Below are the six Port of Seattle areas where invasive species, tree removal, site preparation and replanting work is nearly complete. Click on the site title bars below to learn more about each site’s environmental characteristics and the number of trees removed and replanted. The Port replanted more than four times as many trees and shrubs as it removed and is on the second year of monitoring the success of its new plantings.
Work on sites P-1, P-2, P-3 and P-6 was completed in the fall of 2017. For sites P-4 and P-5, the Port Commission called for more community engagement before determining the removal and replanting approach. Why? Most over-height conifers were located within those sites, and both sites are also adjacent to residential properties. Using input submitted at a community workshop and through an online open house, the Port developed a preferred approach for sites P-4 and P-5 that reflected the community’s feedback. The approach called for removing only existing obstructions, restoring the sites with a low-growing forest and planting an additional 3.5 acre off-site location with tall-growing native conifers south of sites P-4 and P-5 where the conifers would not become future obstructions. The off-site location included removing substantial invasive species cover and is located adjacent to a residential area where the restoration provides a visual aesthetic.
Please note: On Site P-5, six trees have penetrated the airport’s airspace since the work concluded and will be removed in 2020/2021. Visit the Other Public Property tab for the locations of the six trees.
Trees removed on Port property
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Obstructions removed on Port property
Port of Seattle ownership
WSDOT SR 509 right of way
City of Burien
City of Des Moines
City of SeaTac