Centennial Trail Extension
The Centennial Trail stretches more than 25 miles from the City of Snohomish to the Skagit County border in Snohomish County, Washington. The trail lies on what was once the Seattle, Lake Shore and Eastern Railway constructed in the early 1900s, which has since been abandoned. The County purchased the alignment and began redevelopment in […]
Creating Chambers Bay Championship Golf Course
Chambers Bay golf course, site of the 2015 US Open Championship, is the anchor of Pierce County’s 930-acre reclamation and economic development plan for Chambers Creek Regional Park, a historic waterfront location with a long history of industrial use as a gravel mine. The nationally recognized redevelopment plan balanced the county’s multiple needs at the […]
Rebuilding a Highway Destroyed by the Oso Landslide
This project was one of the fastest design-build deliveries in Washington state history, reopening approximately one mile of a critical highway exactly six months to the day after the catastrophic landslide near Oso, Washington, on March 22, 2014. The landslide flowed thousands of feet across the Stillaguamish River valley, obliterating dozens of homes and spreading […]
Washington State Ferry System Terminals Evaluation
The Washington State Ferry System (WSF), the fourth-largest ferry system in the world, transports 23 million passengers and 10 million vehicles across the waters of Puget Sound each year. The State-funded system includes 20 aging ferry terminals and docks that were not constructed to current seismic standards. Of particular concern are the timber trestles that […]
Walla Walla River Habitat Restoration
GeoEngineers developed a natural habitat restoration design for a 3,000-foot reach of the Walla Walla River near Milton-Freewater, Oregon for the Confederated Tribes of the Umatilla Indian Reservation. The Tribes were concerned about the lack of juvenile fish-rearing habitat through a reach of the river where spring Chinook and steelhead spawn each year. The Walla […]
Monte Cristo Bridge Hydraulic Design
In 2003, record fall rainstorms washed out a 650-foot section of the Monte Cristo Grade Road adjacent to the South Fork Stillaguamish River near Verlot, Washington. This unpaved gravel road had provided the only vehicle access to US Forest Service lands and recreational properties in the area until it was closed to traffic after the […]
I-84 Meridian Road Interchange
The I-84 Meridian Interchange in Meridian, Idaho, was built in 1965 to accommodate the approximately 12,000 vehicles driving along the highway each day. Today, the highway corridor sees more than 128,000 vehicles per day, and the aging interchange at Meridian Road could simply no longer handle the volume of traffic. Beginning in 2012, the Idaho […]
US Navy Culvert Replacement and Fish Passage Design
GeoEngineers developed the civil design concept and geotechnical details for constructing a 275-foot long, 20-foot diameter tunnel to replace a failing 48-inch diameter culvert under the Shelton-Bangor-Bremerton railroad near Belfair, WA. The railroad, owned by the US Navy and maintained by Puget Sound and Pacific Railroad, is used to transport various goods, supplies, building materials, […]
Allen Institute Brain Research Facility
The Allen Institute reclaimed historically industrial land in Seattle’s South Lake Union neighborhood for a state-of-the-art research center. The Institute’s facility is home to custom-designed robotic systems, automated technologies, laboratory space and high-powered computing hardware to process petabytes of data. Scientists will use the facility to study advanced neuroscience, learn how the human brain codes […]
Environmental Cleanup at Former Gold Processing Site in Nome, Alaska
Nome, Alaska is a coastal town of less than 4,000 people 500 miles northwest of Anchorage that experienced a great boom during the Alaska gold rush in the early 1900s. Placer gold mining continued to be one of the leading economic activities in Nome through the 1960s, with more than 3.6 million ounces of gold […]