The trusted team you’ve worked with at Nelson Geotechnical Associates is now part of MacKay.
While our name has changed, our commitment to responsive service, strong client relationships, and high-quality engineering solutions remains the same. As part of MacKay, we’re able to offer the same local expertise with access to expanded resources, specialized services, and a broader team of professionals throughout the Western United States.
MacKay is an infrastructure and environmental services firm with more than 50 years of experience. We serve clients across the United States, with offices in 9 states and a growing national footprint. Our growth reflects intentional expansion through strategic partnerships and acquisitions, advancing our vision to become a national leader by empowering our people to solve complex challenges and deliver resilient, long-term solutions.
Khaled Shawish, PE is an experienced and trusted leader who values collaboration, strong relationships, and thoughtful problem-solving. He is committed to helping clients and teams navigate complex challenges, providing the technical guidance and perspective needed to move projects forward with confidence. Khaled takes pride in delivering practical solutions and building lasting relationships with clients, project teams, and partners. Khaled brings deep expertise in foundations, retaining walls, seismic and liquefaction analysis, landslides, and slope stability.
Khaled Shawish, PE is an experienced and trusted leader who values collaboration, strong relationships, and thoughtful problem-solving. He is committed to helping clients and teams navigate complex challenges, providing the technical guidance and perspective needed to move projects forward with confidence. Khaled takes pride in delivering practical solutions and building lasting relationships with clients, project teams, and partners. Khaled brings deep expertise in foundations, retaining walls, seismic and liquefaction analysis, landslides, and slope stability.
Address
19900 144th Avenue NE
Suite 200
Woodinville, WA 98072
Phone
425.486.1669
Address
105 Palouse Street
Wenatchee, WA 98801
Phone
509.665.7696
Through excellence in design, planning, and project execution, we’re building a better tomorrow, together.
Connecting networks and powering communities.
Enhancing the spaces where people live, work, and play.
Creating spaces where communities gather, grow, and thrive.
The engineering behind the materials that make everything possible.
Managing, protecting, and delivering our most vital resource.
Transforming environmental challenges into new opportunities.
Safe, efficient, and reliable systems across road, rail, and air.