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13 <br /> Exhibit 1 <br /> Within the Everett Marina, limited opportunities exist to enhance the eastern <br /> and southern shorelines by resloping existing riprap to create benches upon <br /> which salt marsh vegetation may be encouraged. <br /> (2) Schedule: The Port's North Marina Redevelopment and 12th Street Marina <br /> projects are in the permitting process. No schedule exists for other projects in <br /> this area. <br /> (3) Costs/Funding Sources: The costs of individual projects will be born by the <br /> Port as part of the cost of redevelopment of adjacent properties. <br /> (4) Habitat Function Benchmark Gain: Potential habitat gains in this area are <br /> small. For a typical reach of shoreline along the lower Snohomish Channel <br /> that is riprapped at approximately 2H:1V slope, cutting back to a slope of <br /> flatter than 5H:1V and planting of a saltmarsh bench near the MHHW line <br /> could increase the function by approximately 25 percent, however, the areas <br /> where such changes can be implemented are limited by adjacent land uses. <br /> (5) Mechanisms to insure implementation and to measure effectiveness: <br /> Monitoring, and adaptive management would be required as part of any permit <br /> requirement. <br /> e. Jetty Island <br /> (1) Project Description: Jetty Island was formed between 1900 and 1970 by the <br /> disposal of dredged sands from the Snohomish navigation channel. The Port <br /> owns the island. The shoreline of the lower Snohomish River along Jetty <br /> Island, because it is sheltered by the island, is a fine silty sand at mid to upper <br /> intertidal elevations and mud at lower elevations. Areas along the inside of <br /> Jetty Island (EMU 5) have historically been used for log raft storage, with <br /> rafts grounding on the sand and mudflats and low tides. The west side of the <br /> island (EMU 4) is exposed to considerable wave action from Port Susan and <br /> Saratoga Passage and thus is medium to fine sand; the north end of the island <br /> appears to be accreting sands from the Snohomish River while the middle and <br /> south end appear to be losing sediment. <br /> In 1990, as a demonstration of a beneficial use of dredged materials, the Port <br /> and the Corps of Engineers constructed a berm on the west side of the island <br /> across the intertidal to shelter an embayment of about 19 acres from wave <br /> action. A 5-year monitoring program conducted by the Port showed that this <br /> project met all of its ecological goals and resulting in a substantial net increase <br /> in salmon habitat function. The project has since been renourished on three <br /> occasions to maintain habitat benefits created. <br /> 137 <br /> Section 3 General Goals, Objectives,Policies and Regulations Page 3-67 <br />