FEATURED: Fir Island Farm Estuary Restoration   |   Skagit River Delta, WA    EXPLORE

FEATURED: Alaskan Way Viaduct Replacement Program   |   Seattle, WA    EXPLORE

FEATURED: Seward Highway Rehabilitation   |   Turnagain Arm, AK    EXPLORE

FEATURED: SR 520 Floating Bridge and Landings Project  |   Seattle, WA    EXPLORE

FEATURED: Wasteway No. 5 Reregulation Reservoir   |   Sunnyside, WA    EXPLORE

FEATURED: Unalaska Landfill   |   Unalaska, AK    EXPLORE

FEATURED: Mobile Mud Spring |   Imperial County, CA    EXPLORE

gEOTECHNICAL engineering & environmental SCIENCE

Technical Excellence
Shared Success

Founded on innovation,
65 years of success.

Our combined expertise in civil engineering, surface water, groundwater, geotechnical engineering, geology, and natural resources services provides a comprehensive, single-company solution to your infrastructure and environmental projects.

recent projects

White Point Landslide   |   San Pedro, CA

Geotechnical Engineering   |   Water Resources   |   Construction Management 

Dalton Highway Milepost 109-144 Reconstruction   |   Alaska

Geotechnical / Geological   |   Arctic Engineering   |   Laboratory Testing

Elliott Bay Seawall  |  Seattle, WA

Geotechnical Engineering  |  Contamination/Remediation  | Geologic Hazards

Cougar Dam Downstream Fish Passage   |   Lane County, OR 

Geotechnical Engineering   |   Geologic Hazards   |   Natural Resources   |   Water Resources

Yuba County Landslide Emergency Repair  |  Yuba County, CA

Geotechnical Engineering 

Metro of Panama, Line 2   |   Panama City, Panama

Geotechnical Engineering   |   Geologic Hazards

Periodic Levee Inspections   |   Iowa, Illinois & Arkansas

Geotechnical Engineering   |   Geologic Hazards

St. George Island Harbor Improvements   |   St. George, AK

Geotechnical Engineering   |   Geologic Hazards   |   Laboratory Testing

Denver International Airport Slope Excavation   |   Denver, CO

Geotechnical Engineering   |   Instrumentation

The original collaboration.

Since 1954, Shannon & Wilson’s innovative spirit has been reshaping an industry.

Shannon & Wilson Lab, 1960s
Seattle First National Bank Building Tie Back Wall

William L. Shannon and Stanley D. Wilson were early pioneers in the field of geotechnical engineering. In 1954, they founded Shannon & Wilson as the embodiment of their collaborative spirit and shared passion for great ideas that can change the world.

shannon & Wilson today:
300 12 +51,000
Employees Offices Projects

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Find your future at
Shannon & Wilson

Building on 65 years of fascinating work, Shannon & Wilson is always looking ahead.  

  • 100% employee-owned
  • Superior benefits 
  • Work with some of the best minds in the industry

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