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2018-272
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Last modified
1/4/2021 2:56:26 PM
Creation date
12/7/2018 1:47:51 PM
Metadata
Fields
Template:
Official Documents
Official Document Type
Work Order
Approved Date
12/04/2018
Control Number
2018-272
Agenda Item Number
8.L.
Entity Name
Stantec Consulting Services
Subject
Beach Preservation Plan 2019 Update
Alternate Name
Work Order No. 1
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November 15, 2018 <br />Page 2 of 7 <br />hardbottom on the depth of closure will be discussed. The erosion analysis shall include all <br />survey data from 2005 to the most recent data available, and report shoreline change (at <br />0 ft, 5 ft, and 10 ft elevation) and volumetric change (to an agreed upon depth). The report <br />will include a tabular and graphic (bar graphs similar to previous BPP updates) presentation <br />of the data for each R -monument in the County. Background erosion rates will be reported <br />for each sector in shoreline and volume change rates per year. <br />Stantec will also evaluate the impact of the recent hurricane events (from 2013 to 2018). <br />We will examine recovery of the beach with respect to the shoreline and various dune <br />elevations to determine whether natural recovery can be expected under future storm <br />events and to what extent. Stantec will document any recent beach restoration projects <br />from 2013 through 2019, if completed with available data. Stantec will also analyze <br />seasonality through recent survey data collected by the County during the summer/winter <br />time periods. <br />Task 2: Meetings/BCC Updates <br />Following completion of the draft BPP update, Stantec will present to the IRC advisory <br />committee to explain the goals and objectives of update and to gain input from <br />stakeholders, as deemed necessary. Stantec will prepare for and travel to two (2) advisory <br />meetings, at the request of the County, to provide updates at the draft report and final <br />report milestones. Stantec will be actively engaged with County staff during the project <br />duration by providing periodic updates to discuss the analysis as the BPP update <br />progresses. Should additional presentations to the BCC or advisory committee be <br />requested by the County, Stantec can accommodate these requests in writing with the <br />authorization of an additional approved scope/fee. <br />Task 3: Sector Boundaries <br />Based on the results, Stantec will review the boundaries of the various Sectors (1 through 8) <br />within the County. The delineation of these sectors will be evaluated with respect to <br />dominant coastal processes, beach nourishment events, historical shoreline/volume <br />changes, upland development, and environmental resources. The boundaries will be left <br />as is for consistency purposes, unless there is a significant need to change them, such as <br />an overlap for beach nourishment events (i.e. the southern 2,000 ft. of Sector 4 within Sector <br />5). <br />Task 4: Sand Resources <br />Stantec will analyze recently available data to discuss the viability and status of the <br />offshore borrow areas and upland sources for future sand by-passing, beach restoration, <br />and dune maintenance events. Stantec will provide an update assessment of sand <br />locations and quantities. This will include a map of each location, distances to project <br />locations, estimate of the quality/quantity and a cost estimate of the sand resource. This <br />
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