channel and adjacent areas of the […]
All that land in a floodplain not lying within a delineated floodway. Land within a floodway fringe is subject to inundation by relatively low velocity flows and shallow water depths.
Lands which are or may be inappropriate for urban development by reason of having inherent or natural environmental hazards such as susceptibility to flood or erosion, poor drainage, organic soils, steep slopes or any physical condition or limitation and which, if developed, may lead to the deterioration or degradation of the environment or cause property […]
The perpendicular distance measured from sea level to the highest point of a building or structure including any attachments thereto.
Impervious area An area with a surface which prevents or significantly retards the soakage of water into the ground. Includes: roofs; paved areas including driveways and sealed/compacted metal parking areas, patios; sealed and compacted metal roads; and layers engineered to be impervious such as compacted clay. Excludes: grass and bush areas; gardens and other vegetated […]
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