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  • 2024 SF NAP JPG 1
    2026-04-21

    2024 South Flow Noise Abatement Procedures graphic

    An aviation chart showing noise abatement procedures for south flow operations for Sea-Tac Airport, depicting aircraft flight paths, arrival and departure corridors, and specific locations including the 520 bridge area. The chart includes reference points at 5 nautical miles and 3,000 feet altitude.

  • Flight Track Density

  • Everything you ever wanted to know about Flight Paths

    You can think of any major airport as the most extravagant short-term parking lot imaginable, with an equally extravagant quickie-mart. Both are connected to a 1super-highway. But instead of one on and off ramp, there are many known as Standard Instrument Departures (SIDs) and Standard Terminal Arrival Routes (STARs). SIDs are the flight procedures that
  • 2026 04 21 at 11 18 29 Ejscreen
    2026-02-19

    When Federal environmental maps go dark

    The benefits and consequences for airport communities In January 2025, the Trump administration began removing content from federal websites following Executive Order 14151. The order directed all government agencies to terminate DEI and environmental justice–related programs. These include environmental justice and climate mapping using a nationally consistent dataset for evaluating the socioeconomic impacts of airports.
  • Ejscreen

    EJScreen Environmental Justice Screening and Mapping Tool (Version 2.3)

    This is an 1unofficial copy of EJScreen hosted by the Public Environmental Data Partners. Some links and text may incorrectly suggest that this site is affiliated with the US Government. The EJScreen Tool was an EPA web application taken down in January of 2025 as part of Executive Order 14151. It was described as “an

  • Port Properties and Trees mapped

    Properties, trees and the environment around the airport As the icon indicates, this is a beta project, one of a series of visual representations on community impacts. This indicates Port-owned properties around the airport, most purchased with FAA grants. It also displays the status of trees that are subject to removal and/or replacement via the

  • Noise Events mapped

    Visualizing flights over the 24 Permanent Noise Monitors The 2032 boundary is not finalized and subject to frequent change! Based on a presentation of the possible 2032 boundary by the Technical Review Committee of the current Part 150

  • Port Packages mapped

    Structures with Port of Seattle avigation easements Background When the Port of Seattle conducted their initial Part 150 Study in 1985, there were at least 11,000 structures inside the eligible boundary area. Since then, it has conducted four more, including the current one. Since then, the boundary, and the structures included within those boundaries, have

  • Seattle-Tacoma-SEA-Overview Map

  • 2024-04-05

    Deciphering the FAA’s wildly complex aviation maps

    Among all of the visual information published by the U.S. government, there may be no product with a higher information density than the Federal Aviation Administration’s (FAA) aviation maps. Intended for pilots, the FAA publishes free detailed maps of the entire U.S. airspace, and detailed maps of airports and their surroundings and updates them frequently. The density