• 2022-11-16

    Highline Forum agenda: South King County Community Impact Fund update and Port Noise Program update

    The Highline Forum met on November 16, 2022, hosted by the Highline School District at SeaTac City Hall, with a focus on the South King County Community Impact Fund and Port Noise Program updates. The agenda included presentations from the Port of Seattle, Sound Transit, and the Washington Department of Transportation, alongside public comment opportunities offered both in-person and virtually via Microsoft Teams. The document also lists six bimonthly Highline Forum meeting dates scheduled throughout 2023, each running from 2:30pm to 4:30pm.
  • 2022-11-16

    SR 509 Completion Project: Highline Forum presentation

    A November 2022 WSDOT presentation by Construction Manager Andrey Chepel outlines progress on the SR 509 Completion Project, part of the broader Puget Sound Gateway Program in King County. The project aims to improve freight and passenger connections to the Port of Seattle and Sea-Tac Airport area by completing a long-planned highway extension. The presentation covers construction stages 1a and 1b, upcoming Stage 2 procurement, and community engagement efforts.
  • sr509 earth 4 cropped

    Aerial map of the SeaTac/Des Moines, Washington area showing labeled land parcels relevant to Sea-Tac Airport planning, including the City of SeaTac SR-509 Surplus 8.8 Acres, DMCBP West 14.4 Acres (Port of Seattle), Barnes Creek Wetland Mitigation 220th–223rd, and runway reference points (3rd Runway @ 200th, 16L/34R @ 200th, 16C @ 200th). The map also identifies the Midway Sewer District Plant, Barnes Creek Nature Trail, and major roadways including SR-509 and I-5.
  • sr509 earth zoom 1 (2)

    Aerial map of the Sea-Tac Airport vicinity showing labeled land parcels including '3rd Runway @ 200th – City of SeaTac SR-509 Surplus 8.8 Acres,' 'DMCBP West 14.4 Acres (Port of Seattle),' and 'Barnes Creek Wetland Mitigation 220th–223rd,' along with runway references 16C and 16L/34R at 200th Street. The map appears to be part of a Port of Seattle or City of SeaTac land use or noise-mitigation planning document.
  • sr509 earth 3 (3)

    Aerial map of the Sea-Tac Airport vicinity showing labeled parcels including the 'City of SeaTac SR-509 Surplus 8.8 Acres,' 'DMCBP West 14.4 Acres (Port of Seattle),' runway designations 16C and 16L/34R at 200th Street, and Barnes Creek Wetland Mitigation area between S 220th and S 223rd. Nearby landmarks including DoubleTree by Hilton Hotel Seattle Airport, Best Western Seattle Airport, IHOP, Safeway, and I-5 toll point are also visible.
  • SR-509 Stage 2

    Aerial map of the Sea-Tac Airport vicinity showing labeled parcels and points of interest relevant to noise and land use policy, including the 3rd Runway at 200th Street, City of SeaTac SR-509 Surplus 8.8 Acres, DMCBP West 14.4 Acres (Port of Seattle), Barnes Creek Wetland Mitigation area at 220th-223rd, and runway designations 16C/34C and 16L/34R at 200th. Nearby landmarks including DoubleTree by Hilton Hotel Seattle Airport, Best Western Seattle Airport, Safeway, IHOP, and Angle Lake Park are also visible.
  • sr509 earth (2)

    Satellite map of the SeaTac/Des Moines, Washington area showing Seattle-Tacoma International Airport and surrounding neighborhoods, with color-coded overlays marking specific runway corridor points labeled '3rd Runway @ 200th,' '16C @ 200th,' and '16L/34R @ 200th,' along with orange and red highlighted zones near S 216th Street suggesting noise impact or land-use study areas. Visible landmarks include Angle Lake, Best Western Seattle Airport, IHOP, Safeway, Barnes Creek Nature Trail, and Interstate 5.
  • SR-509 surplus-cropped

    Satellite map of the Des Moines/SeaTac area south of Seattle showing marked approach corridors for Sea-Tac Airport runways 16C, 16L/34R, and the 3rd Runway at S 200th Street. A red polygon highlights a noise-impact or study zone extending southward through residential Des Moines roughly between S 216th Street and S 228th Street, near Barnes Creek Nature Trail and Des Moines Beach.
  • SR-509 Stage 2 2022_07_12_RM_10b_Presentation_Des-Moines-Creek-West-Ground-Lease

    Aerial marketing map depicting a 19.8-acre Business Park (B-P) zoned property in Des Moines, Washington, located adjacent to the Des Moines Creek Business Park and near Seattle-Tacoma International Airport (SEA). The map highlights the SR-509 Extension corridor, Angle Lake Station, the newly constructed 24th-to-28th Street connection, and proximity to Interstate 5 and Highway 99.
  • Barnes Creek Trail Mitigation Transportation Committee 09 Jun 2022 Agenda Pdf

    A Washington State Department of Transportation (WSDOT) presentation slide labeled 'Barnes Creek Mitigation Site – Stage 2' showing a draft conceptual restoration plan map for Barnes Creek Wetland Mitigation, part of the Puget Sound Gateway Program SR 509/24th Ave. S. to S. 188th St. New Expressway Project. The slide notes WSDOT is avoiding steep slope areas and identifies three potential site access points at South 223rd Street, South 222nd Street, and South 220th Street.