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Aquatic mitigation site
Park resources
Wetland mitigation site
Wetland and aquatic mitigation site

SR 520 - I-5 to Medina Project - Natural Resource and Parks Mitigation

When planning transportation projects, WSDOT first seeks to avoid or minimize adverse effects to the environment. If a project has unavoidable effects, we must mitigate for those effects. To mitigate for effects to parks, wetlands and aquatic resources associated with the I-5 to Medina project, we are proposing mitigation activities at several sites. Additional information about these proposed mitigation activities can be found by clicking on the individual sites shown on the above map.

To identify these mitigation sites, WSDOT has undertaken a comprehensive screening process in coordination with local, state and federal regulatory agencies, stakeholders, and tribes. Opportunities for on-site mitigation have been maximized to the extent possible. However, on-site mitigation is limited by existing land use, high density development surrounding the project area, and overall insufficient area available for mitigation. WSDOT will restore construction-related impacts on-site. For any remaining unavoidable temporary or permanent impacts, WSDOT will also conduct mitigation at off-site locations.

Additional information on the natural resources mitigation planning process and proposed wetland and aquatic mitigation sites can be found in the Wetland Mitigation Plan and Aquatic Mitigation Plan.