TagSR509(79)

Aerial photograph showing a multi-lane highway (likely I-5 or SR-99 in the Pacific Northwest based on vegetation, terrain, and visible Puget Sound shoreline) with an active road construction zone at a cross-street overpass. Construction equipment including excavators is visible at the interchange, and a residential/suburban area with dense tree cover surrounds the corridor.

Aerial photograph showing large-scale ground clearing and grading operations adjacent to what appears to be an airport runway or taxiway area in the upper portion of the frame. A residential neighborhood, road intersection, and what may be a water treatment or detention facility are visible in the foreground, with heavy construction equipment scattered across the disturbed soil areas.

Aerial photograph showing a multi-lane highway (likely I-5 or similar Pacific Northwest interstate) intersecting with a surface road, with active bridge or overpass construction visible at the crossing. A body of water consistent with Puget Sound is visible in the background, along with suburban residential development and dense tree cover, suggesting a location in the greater Seattle-Tacoma area.

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.

An aerial photograph shows a large cleared construction site with active earthmoving equipment including excavators and bulldozers. The site is surrounded by evergreen trees, with what appears to be a water treatment facility visible in the upper left and a residential property in the lower right corner.

A planning map from the Sea-Tac Communities Plan (POS 955), sponsored by the Port of Seattle and King County, showing the existing S.R. 509 alignment, the proposed S.R. 509 extension, and the south airport access route in the vicinity of Seattle-Tacoma International Airport. The document is dated revised 4/22/75 and is identified as page 11, section 6.6.2.

A planning map from the Sea-Tac Communities Plan (document section 6.6.2) depicting the S.R. 509 corridor, showing the existing S.R. 509 route, proposed S.R. 509 extension, and south airport access roads in the SeaTac/Burien area of King County, Washington. The map is sponsored by the Port of Seattle and King County, revised April 22, 1975, and identifies key roads including Des Moines Way, Military Road, Highway 99, and Interstate 5.