Region: West

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 […]

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 […]

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 […]

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, […]

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 […]

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 […]

Portland General Electric (PGE) operates seven hydroelectric facilities throughout Oregon that provide power to more than 1.7 million customers. To maintain its Federal Energy Regulatory Commission (FERC) license, PGE must meet stringent dam-safety requirements, but its existing data-gathering system required more than 200 man-hours to compile, analyze and generate the required annual reports. PGE asked GeoEngineers […]

The Cascadia Conservation District (CCD) and Trout Unlimited (TU) are working together to decrease instream structures that divert water from the Entiat River and Roaring Creek in Central Washington. These streams provide valuable salmon habitat and the direct diversions reduce streamflow in the lower Entiat basin during the irrigation season to a dangerous level for […]

One of the first major dams in the Pacific Northwest, the Cushman Hydroelectric Project, created two dams on the North Fork of the Skokomish River in the 1920s to provide power to the surrounding area. As part of a Federal Energy Regulatory Commission (FERC) relicensing term and a settlement agreement for the use of the […]

The Kentch Reach on the South Fork Walla Walla River has been subject to large-scale human disturbance for more than 100 years. Timber and agricultural uses involved straightening the river channel and isolating the river from its historic floodplain. The result was a fast-moving conduit that was virtually devoid of native fish spawning and rearing […]