seismic hazard analysis

Grounded in science. Built for progress Geotechnical solutions that protect investments, people, and the future.Geotechnical services Learn more Special inspections Learn more Pavement engineering Learn more Municipal services Learn more Geological services Learn more Every decision supported by real geotechnical insight. From risk mitigation to smart foundations, we help progress move safely.Request a Proposal Services Geotechnical services Geological services Pavement engineering Special inspections Municipal services More Services Services Field Services Lab Services Geotechnical services Understand your site before it impacts your budget. We translate subsurface data into clear design guidance to reduce risk, avoid delays, and prevent costly surprises.Municipal services Build with materials you can trust. We validate performance in the lab and field to prevent rework and keep.

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asphalt mix designCold In-Place Recycling designcompaction testingfault investigationgeotechnical investigationsliquefaction evaluationnon-destructive testing (UT, MT, PT)pavement designslope stability analysiswelding inspection

Ciani & Hatch Engineering PLLC (CHE) is a woman-owned, woman-led geotechnical engineering firm founded in May 2023, located in Seattle, Washington and Boise, Idaho, serving clients across the Pacific Northwest. CHE provides geotechnical engineering, project management, and design, from small on-call design to large multidisciplinary alternative delivery projects, with experience in design-build projects for WSDOT, Sound Transit, and UDOT.

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augered and cored boringsbudget trackingcone penetration testsearned value reportingearth retention system and retaining wall designembankment designexploration plan & ROW permittingfish passage / fish barrier removal designgeologic hazards & critical areas studiesgeophysical surveygeotechnical site investigationground improvement / soft ground designgroundwater monitoring wellsliquefaction and lateral spread analysispavement designpeer review and comment resolutionshallow and deep foundation designshoring and ground anchor designslope stability analysis