CONTACT & LOCATIONS NEWS MARKETS SERVICES PROJECTS ABOUT CAREERS MARKETS Federal Well-versed with Federal agencies Serving a wide range of customers while juggling competing priorities, tight budgets, and multiple stakeholders, federal agencies need a reliable partner that provides practical consulting expertise for the design and construction of military, civil works, and facilities projects, and addresses environmental legacy issues. Shannon & Wilson has worked with most federal agencies, providing our full range of geotechnical, environmental, and natural resource services. We work with federal agencies to provide cost-effective solutions for challenging technical issues, to meet unique funding obligations, and to achieve ambitious completion schedules. SERVICES FOR: Dams and levees Buildings and infrastructure Hazardous materials clean-up Waterfront facilities Roads and bridges Towers and transmission lines Airports Intermodal facilities FEDERAL PROJECTS Puget Sound Naval Shipyard, Drydock No. 6 Transportation Federal MORE Olive Lake Dam Assessment Water MORE Multiple F-35A Projects Property Development MORE BPA Midway-Ashe 230kV Transmission Line Federal Industrial MORE Cougar Dam Downstream Fish Passage Federal MORE Crab Orchard National Wildlife Refuge Federal MORE Periodic Levee Inspections Water MORE Red Rock Canyon Scenic Loop Drive Transportation MORE NAWS China Lake Emergency Earthquake Services Federal 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

CONTACT & LOCATIONS NEWS MARKETS SERVICES PROJECTS ABOUT CAREERS ABOUT CONTACT AND LOCATIONS Tri-Cities TRI-CITIES, WA 2705 Saint Andrews Loop, Suite A Pasco, WA 99301-3378 509.543.2860 info-tricities@shanwil.com TRI-CITIES OFFICE PROJECTS Columbia Water Supply Project Water MORE Duportail Bridge Transportation MORE Wasteway No. 5 Reregulation Reservoir Water MORE SEE ALL PROJECTS 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