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  • 1997-06-01

    Symonds Stormwater System June 1997

    Engineering drawing prepared by Symonds Consulting Engineers for the Port of Seattle, titled 'Comprehensive Storm Drainage System Plan and Design – Storm Water Conveyance System, June 1997 Planned Conditions' (Drawing No. C-3258, Project No. 94066). The plan depicts SeaTac International Airport's stormwater drainage basins, outfall locations (Outfalls 002–016), storm flow monitoring locations, and drainage connections to Des Moines Creek and its east tributary.
  • 1994-01-01

    Metropolitan King County Council Districts Map, King County 1994

    This 1994 map from the Seattle Public Library shows the Metropolitan King County Council Districts, dividing King County, Washington into 13 districts. It lists each district's elected councilmember and contact phone number, with the council headquartered at Room 1200, King County Courthouse, 516 Third Avenue, Seattle. While primarily a political boundary reference document, it provides geographic and governance context for the King County region surrounding Sea-Tac Airport.
  • 1993-04-15

    1991 Sea-Tac Part 150 Noise Exposure Map NEM

    This is the official 1991 Existing Noise Exposure Map for Seattle-Tacoma International Airport, submitted in accordance with F.A.R. Part 150, signed by R. Bun Stewart, Director of Aviation Planning, Port of Seattle, on April 15, 1993. The map depicts Ldn noise contours (65, 70, and 75) over the surrounding communities including Seattle, Tukwila, SeaTac, Normandy Park, Burien, Kent, and Federal Way, with the Ldn 65 contour encompassing approximately 14,128 acres and 67,000 people.
  • 1993-04-15

    FAR Part 150 1991 Existing Noise Exposure Map (NEM) — Sea-Tac Airport

    This is the official 1991 Existing Noise Exposure Map for Seattle-Tacoma International Airport, prepared in accordance with FAR Part 150. The map covers the Sea-Tac flight corridor from Puget Sound to Lake Washington, showing noise contours, jurisdictional boundaries across King County municipalities, and land use designations including residential, school, hospital/nursing home, mobile home park, and airport zones; it is signed by W.E. Bus-Street, Director of Aviation Planning, Seattle-Tacoma International Airport, and dated April 15, 1993.
  • 1993-04-15

    Noise Exposure Map NEM Future 1996 pg 210 from 1993 Part 150 Study

    A Future Noise Exposure Map for Seattle-Tacoma International Airport projecting 1996 noise contours (Ldn 65, 70, and 75), showing affected land uses including residential, schools, and hospitals across the Sea-Tac area. Signed by R. Burr Stewart, Director of Aviation Planning, Port of Seattle, and dated April 15, 1993, at a scale of 1:36,000.
  • 1992-09-28

    Toledo-Winlock area visitation

    A September 1992 internal memo from Doug Graves and Len Oebser to Rick Aramburu summarizes a site visit to the Toledo-Winlock area of Washington State as a potential location for a new replacement airport. The site was praised for its large size, proximity to the I-5 freeway midway between Seattle and Portland, access to Burlington Northern rail lines, and its sparsely populated surroundings, which would minimize noise and environmental impacts. However, drawbacks noted included its distance from major population centers such as Seattle, Tacoma, Everett, and Portland, which would require some form of mass rapid transit to serve the airport effectively.
  • Des Moines Creek Parametrix 1992 Water Quality Study Monitoring Stations
    1991-12-18

    Des Moines Creek Parametrix 1992 Water Quality Study Monitoring Stations Map

    A map dated December 18, 1991 showing water quality monitoring stations (labeled DC-1 through DC-8 and TRIB-1 through TRIB-3) along Des Moines Creek and its tributaries in the Des Moines, Washington area near Sea-Tac Airport. The map identifies local landmarks including Bow Lake, Angle Lake, Puget Sound, Des Moines Marina, and major roads including Pacific Highway S, SR 99, and Military Road.
  • Stcp chapter unk pg 11 metro service and facilities 1990
    1990-01-01

    STCP Page 11: Proposed 1990 Metro Service and Facilities Map

    Page 11 of the Sea-Tac Communities Plan (POS 654), sponsored by the Port of Seattle and King County, showing a proposed 1990 Metro transit network map for the Sea-Tac area with express and local bus routes, transfer points, and park-and-ride lot locations. A legend notes that Metro was engaged in specific site selection for park-and-ride lots at the time of publication.
  • 1984-01-16

    Jackson International Airport noise remedy update: Overall program boundaries

    This 1984 draft document from the Port of Seattle outlines the Noise Remedy Update program for Seattle-Tacoma (Jackson) International Airport, defining geographic boundaries for three types of noise mitigation measures: property acquisition, purchase assurance, and sound insulation. The maps cover areas north through south of the airport, including neighborhoods such as Boulevard Park, Des Moines, Normandy Park, and Zenith, showing which zones qualify for each remedy based on aircraft noise exposure. Sound insulation coverage extends as far north as S. Kenyon Street, while acquisition zones are concentrated in the areas immediately surrounding the airport's runways.
  • Stcp chapter unk pg 9 traffic 1983 routes and volume state and county arterials
    1983-01-01

    Sea-Tac Communities Plan: 1983 Average Daily Traffic Volumes on State and County Arterials

    A map from the Sea-Tac Communities Plan (document reference POS 20820, page 9, section 4.2.7) showing 1983 average daily traffic volumes on state and county arterials in the Sea-Tac area. The plan was sponsored by the Port of Seattle and King County, and includes a legend noting that downward-pointing triangle symbols refer to section 6.6.6 for discussion.