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13 <br /> Exhibit 1 <br /> Two types of new projects are possible on the west side of Jetty Island. Either <br /> could be accomplished with hydraulic placement of clean dredged materials <br /> from routine navigation channel maintenance dredging. <br /> • The first type of project would be to expand the existing dune and marsh <br /> habitat southward by placing new dredged sand along the southern portion <br /> of the rock jetty. At present the beach in this area intersects the jetty at <br /> approximately +4 to +6 feet MLLW such that no beach exists at tides <br /> above that level. The benefits of having a complete beach profile, as <br /> occurs along the northern two thirds of the west side of the island could be <br /> gained by this project. <br /> • The second type of project would be to construct a second berm, to create <br /> a second protected embayment on the west side of the island. <br /> (2) Schedule: No schedule exists for either of these projects. Ideally, the beach <br /> construction would occur before the second berm construction so that the <br /> berm could shelter a portion of the new beach. <br /> (3) Costs/Funding Sources: The cost of either of these projects would likely be <br /> borne by the Port and the Corps as cooperating agencies that maintain the <br /> federal navigation channel. <br /> Prospective Funding Sources: Grants and development mitigation are <br /> possibilities for funding sources. The ability to implement this project and the <br /> actual timing of any restoration is contingent on securing funding for this <br /> restoration and/or mitigation. • <br /> (4) Habitat Function Benchmark Gain: In the Salmon Overlay, the habitat <br /> function of the west side of Jetty Island (AU 4.03)was relatively low (20.5 <br /> IVA points per acre) because of the exposed riprap in the southern portion of <br /> the AU. Creating a full beach profile in this region would remove this stressor <br /> and is projected to result in a score of 32.0 IVA points per acre. Given the <br /> substantial size of this AU, this change is projected to produce an increase of <br /> over 2400 IVA acre-points, by far the largest potential functional gain in the <br /> nearshore waters in the City. <br /> Constructing a second berm would increase habitat benefits in part of the area <br /> benefited by new beach construction described above. While the function of <br /> the area sheltered by the berm would be increased because of its change to a <br /> depositional environment and because of the probable development of a <br /> saltmarsh fringe within the sheltered embayment, some function would be lost <br /> in the area of present intertidal sand beach that would be converted to uplands <br /> in the berm. Monitoring of the existing berm demonstrated that the loss of <br /> 138 <br /> Section 3 General Goals,Objectives, Policies and Regulations Page 3-68 <br />