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ATTACHMENT A INDIAN RIVER COUNTY RULES & REGULATIONS FOR ISSUANCE OF EMERGENCY PERMITS FOR SHORELINE PROTECTION Definitions : Adverse Impacts — Impacts to the coastal system that may cause a measurable interference with the natural functioning of the system. Beach — A zone of consolidated material that extends landward from the mean low water line to the place where there is a marked change in material or physiographic form, or to the line of permanent vegetation. Declaration of Emergency - A resolution passed by the Indian River County Board of County Commissioners declaring a state of emergency due to the approach or passage of a coastal storm, as authorized by Chapter 252 .38, Florida Statutes. If the State of Florida issues a declaration of emergency that includes Indian River County in its scope, a local declaration is not required. Coastal Engineer — The position of Coastal Engineer for Indian River County. Dune — A mound, bluff or ridge of loose sediment, usually sand-sized sediment, lying upland of the beach and deposited by any natural or artificial mechanism, which may be bare or covered with vegetation and is subject to fluctuations in configuration and location. Eligible Structure — private structures or public infrastructure as follows. • Private structures include non-conforming habitable major structures and non- habitable major structures attached to non conforming habitable major structures whose failure would cause the adjoining eligible structure to become vulnerable. • Public infrastructure includes those roads designated as public evacuation routes, public emergency facilities, bridges, power facilities, water or wastewater facilities, other utilities, hospitals, or structures of local governmental, state, or national significance. Erosion — The wearing away of land or the removal of consolidated or unconsolidated material from the beach and dune system by wind, water or wave action. Erosion includes the landward horizontal movement of the mean high-water line or beach and dune system profile and the vertical lowering or volumetric loss of sediment from the beach and dune system Escarpment — A vertical or near-vertical slope occurring between the beach and dune .