TagSR509(120)
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2002-01-01SR 509: Corridor Completion/I-5/South Access Road revised draft environmental impact statement and draft Section 4(f) evaluation
★ 32This January 2002 Revised Draft Environmental Impact Statement evaluates proposed improvements to SR 509 and I-5 in southwest King County, Washington, including a freeway extension to enhance southern access to Seattle-Tacoma International Airport. The study, prepared jointly by the Federal Highway Administration, WSDOT, Port of Seattle, King County, and the Cities of SeaTac and Des Moines, examines three build alternatives and a no-action alternative, differing in their proximity to Des Moines Creek Park and the airport runway protection zone. The proposed SR 509 extension corridor would be a minimum of 200 feet wide to accommodate general purpose and high-occupancy vehicle lanes in each direction. -
2001-09-10EXH AR028013: Third Runway Construction Is a Work in Progress
Port of Seattle webpage (AR028013) describing Third Runway construction progress at Seattle-Tacoma International Airport (Sea-Tac Airport). Details include delivery of fill material via temporary on/off ramps connecting South 176th Street and Highway 509, construction of retaining walls, stormwater detention pond, timber noise wall, and shoulder widening along SR-509. Contract for 1.9 million cubic yards of -
2001-06-22Aerial View of Highway, Forested Buffer, Retention Ponds, and Airport Runway or Taxiway
Aerial photograph showing a multi-lane highway running diagonally across the frame, with a dense forested buffer zone to the north and active construction equipment visible along the roadway margin. A water treatment or retention facility with rectangular settling ponds is visible in the upper left, and what appears to be an airport runway or taxiway is visible at the top of the frame. -
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2001-06-22Aerial View of Highway Interchange Construction Near Airport Infrastructure
Aerial photograph showing a multi-lane divided highway with an overpass/interchange under active construction, with heavy equipment visible along the roadway. A large forested parcel and what appears to be airport-related infrastructure, including what may be a retention or treatment pond, are visible in the upper portion of the image. -
2001-06-22Aerial View of Multi-Lane Highway Interchange Near Commercial Area in Pacific Northwest
Aerial photograph showing a busy multi-lane highway interchange featuring an overpass bridge crossing a parallel road, with a river and green vegetation visible to the left. Commercial and industrial buildings with large parking lots are visible in the upper portion of the image, consistent with a suburban Pacific Northwest setting. -
2001-06-22Aerial View of Retention Pond and Highway Near Sea-Tac Airport
Aerial film photograph showing a dark pond or retention basin adjacent to a winding road, with a multi-lane highway visible in the upper left. The lush green, semi-developed landscape and highway configuration are consistent with the Sea-Tac Airport region of Washington State. The film shows edge fogging on the left side. -
2001-06-22Aerial View of Road Bridge Over Highway Near Sea-Tac Airport With Construction Activity
Aerial photograph showing a road bridge spanning a multi-lane divided highway, with active construction equipment visible along the roadway. In the background, airport taxiways and runway infrastructure are visible, consistent with the Sea-Tac Airport vicinity, along with a wooded buffer area and a commercial/industrial yard to the right. -
2001-06-22Aerial View of Freeway and Big-Box Retail Zone Including Lowe’s, with Waterway
Aerial photograph showing a multi-lane freeway (likely I-5 or similar Pacific Northwest interstate) intersecting with a commercial retail zone. A Lowe's home improvement store logo is visible among the big-box retail buildings, with a river or waterway visible to the left and extensive parking lots throughout. -
2001-06-22Aerial View of Forested Wetland and Ponds Adjacent to Sea-Tac Airport During Construction
Aerial photograph showing a forested wetland area with ponds adjacent to a multi-lane highway and an airport facility visible in the background. Construction activity and graded earth are visible, suggesting active development or mitigation work in the area.