Big Wood River Bridge
The Idaho Transportation Department (ITD) needed to upgrade the SH-75 bridge over the Big Wood River. The aging two-lane bridge located just outside Sun Valley, Idaho, was too small to accommodate ITD’s road-widening plans. ITD hired GeoEngineers to complete subsurface investigations and make geotechnical design recommendations for retaining walls adjacent to the new bridge and […]
Well Replacement for Eastern State Hospital
Eastern State Hospital is a 287-bed inpatient psychiatric hospital in Medical Lake, Washington, and one of just two state-owned adult psychiatric hospitals. This important medical facility relies on groundwater from two off-site production wells which pump water to the facility from a basalt aquifer system. Water levels in both wells were declining, and one of […]
Groundwater Well Replacement for Vera Water District
Vera Water and Power District operates a water system in Spokane Valley, Washington which consists of high-yield production wells at nine single- or multiple-well sites. One of Vera’s wells failed, and in response, Vera hired GeoEngineers to evaluate five alternatives to augment their water supply by a minimum of 3,000 gpm. Once the team identified […]
U.S. Fish and Wildlife Service Hatchery Debris Cleanup
In 2006, a United States Fish and Wildlife Service (USFWS) contractor demolished a fish hatchery building near Hagerman, Idaho and disposed of wood and concrete debris in a nearby ravine instead of a permitted landfill. The fish hatchery debris (known to contain lead paint) was commingled with debris from other demolition projects and abandoned in […]
Walla Walla River Enhancement Designs
Before this project, the 1.5 miles of the Walla Walla River southeast of Lowden, Washington, was far from ideal fish habitat. The reach had a deeply incised channel, confining levees, and other agriculture-related impacts making fish habitat almost non-existent. In 2013 the Tri-State Steelheaders (TSS), a non-profit fisheries enhancement group, hired GeoEngineers to design new […]
Upper Wallowa River Restoration Design
Wallowa Resources is a community organization dedicated to responsible natural resource management in Wallowa County, Oregon. They spearheaded a community effort to restore normative river conditions along the Wallowa River upstream of Wallowa Lake. A restored riverine environment would support kokanee salmon and bull trout, enhance the natural appearance of Wallowa State Park and reduce […]
Seiad Creek Habitat Enhancement
Seiad Creek is one of the most productive coho salmon tributaries in the Klamath River system. Located in the Northern California town of Seiad, most of the creek system contains high-quality fish habitat, but the habitat through the half-mile reach targeted by this project was a glaring exception. More than a century of placer mining […]
Puyallup River Basin System Analysis
Like many river systems running through developed land, the Puyallup River in Pierce County, Washington, sometimes floods. When it does, the water can impact public infrastructure, private property and engineered flood control structures. The Pierce County Surface Water Management Division contracted with GeoEngineers to analyze the river system and determine the effectiveness and specifics of […]
Lower Red River Meadow Stream and Floodplain Enhancement Design
Salmon is a vital resource for the Nez Perce Tribe (NPT), and has been for hundreds of years. The tribe has an overarching vision for the restoration and enhancement of the Lower Red River and floodplain in northern Idaho. The NPT wanted to reconfigure a reach of the Red River, making it more natural, and […]
John Day Watershed Restoration Strategy
The John Day River Basin is critical to the overall health of fisheries in the Columbia River Basin. The Confederated Tribes of the Warm Springs Reservation of Oregon (tribes), along with landowners and environmental funding agencies, needed a comprehensive watershed restoration plan for the region. These stakeholders wanted a long-term road map to direct restoration […]