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“In summary, you (Dave McCormack) have done an excellent job. Your product represents a quantum leap in our understanding of the subsurface geology of the region (area surrounding Seattle-Tacoma International Airport)...” Read more...

Geotechnical Engineering Services

Creating stable slopes and foundations

Aspect develops practical geotechnical solutions for challenging settings. Our geologists and engineers apply state-of-the-art technologies to best meet clients’ goals. Each project begins with a thorough geologic analysis of the site. Before performing an engineering analysis, we develop an integrated understanding of the geologic, hydrologic, and soil conditions through mapping and subsurface exploration. This approach has proven successful for hundreds of projects in the Pacific Northwest — projects involving the construction of dams, tunnels, outfalls, schools, buildings, pipelines, roadways, earth-retaining structures. We also specialize in coastal stabilization and restoration. Another area of expertise is updating critical areas regulations, a process that entails conducting a “best available science” review and producing supporting GIS maps. Browse our case studies to learn more about some of our recent projects.

For information about our geotechincal engineering projects or services, contact John Peterson .

Capabilities

Geologic Evaluation & Site Hazard Assessment

• Geologic investigations, mapping, and interpretation
• Regional and glacial stratigraphic analysis
• Sensitive area identification and mapping
• Seismic and fault hazard analysis
• Slope stability analysis

Coastal Processes

• Coastal geology and shoreline bluff / beach analysis
• Shoreline modification design
• Alternative “soft” bank protection design
• Beach nourishment and shoreline mitigation
• Regulatory and permit assistance
• Geotechnical engineering

Deep & Sensitive Slope Foundation Design

• Shoring / soil-retaining structures
• Slope stabilization and landslide remediation
• Landslide diversion and catchment systems
• Construction observation and dewatering design

Land Development Services

• Site development feasibility analysis
• Due-diligence assessments for geologic hazards
• Design of stormwater infiltration systems
• EIS and SEPA checklist preparation
• Seepage / drainage analysis and design

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