Watershed Management Plan - Mason County

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Appendix D Key Issues and Options – Habitat and other fish species provides an excellent opportunity to maintain good riparian areas and restore degraded areas. Restoration activities could involve removal of dikes and culverts, planting vegetation, or increasing slope stabilization. The Salmon Recovery Funding Board administers funding for salmon recovery activities, including habitat restoration and acquisition of property. Funding is available to tribal, state, and local government agencies, as well as non profit organizations and private landholders. The Planning Unit could support efforts to identify ideal properties in WRIA 16 for habitat restoration and encourage eligible groups to purchase and restore the properties to support salmon habitat. One approach to habitat and open space protection that may serve as a model for Hood Canal is the Cascade Agenda (www.cascadeagenda.org). Issue: Floodplain Connectivity, Riparian Degradation, and Channel Complexity Floodplain connectivity, channel complexity, and riparian conditions have all been degraded by development. In particular, diking, bank armoring, and highway construction have removed streamside habitat and blocked access to side-channels. Riparian areas have been developed for residential or agricultural use, thereby removing vegetation that helped control runoff and sedimentation, provided a source of large woody debris, provided habitat for terrestrial animals, and naturally protected streambanks from erosion. As discussed above, the WRIA 16 Planning Unit recognizes that other planning efforts are addressing habitat, including issues related to development, and does not intend to duplicate those efforts. Nevertheless, following are a few options that could be pursued in WRIA 16 to advance salmon recovery progress in the watershed. Option 73. Encourage salmon habitat recovery efforts to address floodplain connectivity, riparian degradation, and channel complexity. Several entities are implementing recovery plans for salmon and other fish in the region. The Planning Unit could request that these other efforts focus attention on maintaining good riparian areas, restoring degraded areas, and protect streamside forests and vegetation in riparian areas. Option 74. Revise the critical areas ordinances in Mason and Jefferson Counties to support habitat Critical Areas Ordinances are a set of development regulations designed to protect particularly sensitive areas such as wetlands, stream corridors, fish and wildlife habitat, areas that recharge groundwater sources used for drinking water, frequently flooded areas, and geological hazards (such as page 134 Final Plan for County Adoption – May 11, 2006
Key Issues and Options – Habitat Appendix D steep slopes). Every county and city in Washington is required to adopt Critical Areas Ordinances (CAO) according to the Growth Management Act (RCW 36.70A.060), and they are required to use best available science in developing policies and development regulations to protect the functions and values of critical areas (RCW 36.70A.172). All jurisdictions are required to review, evaluate, and, if necessary, revise their critical areas ordinances according to a fixed schedule: Mason County must update its CAO by December 1, 2006; Jefferson County was required to update its CAO by December 1, 2004. The Planning Unit could recommend that Mason and Jefferson counties review, assess, and potentially revise their CAOs to: • Provide adequate buffers, or set-backs – buffer set backs restrict how closely development can be to designated critical areas; Mason county and the Planning Unit could review whether the CAO provides big enough setbacks and whether the quality of the buffer is sufficient to protect the critical area; • Ensure that developments are in compliance with their habitat management plans. The width of buffer set-backs may be decreased if a biologist completes a habitat management plan demonstrating that the development would not harm the stream, but compliance with these plans could be assessed to ensure they are adequately protecting habitat; • Provide better stormwater treatment and controls, which may be necessary to adequately prevent and treat stormwater runoff, a key contributor to water quality issues, particularly in the nearshore environment; and • Maintain undeveloped drift cells – a drift cell is a particular reach of marine shore where nearshore sediment processes are not significantly interrupted; undeveloped drift cells are important for habitat. Mason County could conduct this work as part of its 2006 update process. Jefferson County will not have to update its CAO for several years, but could submit revisions in advance of the deadline. Issue: Low levels of large woody debris (LWD) in streams Large woody debris (LWD) has been removed from streams and its sources (forested riparian areas) have been reduced. LWD in streams provides direct salmon habitat through shade and protection; LWD also helps form and maintain pools, which provide a refuge from predators and floods for juvenile salmon (WCC, 2003). Final Plan for County Adoption – May 11, 2006 page 135
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WRIA 16 Summary of Watershed Manage
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WRIA 16 Summary of Watershed Manage
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WRIA 16 Watershed Management Plan T
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Chapter Introduction and Background
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Chapter WRIA 16 - State of the Wate
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Watershed Management Plan - Mason County

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