Shannon & Wilson, Inc.

Geotechnical & Environmental Consultants

Website

About the firm

Shannon & Wilson, Inc. is a full-service geotechnical and environmental consultancy founded in 1954. It combines civil engineering, surface water, groundwater, geotechnical engineering, geology, and natural resources services to support infrastructure and environmental projects across transportation, water, property development, industrial, and federal markets.

Established
1954
Team
Midsize
Firm type
Civil Engineering · Geotechnical Engineering · Environmental Engineering · Design-Build

People

Michael D. HarneySeattle Office Manager

Kyle BrennanAnchorage Office Manager

Capabilities

Geotechnical Engineering

Work in this area is organized into supported delivery tasks.

  • Geotechnical Studies

    Support includes Geotechnical studies.

  • Explorations

    Support includes explorations.

  • Testing To Provide Design

    Support includes testing to provide design.

  • Construction Recommendations For Foundations

    Support includes construction recommendations for foundations.

  • Earth Retention

    Support includes earth retention.

  • Pavement

    Support includes pavement.

  • Site Drainage

    Support includes site drainage.

Environmental & Remediation Services

Comprehensive environmental and natural resources services to address regulatory and site constraints for infrastructure development.

  • Contamination / Remediation

    Services addressing environmental contamination assessments, soil and groundwater testing, and site remediation.

  • Natural Resources

    Environmental and ecological evaluations to balance infrastructure needs with the protection of natural resources.

Water Resources & Hydrogeology

Engineering and geological support for water supply, surface water, and groundwater systems.

  • Water Resources

    Hydrological assessments and management strategies for dams, levees, rivers, shorelines, and wetlands.

Geologic Hazards & Underground Engineering

Hazard evaluation and engineering solutions for complex subsurface and challenging ground conditions.

  • Geologic Hazards

    Identification, monitoring, and engineering mitigation solutions for landslides, seismic activity, and unstable terrain.

  • Tunneling / Underground

    Subsurface engineering, trenchless technology, and design services for utility and transportation tunnels.

  • Arctic Engineering

    Cold-regions engineering solutions specifically designed for remote northern environments and permafrost conditions.

Project Delivery & Construction Support

Specialized support throughout construction phases, including design-build integration, site monitoring, and testing.

  • Design-Build

    Integrated engineering design and construction solutions that streamline project delivery.

  • Construction Management

    Field observation, instrumentation monitoring, and management services during construction.

  • Specialty Services

    Advanced geotechnical testing, laboratory testing, and customized instrumentation programs.

Industries

Transportation · Highways & Roads · Bridges · Tunnels · Rail · Transit · Airports · Ports & Harbors · Water Resources · Stormwater & Flood Control · Land Development · Commercial · Residential · Industrial · Power Generation · Manufacturing · Mining · Federal

Projects

Lower Dungeness River Floodplain Restoration and Levee Realignment

Clallam County, WA · Water Resources · 2024 · Client: Clallam County

Project details

Floodplain restoration and levee realignment project in Clallam County which won an ACEC Washington 2024 Engineering Excellence Gold Award.

TAPS-Lost Creek Thermal Improvements

Alaska · Industrial · 2022 · Client: Alyeska Pipeline Service Co.

Project details

Thermal improvements project receiving the ACEC Washington 2022 Engineering Excellence Gold Award for Special Projects.

Metro of Panama, Line 2

Panama City, Panama · Transit

Project details

Geotechnical engineering and geologic hazard services for Line 2 of the Panama Metro.

St. George Island Harbor Improvements

St. George, AK · Ports & Harbors

Project details

Geotechnical engineering, geologic hazards evaluation, and laboratory testing for harbor improvements on St. George Island.

Shannon & Wilson, Inc. - Engineering Firms