A full service engineering firm with much experience in tunneling.
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WSDOT – Geotechnical Design Manual
Visit WSDOT – Geotechnical Design Manual
Project Related
Holocene Drilling Handles Tunnel Project
Specialty geotechnical drilling contractor Holocene Drilling of Edgewood, WA recently completed work on an interesting project for Sound Transit’s U-220 TBM Tunnel Project at the University of Washington Campus in Seattle. Their scope included drilling […]
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Geo Structures Inc.
Geo Structures Inc. is a design/build contractor specializing in engineered earth structures and foundations. They have experience with Geopier foundations, Impact Pier foundations, Rapid Impact Compaction (RIC), micropiles, soil nailing, MSE walls, underpinning and more. […]