08-16-2004 Planning Packet - Laserfiche WebLink

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(2) Defined floodplain boundar>% 100 year flood. 931.5 feet MSI Mean sea lex el means elevation measured in feet. Obsiriiciton means any dam. wall, wharf, embankment. Icvcc. dike, pile, bridge, abutment, projection. e.\cavation. channel rectification, culvert, building, wire, fence, stockpile, refuse, fill, structure, or matter in. along, across, or projecting into any channel, watercourse, wetlands or regulatory flood hazard area which may impede, retard or change the direction of the flow of water, either in itself or by catching or collecting debns earned by such water, or that is placed where the flow of water miglit carry the same dow nstream to the damage of life and property (1) \atnrcil obstruction means any rock. tree, gravel or analogous natural matter that is an obstniction and has been located w ithin the floodplain by a nonliuman cause (2) Artificial obstruction means any obstruction which is not a natural obstruction. Ortlinary high uatcr lexel tOHH'I.} means the boundary of public w aters and wetlands, and shall be an elevation delineating the highest water level which has been mamtamed for a sufficient period of time to lca\ c evidence upon tlie landscape, commonly that pomi where the naiiiral xcgciatioii changes from predominantly aquatic to predominantly terrestrial. For water courses, the ordinarx high water lex cl is the cicxation of the top of the bank of the channel. For reserx oirs and flowages. the ordinary high xxatcr lex el is the operating elevation of the normal summer pool. The designated OIIWL has been dctennined by the slate department of natural resources for certain xx atcr bodies as indicated in article IX of this chapter. Reach means a hydraulic engineering term to desenbe a longitudinal segment of a stream or nver influenced by a natural or manmade obstruction In an urban area, the segment of a .stream or nver betw cen two consecutive bndge crossings xvould most t>pically constitute a reach. Regional flood means a flood which is rcprcsentuiixc of large floods known :o hax’e occuned generally in the state and reasonably charactciistic of xxhat can be expected to occur on an ax erage frequency in the magnitude of the 100-year recurrence intcrx al. Tlic term is sx-nonx-mous xx ith the term "base flood" used in the flood insurance study. Structure means anxihing which is built, constructed or erected, an edifice or building of any kind, or any piece of work artificially built up or composed of pans joined together in some definite manner, which requires a location on, beloxx or above tlie ground, land or xvaicr. Hetlands and marshland mean lowlands covered with shallow mi sometimes