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Figure 2. Natural Escarpment Bluff and Bluff Impact Zone <br />i'— <br />Bluff and Bluff Impact Zone <br />20ft <br />- Structure setback <br />40-100ft <br />Top of Bluff <br />or Bluffline <br />Bluff Impact Zone <br />20ft <br />L <br />o75 <br />degrees <br />>10 ft <br />Toe of Bluff <br />or OHWL <br />Bluff <br />1 <br />2 <br />3 Bluff impact zone. A bluff and land located within 20 feet of the bluff. See Figures 1 and 2. <br />4 <br />O , rf impact Zone <br />Toy of f <br />Top of Bluff <br />Ot <br />l <br />5 <br />6 <br />7 Bluffline. A line delineating the top of the bluff. More than one bluffline may be encountered proceeding <br />8 landward from the river. See Figures 1 and 2. <br />9 Bluff, toe of. A line along the bottom of a bluff, requiring field verification, such that the slope above the <br />10 line exceeds 18 percent and the slope below the line is 18 percent or less, measured over a <br />11 horizontal distance of 25 feet. See Figures 1 and 2. <br />12 Bluff, top of. A line along the top of a bluff, requiring field verification, such that the slope below the line <br />13 exceeds 18 percent and the slope above the line is 18 percent or less, measured over a horizontal <br />14 distance of 25 feet. See Figures 1 and 2. <br />15 Boathouse means a structure designed or used solely for the storage of boats or boating equipment. <br />16 Boulevard means that part of the property not covered by sidewalk or other paving, lying between the <br />17 property line and the curb line of any street. In the absence of a curb, the curb line of a street shall <br />18 be deemed to be the edge of that portion of the public right-of-way maintained and open to the <br />19 use of the public for purposes of public travel. <br />20 Brewpub means a business operating as defined and regulated by Minn. Stats. Chapter 340A. <br />21 Buildable area. The area upon which structures may be placed on a lot or parcel of land and excludes <br />22 areas needed to meet requirements for setback, rights -of -way, bluff impact zones, historic <br />6 <br />