What the heck is GRS-IBS you ask? GRS-IBS stands for Geosynthetic Reinforced Soil-Integrated Bridge … Read More

Geotechnical and Environmental Consulting
We know the Pacific Northwest geologically and environmentally—and have been applying this knowledge together for more than 20 years. Our geoprofessionals are expert analysts and problem solvers—identifying issues and delivering practical, cost-effective, site-specific solutions to keep your project on schedule and on budget.
We are geoprofessionals with more than a century of collective experience—engineers and designers, analysts and consultants, all with deep knowledge and the skills to apply it. Count on us for the expertise you need and the assurance you want to evaluate your site and meet your underground challenges.
Zipper Geo Associates, LLC
19019 36th Avenue West, Suite E
Lynnwood, Washington 98036
A King County Certified Small Contractor