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15 0 <br /> ISO INTRODUCTION <br /> This Technical Addendum to the existing Management Plan for the IR- 14 Dredged Material <br /> Management Area (Taylor et al , May 1999) presents preliminary design revisions and operational <br /> guidelines for the proposed weir system at FIND Site JR- 14 in Indian River County . It also presents <br /> additional operational requirements contained in recently adopted Draft Environmental Resource Permit <br /> (ERP) review criteria for dredged material containment facilities first proposed by the Florida Department <br /> of Environmental Protection (FDEP) . The Florida Inland Navigation District (FIND), local sponsor of the <br /> Intracoastal Waterway (1CMrW) and owner of Site IR- 14, contracted Taylor Engineering to develop this <br /> addendum to improve weir performance and establish operational constraints on the dredging contractors ' <br /> use of all FIND dredged material placement sites. No schedule has been set for the final design and <br /> construction of the IR- 14 facility. The design revisions and operational guidelines this addendum presents <br /> assume that the IR44 facility 's final design and construction — in particular, the final design and <br /> construction of its weir structure ---- remains consistent with its preliminary design first presented in the <br /> site ' s Management Plan. <br /> The FIND intends that both the site' s earlier Management Plan and the present addendum to that <br /> plan be included as part of the bid package for the next dredging contract for maintenance of the ICWW, <br /> Indian River County Reach III, not yet scheduled. The FIND also intends that both documents form <br /> attachments to the contract for these dredging services . In all cases where the present Technical <br /> Addendum conflicts with the earlier Management Plan, the Technical Addendum shall take precedence. <br /> All design elements presented in these documents, including the weir design modifications <br /> described in Chapter 2.0 of the present addendum, represent conceptual preliminary designs only. During <br /> the project ' s Final Design Phase, it will remain the responsibility of the project 's Engineer of Record to <br /> fully design and specify each of these conceptual designs elements for inclusion in the project's Final <br /> Design and Construction Drawings and Technical Specifications . <br /> Throughout, this Technical Appendix references the need for the Project Engineer to review and <br /> approve contractor submittals. In each case, the Project Engineer refers to an authorized representative of <br /> the contracting entity (USACE or the FIND) that assumes overall project responsibility for the dredging <br /> project by authorizing and/or approving the project ' s final design, advertising the project for bid, selecting <br /> the contractor, awarding the contract , administering the contract, and providing construction observation <br />