City Place III LLC (Vulcan, Inc.)
Seattle, Washington
Hart Crowser is providing geotechnical design, hydrogeologic analysis, environmental, and construction observation services to support office and retail development on four city blocks in the South Lake Union area. This 1.8 million-square-foot campus has multiple levels of underground parking that extend below the water level of nearby Lake Union.
Seattle Children’s Hospital/Seneca Group
Seattle, Washington
Hart Crowser has been responsible for geotechnical design and construction observation for the Children’s Hospital since 1987. Most recently, we supported the major Capital Improvement Project, which included the following.
Seattle Children’s Hospital
Bellevue, Washington
Hart Crowser assessed geotechnical considerations for several potential sites and provided geotechnical engineering design for the selected site in Bellevue. Slopes on the site are designated steep slope critical areas by the City of Bellevue. We designed a 30-foot-high permanent soil nail shoring system to provide economical shoring.
Highline Medical Center.
Burien, Washington
Hart Crowser provided geotechnical and seismic design recommendations as well as observations and consultation during construction for the addition of the Birch Wing to the main Highline Medical Center campus. The new wing is five levels (170,000 square feet), with the potential for four additional levels as part of a future expansion. Construction of new parking areas required a significant cut into an existing slope and construction of a permanent, 28-foot-high tieback shoring wall.
Starbucks Coffee Company/Seneca Group
Seattle, Washington
This new building incorporates the historic 83 King Street (Seattle Hardware) building. The building’s excavation was 35 feet below the water table and adjacent to the Alaskan Way Viaduct. The excavation could not be dewatered conventionally because of potential impacts on the surrounding buildings and viaduct ramps. Instead, Hart Crowser used Cutter Soil Mixing shoring techniques with tieback anchors to construct an impervious shoring and dewatering system.
Alexandria Real Estate
Seattle, Washington
Hart Crowser provided geotechnical design for development of a two- and three-story building with two levels of underground parking near Lake Union. Since the building footprint is close to the property boundary, the right of way would not allow cut back slopes, so we used a temporary shoring system for safety and stability of the adjacent buildings, streets, and utilities.
Amgen, Inc.
Seattle, Washington
Hart Crowser provided geotechnical design and environmental services for development of this 40-acre campus on the Seattle waterfront. The first phase of the campus included five laboratory buildings. The second phase included a parking garage, six new laboratory and support buildings, and underground utility corridors.
Swedish Medical Center
Seattle, Washington
Hart Crowser has performed geotechnical and environmental design and construction services on this campus since the early 1980s. We have been the design consultant on four major projects— the Nordstrom Medical Tower, the Arnold Pavilion, the Southeast Addition, and the Swedish Cancer Institute. We most recently conducted a geotechnical engineering design study for the Swedish Hospital Medical Center Cancer Institute, a multi-story addition to the Arnold Building.
Huitt-Zollars, Inc.
Longview, Washington
This 455-acre industrial park included several thousand feet of paved roadways as well as water and sewer systems, storm drainage conveyance, treatment and detention facilities, and private utilities. Much of the geotechnical design needed to accommodate challenging soft ground conditions.
Lowe Enterprises Northwest, Inc.
Seattle, Washington
Hart Crowser provided geotechnical engineering design, environmental assessment, and construction observation services for this seven-story office building. The building included several levels of underground parking below the water table that required our hydrogeologist to work with the project team to design construction dewatering and permanent drainage.
Nitze-Stagen & Co., Inc.
Seattle, Washington
Geotechnical services for this seven-story parking garage addition at the Starbucks headquarters required deep foundation design to support heavy loads. We also provided seismic design recommendations in this area that is prone to liquefaction.