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Page 2 BCC Agenda Item Sector 5 Beach Restoration Project May 27, 2015 In 1993, a Hardbottom mapping study revealed that the proposed project would impact approximately 56 acres of nearshore reef. Such a great impact to the nearshore reef was unacceptable to County and the project did not continue. In 1999/2000, the project was reauthorized under section 361 of WRDA 1999. Subsequently a Limited Reevaluation Report (LRR) was completed, which reduced the project length from 2.65 to 2.2 miles and anticipated a reduction in nearshore reef impacts from 56 to 16.5 acres. The project benefit-to-cost ratio with the reduction in project length was determined to be 1.4. However, the County did not proceed into the design and construction phase for the identified project. In 2014 the USACE reaffirmed their desire to partner with the County on Sector 5 and subsequently completed a favorable reconnaissance level study recommending moving forward into a feasibility phase and conduct a GRR study. Although the USACE reconnaissance study was 100%federally funded,the projected$3,000,000 feasibility phase is a 50:50 funding commitment between the USACE and the local sponsor (County). In accordance with the agreement, $1,500,000 will be the Federal cost share and the County share will be $1,500,000. However, the County may apply up to $750,000 for in kind contributions (planning, supervision and administration, services, materials, supplies, and other in kind services that are performed or provided by after the effective date of this agreement). The remaining $750,000 will be the County required contribution of funds. Proposed Sector 5 Study—General Reevaluation Report (GRR) The proposed study would be in the form a GRR. The goal of the GRR is to increase shore protection of the Sector 5 beaches in an environmentally acceptable and economically justified manner. The GRR will evaluate several project alternatives all in an effort to minimize or eliminate negative impacts to the nearshore reef habitat. The GRR will also update the project benefits and costs required for subsequent Federal funding to move the project into the design and construction phases. Based on the current Government directives all GRRs will follow a 3x3x3 rule and will be completed in a target goal of 18 months but no more than three (3) years; cost not greater than $3 Million; and be coordinated among three (3) vertical team levels. The project design and construction phases will require additional funding and planning time above the GRR phase. Proposed Sector 5 Beach Restoration Proiect— 2014 Beach Preservation Plan The Sector 5 project strategy, as identified in the 2014 update to the County Beach Preservation Plan, entails construction of a dune only project by placing approximately 52,000 cubic yards of sand above mean high water. Due to the low fill volume density it is assumed that sand for the project would be obtained from upland sand sources. F:\Public WorksUamesG\Sector 5\Federal\Feasibility Cost Share Agreement\agenda item Department of Army Feasibility Cost Share Agreement--Sector 5 Shore Protection Project--REV 5-27-15.docx 198