TagSustainable Airport Master Plan(237)

The cities of Burien, Des Moines, and SeaTac have jointly hired the law firm Leech Tishman Fuscaldo & Lampl to challenge the Federal Aviation Administration's approval of the Port of Seattle's Sustainable Airport Master Plan (SAMP). The firm will file a Petition for Review in the U.S. Court of Appeals for the Ninth Circuit, naming the FAA as the respondent. Under the agreement, SeaTac will receive and pay all legal invoices on behalf of the three cities, with legal fees starting with a $10,000 retainer and billed at $540 per hour for the lead attorney.

Port of Seattle presentation updating on the FAA’s completion of NEPA Environmental Assessment for 31 proposed SAMP projects, finding no significant environmental impact. Covers regional growth driving air travel demand, project details, and next steps including Port-led environmental review and public engagement.

This traffic engineering report analyzes three signalized intersections along S 128th Street near SR 509 in the Sea-Tac area under projected 2032 No Action conditions during the PM peak hour. The study finds that the SR 509 ramp intersections are operating well over capacity, with an Intersection Capacity Utilization of 104.6% and an ICU Level of Service G, while the Des Moines Way S intersection operates more acceptably at 63.3% ICU. Overall intersection control delays range from approximately 19 to 27 seconds, with most approaches functioning at Level of Service B or C.

The Bonneville Power Administration's 2018–2023 Strategic Plan Progress Update outlines the agency's efforts to improve its financial health, modernize its power grid assets, and better serve customers across the Pacific Northwest. The plan identifies five strategic goals, including strengthening financial performance, providing competitive power products, and valuing its workforce. This update, issued nearly three years after the original 2018 plan, documents accomplishments and highlights areas needing further attention.

The 1997 Sea-Tac International Airport Impact Mitigation Study is an initial assessment and recommendations report prepared for several cities near Seattle-Tacoma International Airport, including Burien, Des Moines, Federal Way, Normandy Park, and Tukwila, as well as the Highline School District and Highline Community Hospital. Funded by a State of Washington grant, the study was conducted by Hellmuth, Obata + Kassabaum, Inc. and Raytheon Infrastructure Services, Inc. to evaluate the airport's impacts on surrounding communities. The report was submitted as part of public engagement materials related to ongoing concerns about airport noise and air pollution affecting nearby residents and institutions.

Appendix O of the Sustainable Airport Master Plan (SAMP) Environmental Assessment documents how the FAA engaged the public and agencies during the NEPA review process for Sea-Tac Airport, including public meetings, briefings, and outreach to communities, elected officials, and underrepresented groups. The summary notes that several Executive Orders and CEQ regulations referenced during the Draft EA have since been revoked, and that the FAA's final decision will rely on updated federal guidance including FAA Order 1050.1F and Executive Order 14154. Public comments received and submitted studies are also included as part of this appendix.

Appendix K of this environmental review examines socioeconomic conditions, environmental justice, and children's health and safety risks in the area surrounding the proposed project. It finds that 23.3% of the population in the study area is under 18—higher than both King County and statewide averages—and identifies two schools within the project boundary that could expose children to environmental health risks. The appendix also includes an economic impact analysis for the Northwest Seaport Alliance and a separate environmental justice memorandum prepared under Washington State's environmental review process.