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600K 99 f,, fad 887 a) Protection of Beach and Dune System - The applicants have stated that the "structures are designed to minimize impacts to the beach dune system. " Construction will take place by placing and operating a crane seaward of the wall. Access to the beach will be from private property after approval by the property owner. b) Siting and Design Criteria for the Protective Structure - The applicants have stated that the structures are as far landward as is practicable. A drawing showing wall location was submitted to staff and the FDEP on Nov. 15, 1996. Staff does not concur with the location of the wall along the Bunger property since it is seaward of the alignment already approved by the FDEP. Staff recommends a more landward placement in conformance with the draft DEP permit if an emergency permit is issued. County staff and FDEP staff are of the opinion that the alignment of the wall along the Papin property is reasonable. An alignment between the Bunger and Papin properties should be as landward as reasonable. The sheet pile seawall with a concrete cap and deadmen is adequate structurally as designed by a structural engineer. c) Impacts on Adjacent Properties - The applicants' Coastal Engineer, Coastal _ Technology, Inc. Michael Walther, P.E., has rendered the opinion that there will be no adverse impact on adjacent properties for at least 10 years (see attached report). d) Preservation of Public Beach Access - No seawalls will be built along public access frontage. e) Protection of Native Coastal Vegetation and Nesting Marine Turtles and their Hatchlings." All coastal vegetation disturbed will be restored. As little disturbance to vegetation as possible will occur. No work will be performed during turtle nesting season. In considering the County Code, some of the property owners have nourished and/or planted the coastal dune, but erosion has continued. No other techniques to stabilize the dune have been used, to staffs knowledge. The applicant's attorney has also stated in his Nov. 7, 1996 letter that "the applicants will certainly carefully consider mitigation should that be an issue. RECOMMENDATIONS AND FUNDING Staff recommends that a FS Chapter 161.086 (b) Emergency Permit be issued for the Bunger and Papin properties at this time subject to the following conditions: 1) Seaward of the wall, beach compatible sand is placed to reestablish the beach and dune system. Substantial accretion occurred yesterday which should not be eliminated. 2) The seawall be placed as landward as possible. For the Bunger residence, the permitted D.E.P. alignment is recommended. For the Papin property, a location 15± from the existing house is recommended. 3) Any adverse impacts created by the seawall an adjacent properties be mitigated by sand placement to be determined by staff. 4) All public access shall be retained. 5) The construction shall have minimum impact on native coastal vegetation and any native vegetation removed or damaged will be replaced. No construction -.shall occur during the turtle nesting season. 6) The emergency seawall shall be temporary and shall be removed unless a F.D.E.P. permit for a permanent seawall is acquired. NOVEMBER 19, 1996 30