TagEnvironmental Review(48)
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2024-09-20SEA Airport’s Sustainable Airport Master Plan (SAMP) Frequently Asked Questions
The Port of Seattle's Sustainable Airport Master Plan (SAMP) outlines 31 near-term construction projects at Seattle-Tacoma International Airport, including a second terminal with 19 gates, new cargo facilities, and roadway changes, all aimed at serving up to 56 million passengers annually by 2050. A federal environmental review (NEPA) is underway to assess potential impacts, with a 45-day public comment period opening October 21, 2024, allowing community members to submit feedback online, by mail, or at public libraries in Burien, Des Moines, and SeaTac. A separate state-level environmental review (SEPA) will follow once the federal process is complete. -
2024-09-20Sustainable Airport Master Plan: Environmental Review and Airport Master Plan Fact Sheet
Seattle-Tacoma International Airport's Sustainable Airport Master Plan (SAMP), completed in 2018, outlines 31 near-term development projects and is currently undergoing a federal environmental review (NEPA) process, with a draft Environmental Assessment published in October 2024. The review evaluates potential impacts on air quality, water resources, noise, and other environmental factors before any projects move forward. Once the federal NEPA process concludes, a Washington State-level environmental review (SEPA) will follow. -
2024-09-09SAMP NTP Environmental Review: Affected Environment — Surface Transportation Existing Conditions Report
This report analyzes existing traffic conditions around Seattle-Tacoma International Airport as part of the Sustainable Airport Master Plan (SAMP) Near-Term Projects Environmental Review. It examines 108 intersections—including 63 signalized, 41 stop-controlled, and 4 uncontrolled—along key routes connecting the airport to surrounding communities, focusing on the weekday PM peak hour (4–6 p.m.). Freeway segments of SR 518 and I-5 were also evaluated at WSDOT's request to provide a comprehensive picture of surface transportation conditions in the airport study area. -
2024-05-22Highline Forum SAMP NTP Environmental Review Overview — Slide 4 (May 2024)
A presentation slide titled 'Environmental review analysis based on constrained growth scenarios' shows a line chart comparing historical operations data (2011–2020), a 2022 unconstrained forecast, and two constrained growth scenarios—No Action and Proposed Action—projected through 2037. The Proposed Action constrained scenario reaches approximately 515,000 operations by 2037, while the No Action constrained scenario plateaus near 480,000, both falling well below the unconstrained 2022 forecast of approximately 560,000. -
2024-05-22Highline Forum SAMP NTP Environmental Review Overview — Slide 5 (May 22, 2024)
This presentation slide lists the NEPA resource categories that will be covered in an environmental review document, including Air Quality, Biological Resources, Climate, Coastal Resources, DOT Section 4(f), Farmlands, Hazardous Materials, Land Use, Historical/Cultural Resources, Noise and Noise-Compatible Land Use, Socioeconomics/Environmental Justice, Visual Effects, and Water Resources. A footer note states that the FAA is the lead agency for NEPA and that the document will cover an extensive set of resource categories; this is slide 5 of the presentation. -
2024-05-22Sustainable Airport Master Plan Near-Term Projects Environmental Review
The Port of Seattle presented an environmental review of near-term construction projects at Seattle-Tacoma International Airport as part of its Sustainable Airport Master Plan. The projects include expanding passenger terminals and gates to handle a projected 56 million annual passengers, adding cargo and fuel storage facilities, and upgrading airfield infrastructure to meet current FAA safety standards. The review was presented to the Highline Forum in May 2024 by Senior Environmental Program Manager Steve Rybolt. -
2024-05-22SAMP NTP Environmental Review Overview — Aircraft Operations Forecast Chart (Page 4), May 2024
A line graph comparing historical aircraft operations data (2011–2022) with forecast scenarios through 2037, including an unconstrained 2022 forecast, a No Action constrained scenario, and a Proposed Action constrained scenario. The chart shows operations declining sharply in 2020 (likely due to COVID-19) and recovering, with the Proposed Action scenario reaching approximately 520,000 operations and the No Action scenario capping near 485,000 operations by 2037. -
2024-05-22SAMP Near-Term Projects Environmental Review Overview — Highline Forum, May 22, 2024 (Page 1)
Title slide for a Port of Seattle presentation on the Sustainable Airport Master Plan Near-Term Projects Environmental Review, delivered by Steve Rybolt, Senior Environmental Program Manager, at the Highline Forum on May 22, 2024. -
2024-05-22SAMP Environmental Review — Near-Term Capital Projects Aerial Map (Page 3)
This aerial map, from the Seattle-Tacoma International Airport Sustainable Airport Master Plan (SAMP) Environmental Review prepared by the Port of Seattle and LPA Group, depicts near-term capital projects across the airport campus. Projects are color-coded by category including Second Terminal Projects (blue), Cargo Expansion Projects (tan/gold), Airfield Operational Projects (yellow), Airfield Safety/Standards Projects (red), and Sustainable Aviation Fuel Projects (green), with individual project codes labeled (e.g., A01–A09, S01–S10, C01–C03, L01–L07, T01–T02). -
2024-05-22Highline Forum SAMP NTP Environmental Review Overview — SEPA Elements of the Environment, Slide 6 (May 2024)
A presentation slide titled 'SEPA Elements of the Environment' listing the environmental review categories required under Washington State's State Environmental Policy Act (SEPA), including Earth, Air, Water, Plants and Animals, Energy, Environmental Health, Land and Shoreline Use, Transportation, Public Services and Utilities, and Sewer/Solid Waste. A footer note states: 'Port is the lead agency for the SEPA and the document will cover an extensive set of environmental elements,' indicating this is part of a Port (likely Port of Seattle/Sea-Tac) environmental review presentation, slide 6.