Geosciences Services

SHN geologists and geotechnical engineers bring decades of field experience and institutional knowledge to your projects.

SHN geologists and geotechnical engineers:

bring decades of field experience in Northern California and Southern Oregon to your project,
understand what geotechnical information is needed and the most effective way to get it,
find practical solutions to complex geotechnical problems, which are easier to explain, permit, design, and construct, and
apply SHN’s 45 years of institutional knowledge to your project.

SHN staff consists of licensed geologists, engineering geologists, hydrogeologists, and geotechnical engineers. Our senior staff offer their unique experience in the complex northern California and southern Oregon geologic environment, where a variety of geohazards and geotechnical challenges come with a landscape that encompasses three separate tectonic plates. We have earthquakes, volcanoes, and tsunamis and we are experts in the interpretation of these hazards. Our understanding of our local environments allows our team to take on a diverse range of projects and quickly and effectively interpret site conditions, hazards, investigation methods, and potential mitigation solutions.

The following is a partial list of SHN’s geoscience services:

Please use our website’s search feature or contact us at info@shn-engr.com if you’re unable to find what you’re looking for!

Coastal geology studies
Earth retention structures: selection, design, construction, and inspection
Fault rupture hazard investigation
Foundations, deep and shallow systems: selection, design, construction, and inspection
Geohazards constraints analyses and geologic mapping
Geologic/geotechnical site characterization
Groundwater resource and hydrogeologic studies
Landslide investigations and repairs
Liquefaction analysis and settlement assessment
Rockfall hazard assessment, rock slope stability
Soil analysis for on-site sewage disposal
Soils engineering
Subsurface investigations using a wide variety of exploration techniques, such as machine boring, sonic drilling, cone penetration testing
Surface and subsurface drainage studies
Watershed assessments and studies

Types of projects that SHN geologists often work on include:

Public spaces and infrastructure: hospitals and schools and universities; water and wastewater infrastructure; water tanks; pipelines; local roads, highways, trails and bridges; dams, hydroelectric and industrial facilities; and landfills.
The natural environment: landslide and coastal bluff evaluations, slope rehabilitation systems, stabilization and mitigation designs; watershed analyses, environmental assessment support; groundwater resource development and monitoring programs; and damage evaluations.
Industrial properties and resource extraction: geologic investigations for timber harvest plans, forest road development and restoration; power plant hazard evaluations; open pit and underground mining investigations; and landfill and geotechnical systems assessments.