TagAuburn Wetland(3)

Sandra Kilroy, Director Maritime Environment and Sustainability AAPA Environment Committee November 6, 2019 Port is in unique position • Ownership of extensive shoreline in critical areas for listed species • Provide compensatory mitigation • Promotes climate adaptation & resilience • Generate revenue (mitigation banking) • Maintain social license to operate • 31 habitat sites, 21 parks, 15.4 miles of shoreline • Compensatory mitigation sites (12 acres) • Community stewardship sites (18 acres) • Multi-site mitigation bank (~75 acres) • Alternative Bankline Stabilization Program • Innovation (R&D) – Smith Cove Blue Carbon Pilot Project – Floating Wetland Islands (aka Bio-Barges) – Underwater Noise Reduction Seattle +12’ MLLW +16’ MLLW Alternative Shoreline Stabilization Program Removed structures/fill +20’ MLLW Alternative Bankline Stabilization: T-108 Pre-Project Alternative Bankline Stabilization: YEAR 1 YEAR 3 Mitigation Bank • Prospectus submitted May 2019 • Main sites @ Terminal 117, Terminal 25, Auburn • Marine, estuarine and freshwater habitat • Service area = Green-Duwamish Watershed • Mitigation market: – Wetland/stream (Section 404, Clean Water Act) – Listed species (Endangered Species Act) – Natural Resource Damages (CERCLA) – Floodplain storage (Municipal codes/FEMA) – Carbon? Mitigation Bank (cont.) • Derelict structure removal: • Terminal 5 • Pier 34 • Pier 16 • Pier 48 (w/ Washington State Ferries) • Other restoration projects • Terminal 115 • Terminal 108 • Terminal 107 • Terminal 105 Third Runway Mitigation Site (65 acres) New Mitigation Bank Site (34 acres) Multi-Site Mitigation Bank: Auburn Wetlands New Off- Channel Fish Access Area (11 acres) Multi-Site Mitigation…

Auburn Wetland Mitigation Site – Planned Road Removal Auburn Wetland Mitigation Site – Existing Road and Path Condition Temporary Road Temporary Path Auburn Wetland Mitigation Site – Emergent Pond – Fall 2015 Auburn Wetland Mitigation Site – Observed Wildlife Pacific Tree Frog Great Blue Heron Northwestern Salamander Shrew Mole Mallard Ducks

Auburn City Council Minutes describing Port wetlands swap for Third Runway by Barbara Hinkle