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Work Order No. 4 Dune Crossover Replacement for Two Structures and Dune Ramp Repair at the Tracking Station Beach Access Task 1b — Survey A topographic survey of the existing conditions is required by the County and the DEP. CONSULTANT will obtain a topographic survey of the beach and dune that meets the DEP requirements and provides a basis for the cross-section design template for permitting and construction documents. CONSULTANT professional land surveying subconsultant will perform a topographic survey of the Project area including establishment of a baseline. The survey will; define park features including parking, buildings, amenities, define the upland and seaward extent of dune vegetation; identify the top of dune, toe of dune, and crest width of the dune. The survey will consist of at least one beach profile as required by FDEP Permit Rules, including elevations recorded at least every 25 feet on center and at any break in slope. The profiles shall extend from the approximate landward toe of dune, or approximately 20 feet landward of the seaward dune crest, to the zero -contour line. Plan view and cross-sectional drawings of the survey results will be prepared by CONSULTANT which shall serve as the basis of design and permitting for the Project. CONSULTANT shall subcontract a portion of this work to a registered Florida licensed surveyor. Task 2 — Preliminary and Final Design CONSULTANT will prepare preliminary and final design drawings for the proposed project that will consist of a dune crossover structure meeting the design criteria established in the conceptual design task of this scope of work. For each phase, CONSULTANT will provide an opinion of probable costs and meet with the COUNTY to review the design. Final design shall include signed and sealed construction plans and specifications suitable for bidding and construction of the project. CONSULTANT will prepare a preliminary design to be submitted with the permit application and subsequently used to prepare 24" x 36" construction drawings for bidding purposes. The preliminary design will utilize the conceptual design sketches and will be updated with information from the pre -application meeting and our meeting with the COUNTY. Final design drawing updates will be completed after receipt of the permit, as necessary, and shall include signed and sealed construction plans and specifications. For each phase, CONSULTANT will provide an updated opinion of probable costs and meet with the COUNTY to review the design. Page 3 of 7