Region: West

More than 800,000 people a day travel Interstate 405, the 30-mile-long freeway that serves Bellevue, Kirkland, Redmond and other communities east of Seattle. The I-405 Bellevue Braids Design-Build project is one of the most critical projects in the Washington State Department of Transportation (WSDOT) Master Plan to reduce traffic congestion and improve mobility for users […]

From 1978 through 2000, a series of crop-dusting companies used the Port of Skagit County’s (WA) Taxiway F Site at the Skagit Regional Airport. Their operations at the facility included storing and mixing pesticides, fungicides and herbicides and loading them onto aircraft. The chemicals released in the process contaminated an area measuring approximately 2.2 acres, […]

GeoEngineers provided geotechnical design and construction-monitoring services for Stadium Place Phase One, a mixed-use, high-rise residential development located in Seattle’s historic Pioneer Square district. Stadium Place Investors, LLC is developing the project, which features a four-story concrete podium containing nearly 400 parking stalls and ground-level retail. The podium supports three residential towers, and extends as […]

The Port of Portland’s container wharf is an active facility and the Port’s primary source of revenue. Because the wharf was constructed in the 1960s and 1970s, it did not conform to the current code seismic standards. In 2000, the Port launched an initiative to upgrade the wharf, but by 2008 when the Port secured […]

GeoEngineers led geotechnical design and provided construction support services to connect state Highway 44 and US Highway 20/26 in Treasure Valley near Boise, ID. This project is the first phase of the future Central Valley Expressway that will connect seven cities to Interstate 84. GeoEngineers, as part of a design team selected by the Idaho […]

The Washington Department of Ecology contracted with GeoEngineers to explore and evaluate aquifer conditions in a 5-square-mile study area located in the northern portion of Douglas County, WA. The contract resulted from the Washington State Legislature’s 2006 directive to the Department of Ecology to aggressively pursue water-supply development in the Columbia River basin through storage […]

Two dams in Olympic Nationa Park, Glines Canyon and Elwha, were slated for removal beginning in 2011 as part of the National Park Service’s Elwha River Restoration project. Both dams were upstream of a salmon hatchery owned and operated by the Lower Elwha Klallam tribe. To prepare for this project, the tribe needed to move […]

After Hurricane Katrina, the Federal Emergency Management Agency (FEMA) and the US Army Corps of Engineers enacted a series of policy changes that have affected communities across the nation. In addition to new design and construction guidelines for levees and new processes for determining flood insurance rate maps, the Corps placed the responsibility for levee […]

The Ledgewood Landslide that occurred on March 27, 2013 on the west side of Whidbey Island was one of the largest shoreline landslides in recorded Puget Sound history. The slide created a near-vertical headscarp at the crest of the slide area that was approximately 600 feet wide. The slope failure pushed debris approximately 250 feet […]

The 45 Ranch, along the South Fork of the Owyhee River in the remote canyon lands of southwest Idaho, encompasses the most ecologically significant bottomlands habitat within the entire 52 miles of the river. Previous land management practices reduced the Ranch’s once-vibrant wet meadows to dry, desiccated fields of weeds. The Nature Conservancy engaged GeoEngineers […]