TagDuwamish River(23)

This document is the agenda for a Port of Seattle Regular Commission Meeting held on July 28, 2026, covering routine administrative and operational matters such as approval of meeting minutes, claims and obligations, lease agreements, and custodial services contracts. The meeting agenda does not contain any items specifically related to Sea-Tac Airport noise policy. Notable items include a $150 million authorization for airport custodial services contracts through 2031 and environmental stewardship agreements for the Duwamish Basin.

The Duwamish River Parks Management Strategy, published by the Port of Seattle in October 2024, outlines a community-centered plan for improving and managing parks along the Duwamish River in the Seattle area. The strategy was developed with significant input from local community members and covers priorities such as new amenities, programming, partnerships, and branding to better serve Duwamish Valley residents. It also includes implementation steps and measures of success to guide future decision-making for the parks system.

In the postwar decades, the Port of Seattle planned to transform the upper Duwamish Valley into a massive industrial district by straightening the river and filling its floodplains, a project that would have displaced small valley communities and caused severe environmental damage. The small City of Tukwila successfully fought back through strategic land annexations, restrictive zoning, coalition-building with state agencies, and a landmark lawsuit that challenged the Port's authority to levy a special property tax to fund the project. Tukwila's victory shaped the future of the entire King County region by preserving the valley from large-scale heavy industrialization.