Engineering Geology & Geophysics
Know your site better with detailed geophysical surveysEngineering Geology That Digs Deep Into the Data
Know Your Site Risks
Rock & Slope Stability
Gain a solid understanding of your site’s potential hazards, like landslide and erosion risks.
- Hard Rock Quarry Studies
- Rock Slope Evaluations
- Rock Bolt Design
- Landslide Evaluations
- Regional Landslide Mapping
- Ocean Bluff Erosion
Plan For Earthquakes
Seismic & Fault Studies
Understanding your site’s seismic activity and earthquake risks helps you build a structure that will withstand them.
- Earthquake and Seismicity Studies
- Fault Studies
- Seismic Load on Structures
Drill Into Site Data
Geologic & Subsurface Investigations
Gain a better understanding of your site’s subsurface condition and how it affects your project.
- Geologic Literature & Map Reviews
- Subsurface Investigations
- Coring & Core Analysis
- Seismic Refraction Survey
- Surface Wave Analysis Survey
- Resistivity Survey
Protect Your Groundwater
Groundwater & Hydrology Studies
Gain insight on the groundwater movement and its impact on your site.
- Groundwater & Aquifer Evaluations
- Large On-Site Septic System Groundwater Impact Assessment Study
- Local & Regional Groundwater Resource Evaluations
- Preliminary Groundwater Analyses
- Construction Effects on Wells
- Basin Groundwater Analysis
- Project Water Requirements
Analyze Your Materials
Aggregate & Material Testing
Accurately understand the quality and extractable quantity of aggregates and materials in your quarry site, while maintaining quarry slope stability.
- Aggregate Source Development
- Aggregate Quality Testing
Local Geologic Expertise
Without local geological understanding, your project’s off to a muddy start. You need experts who know the Pacific Northwest and the unique challenges it brings to every project.
We use core data, aerial photography, and specialized geophysical tactics, combined with state-of-the-art soil and rock evaluation software, to understand your geologic hazards and earthquake risks. Our own materials testing laboratory ensures your results are accurate and reliable. And our team isn’t just knowledgeable; they are licensed experts in Oregon State’s geology.
How Our Engineering Geology Services Work
Go beyond surface-level data on your jobsite.
Step 1
You send the concept
Send us your project’s documents and details.
Step 2
Receive a tailored proposal
We’ll scope the project and give you a comprehensive proposal.
Step 3
Desk study & site investigation
With the proposal signed, we’ll investigate your site and the project challenges you’re facing.
Step 4
Preliminary results
We’ll share our preliminary findings and recommendations with your team. Then, we’ll meet with you to discuss them.
Step 5
Final Report
You’ll receive a final report that you can use to inform your design decisions and build safely.
Geophysical Surveys That Protect Your Project
High-stakes construction requires highly skilled geologic expertise. Luckily, we’ve got it.
Our Engineering Geology Rocked Their World
Our construction planning and design services are trusted by public agencies, architects, developers, homeowners, and businesses across Oregon.
Amanda B.
Professional and quick to respond and schedule appointments. Ben was kind and most helpful. He went our of his way to help us.
Amanda B.
Michael C.
Excellent work ethic. On time with reports. Friendly staff, I would pick Galli Group as the number one engineering company in this area. Don't waste your time with others. Book an appointment now and get your project going ahead quickly and professionally. Much Aloha to the staff and owner.
Michael C.
Shelly G.
Great people that you can trust!
Shelly G.
Rene P.
Great service and a very quick response to our needs!
Rene P.
Russell H.
Very helpful, professional and friendly.
Russell H.
Geophysical Survey Projects
Know Exactly Where You Stand
Get tailored, site-specific engineering geology and geophysics from experts on the Pacific Northwest.