Ohio Administrative Code › Title 1501 - Department of Natural Resources - Administration and Director › Chapter 1501-6 - Lease of Lake Erie Submerged Lands › Section 1501-6-10 - Definitions

Current through all regulations passed and filed through July 1, 2024
(A) "Annual
			 recession rate" means the average rate, expressed in feet per year, at which
			 the recession line moves landward. The annual recession rate shall be based on
			 a time period not less than ten years nor greater than thirty years prior to
			 the year that the base-map imagery was acquired. In no case shall the annual
			 recession rate used to calculate the anticipated recession distance be less
			 than zero.
(B) "Anticipated
			 recession distance" means the center-weighted moving average of distances,
			 equal to thirty times the annual recession rate, as determined at five
			 consecutive transects. Anticipated recession distances less than thirty times
			 the "calculated accuracy limit" (refer to paragraph (H) of this rule) shall be
			 equal to zero.
(C) "Barrier beach"
			 means a narrow, elongate sand ridge rising above lake level and extending
			 generally parallel with the mainland shore, but separated from it by a body of
			 water or a wetland.
(D) "Base
			 recession line" means the recession line mapped from synoptic aerial
			 photography, remote sensing imagery, digital data, or maps used to create the
			 recession-line base map upon which coastal erosion areas are designated. The
			 coastal erosion area shall be designated by measuring anticipated recession
			 distances from the base recession line.
(E) "Beach" means A zone of unconsolidated
			 material that extends landward from the shoreline to the toe of the bluff or
			 dune. Where no bluff or dune exists, the landward limit of the beach is either
			 the line of permanent vegetation or the place where there is a marked change in
			 material or physiographic form.
(F) "Bluff" means a bank or cliff with a
			 precipitous, steeply sloped face adjoining a beach or a body of water.
(G) "Bluff line" means the point
			 of inflection where the slope of the upland surface changes to begin its
			 descent to the beach or shoreline.
(H) "Calculated accuracy limit" means the
			 potential error in recession rate resulting from the limit of image resolution
			 and measurement inaccuracies and shall be calculated by dividing a fixed error
			 of five feet by the time period in years over which the annual recession rate
			 is calculated.
(I) "Coastal
			 erosion area" means those land areas along lake Erie anticipated to be lost due
			 to lake Erie-related erosion within a thirty-year period if no additional
			 approved erosion control measures are completed within that time. These areas
			 include land lakeward of the base recession line where anticipated recession
			 distances are greater than zero and extend landward from the base recession
			 line for a distance equal to the anticipated recession distance. Where
			 anticipated recession distances are equal to zero, coastal erosion areas shall
			 not be designated either lakeward or landward of the base recession line.
(J) "Dike" means any artificial
			 barrier together with appurtenant works that shall be used either TO:
(1) Divert or restrain the flow of a stream
			 or other body of water for the purpose of protecting an area from inundation by
			 flood waters; or
(2) Maintain
			 water levels in the diked area for the purposes of managing a wetland.