Aerial map produced by PORTfolio showing the Auburn Wetlands Multi-Site Mitigation Bank near Auburn, WA, identifying three project components: a New Mitigation Bank Site (34 acres), the Third Runway Mitigation Site (65 acres), and a New Off-Channel Fish Access Area (11 acres), collectively labeled as Umbrella Bank Project Sites. The imagery is consistent with Sea-Tac Airport third-runway wetland mitigation planning materials.
2026-07-31
A map showing potential mitigation sites and existing Port of Seattle habitat sites in the greater Seattle area, including Terminal 25, Terminal 117, and the Auburn Site. The map covers cities including Seattle, Burien, Tukwila, SeaTac, Des Moines, Federal Way, Kent, Renton, and Auburn. Sites are categorized by land use type including storage, vacant, and
Environmental mitigation at its best and worst To build the Third Runway, the Port of Seattle proposed to fill all or parts of some 12 separate wetlands across the Miller Creek, Walker Creek, and Des Moines Creek watersheds–every one of them a class AA water, the highest protection provided by the state. FAA grants are
2026-07-30
A wooden boardwalk trail extends through a lush wetland area with tall grasses and willows under a clear blue sky. A brown trail marker post is visible on the left with multiple destination listings including references to a Birding Tower, Willow Grove, and a Main Trailhead, consistent with a nature preserve or wildlife refuge trail system.
2026-07-30
An outdoor interpretive sign titled 'Hydroworks and Habitat: Keeping It Clean' with a section labeled 'Water's Coming & Going,' featuring a map of the Green/Duwamish River Watershed. The weathered sign is located along a trail near a wetland or riparian area associated with the Green/Duwamish River system.