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2. Marinas, boat rentals, docks, piers, wharves, and water control structures. <br /> 3. Railroads, streets, bridges, utility transmission lines, and pipelines. <br /> 4. Storage yards for equipment, machinery, or materials. <br /> 5. Placement of fill or construction of fences. <br /> 6. Structural works for flood control such as levees, dikes and floodwalls constructed to any height <br /> where the intent is to protect individual structures and levees or dikes where the intent is to protect <br /> agricultural crops for a frequency flood event equal to or less than the 10-year frequency flood <br /> event. <br /> 7. All other forms of shoreline protection, including wood, metal mortared stone or concrete <br /> seawalls. <br /> 8. All permanent boat docks or other similar structures. <br /> Sec.78-1117.-Standards for floodway conditional uses. <br /> (a) All uses. No structure (temporary or permanent), fill (including fill for roads and levees), deposit, <br /> obstruction, storage of materials or equipment, or other uses may be allowed as a conditional use that <br /> will cause any increase in the stage of the 100-year or regional flood or cause an increase in flood <br /> damages in the reach or reaches affected. <br /> (b) All floodway conditional uses shall be subject to the procedures and standards contained in section <br /> 78-1135 of this article. <br /> (c) The conditional use shall be permissible in the underlying zoning district if one exists. <br /> (d) FitL <br /> 1. Fill, dredge spoil, and all other similar materials, if approved to be deposited or stored, deposited <br /> or stored in the flood plain shall be no more than the minimal amount necessary to conduct a <br /> conditional use. The fill, dredge spoil, and all other similar materials deposited or stored in the <br /> flood plain shall be protected from erosion by vegetative cover, mulching, riprap or other <br /> acceptable method. <br /> 2. Dredge spoil sites and sand and gravel operations shall not be allowed in the floodway unless a <br /> long-term site development plan is submitted which includes an erosion/sedimentation prevention <br /> element to the plan. <br /> 3. As an alternative, and consistent with subsection(d)(2)immediately above, dredge spoil disposal <br /> and sand and gravel operations may allow temporary, on-site storage of fill or other materials <br /> which would have caused an increase to the stage of the 100-year or regional flood but only after <br /> the governing body has received an appropriate plan which assures the removal of the materials <br /> from the floodway based upon the flood warning time available. The conditional use permit must <br /> be title registered with the property in the office of the county recorder. <br /> 4. All filling and grading activities shall be performed with only clean fill. <br /> (e) Accessory structures: <br /> 1. Accessory structures shall not be designed for human habitation. <br /> 2. Accessory structures, if permitted, shall be constructed and placed on the building site so as to <br /> offer the minimum obstruction to the flow of flood waters: <br /> a. Whenever possible, structures shall be constructed with the longitudinal axis parallel to the <br /> direction of flood flow; and <br /> b. So far as practicable, structures shall be placed approximately on the same flood flow lines <br /> as those of adjoining structures. <br /> Page 6 <br />