HWA is a full-service geotechnical engineering firm, offering consulting expertise and experience over a wide range of soil-mechanics and foundation engineering disciplines. Although HWA is a mid-sized Pacific Northwest firm, we work on major projects throughout the United States. HWA also performs international consulting assignments in Canada, Central America, Europe, Asia, and Africa.
HWA delivers geotechnical engineering services for projects from initial planning to final design, and construction procedures, inspection, and observation. Our geotechnical engineers and engineering geologists provide data and design recommendations to assist other engineers, architects, and planners in determining cost-effective designs for all manner of foundation systems, site development and preparation works, and construction techniques for a variety of projects. Additionally, our engineering and geological staff has a vast experience base with hazardous terrain assessment, and design and construction of slope stabilization methods for steep slopes or seismic instability. Frequently, our professionals perform peer reviews in support of city-owned capital projects, operations, and maintenance.
Typical Services Include:
Site investigations and assessments
Landslide stabilization and critical areas studies
Slope stability and slide stabilization design
Piles and drilled piers design and installation inspection
Retaining structures design and construction inspection
Earth pressures and shoring
Dam safety assessments
Pavement evaluation and design
Seismic response and soil liquefaction analyses
Site pretreatment and improvement methods
Dewatering and drainage design
Earthworks design and construction monitoring
Trenchless construction design