CONTACT & LOCATIONS NEWS MENU ≡ SERVICES SPECIALTY SERVICES Laboratory In-house, full-service laboratories Our soils and construction-materials laboratories are staffed and equipped to test soil, rock, asphalt, and concrete. Data provided assists engineers during project design and helps determine specification conformance during project construction. Certified technicians perform laboratory testing for a wide variety of government, commercial, and industrial clients and in support of our own engineering projects. Our laboratories are validated to perform materials testing for the U.S. Army Corps of Engineers and accredited by the American Association of State Highway and Transportation Officials (AASHTO). LABORATORY FEATURES: Accredidation from AASHTO Validation from the US Army Corps of Engineers Lab Technicians certified by NICET and ACI LABORATORY PROJECTS Fir Island Farm Estuary Restoration Water MORE SR 520 Floating Bridge And Landings Project Transportation MORE Alaskan Way Viaduct Replacement Program MORE Cleveland Innerbelt Transportation MORE Tacoma Trestle Track & Signal Project Transportation MORE Smith Island Setback Levee & Estuary Restoration Water MORE Reserve Silica Inert Waste Landfill Property Development MORE Port Mann Bridge Transportation MORE Pike Place Market: Marketfront Property Development MORE Oso Landslide Assessment MORE Murray Combined Sewer Overflow Project Water MORE Honolulu Rail Transit Project Transportation MORE Seward Highway Rehabilitation Milepost 75-90 Transportation MORE St. George Island Harbor Navigation Improvements Transportation MORE Dalton Highway Milepost 109-144 Reconstruction Transportation MORE Fairbanks Memorial Hospital Surgery Addition Property Development MORE Tanana River Bridge MORE Multiple F-35A Projects Property Development MORE Academy Museum Of Motion Pictures Property Development MORE UPRR Los Angeles Transportation Center Yard Transportation MORE LAX United Terminal Redevelopment Transportation MORE Mobile Mud Spring Mitigation Transportation MORE NBCUniversal Area 51 Sound Stage Complex Property Development MORE Pepperdine University Outer Precinct Housing Property Development MORE White Point Landslide Transportation Water MORE Lake Oswego Interceptor Sewer Geotechnical Design Water MORE Oregon Zoo Elephant Habitat Property Development MORE Ridgewood View Park Reservoir & Pump Station Water MORE Southern Flow Corridor Project Water MORE BPA Midway-Ashe 230kV Transmission Line Federal Industrial MORE Cougar Dam Downstream Fish Passage Federal MORE I-5 Medford Viaduct Planning & Environmental Study Transportation MORE Reedsport Levee Certification Project Transportation MORE Sacramento Community Theater Property Development MORE Chicago To St. Louis High Speed Rail Transportation MORE Merchants Bridge Transportation MORE Short Line Railroad Illinois To Indiana Transportation MORE Lake Fort Smith Dam Water MORE St. Louis Flood Protection System Water MORE Argo Tunnel Flow Structure Water MORE Florida Interceptor Project Water MORE Colsman Tunnel Sanitary Sewer Rehabilitation Water MORE Fernhill Western Wetlands Water MORE Alaska Scientific Crime Detection Laboratory Property Development MORE SEE ALL PROJECTS Let's Talk About Your Project GET IN TOUCH MARKETS Transportation Water Property Development Industrial Federal SERVICES Geotechnical Engineering Contamination / Remediation Geologic Hazards Natural Resources Water Resources Design-Build Tunneling / Underground Arctic Engineering Construction Management Specialty Services ABOUT The Company People Corporate Responsibility/Scholarships CONTACT & LOCATIONS Seattle Anchorage Chicago Denver Fairbanks Jacksonville Los Angeles Madison Portland Sacramento Salt Lake City St. Louis Tri-Cities PROJECTS Explore CAREERS Working At Shannon & Wilson CONTACT & LOCATIONS NEWS CLIENT PORTAL © 2021 SHANNON & WILSON, INC. SEATTLE WEBSITE DESIGN