Key Personnel

Stephen Eagar, PE

Principal and Owner

Stephen is the Principal and Owner of Central Geotechnical Services and has worked as an engineer and project manager for over 15 years.  A combination of both private and public experience, he has worked on projects in many categories (vertical, horizontal, earthwork, sediment retention, levees, dams) and served in Afghanistan as an engineer for the US Army Corps of Engineers in 2011.  Work experience encompasses aspects of projects, from concept to completion in multi-disciplinary roles including project initiation, design, bid/award, construction observation, and remote liaison project coordination at the Congressional level.

Paul Crenna, CEG, LEG, LHG

Principal Engineering Geologist

With over 26 years of consulting experience, Paul brings guidance to each project, with a “big-picture” perspective involving the geological implications of the geotechnical design process.  Paul has been involved with projects large and small.  He has performed geotechnical investigations in sensitive areas and is considered a slope stability analysis expert.  He has provided forensic analysis and expert witness services in cases involving adverse soil conditions and foundation drainage. Paul is also licensed as both a Licensed Engineering Geologist and a Licensed Hydrogeologist in Washington State.

Jose Serrano, PE

Associate Engineer

With over 11 years of experience, Jose has worked on the West Coast as well as across the Midwest. He brings his knowledge of various types of deep and shallow foundations including spread/continuous footings, mat slabs, drilled shafts/caissons, and pile foundations. Now at Central Geotech, Jose oversees geotechnical investigations, provides foundation recommendations, reviews reports and construction documents, and mentors entry-level engineers. Jose is licensed in California, Oregon, Illinois, and Indiana.

Kyle Warren

Staff Geologist/Field Operations Coordinator

Kyle has Junior-level engineering experience, including field exploration and assessment work, writing reports for various types of design projects, and performing engineering calculations for design with minimal oversight.  Kyle has additional experience in the field as a soils technician, performing construction observation and special inspection on construction sites to include fill placement, compaction guidance, and testing, and earthwork construction streamlining.

Erik Fulmer

Staff Geologist/Geophysicist

After graduating with a BS in Geophysics from Western Washington University, Erik began his career working with a geotechnical engineering firm in Bellingham, Washington.  His time in Washington has provided him with an impressive amount of experience providing a variety of geotechnical services on a diverse set of projects.  Erik now coordinates and performs geotechnical investigations and construction observation services for a wide range of Central Geotech’s projects. He enjoys working with project stakeholders and design teams from project conception to its completion.

Amanda Olson

Operations Manager

As the Operations Manager, Amanda is at the center of the firm. She graduated Magna Cum Laude from Oregon State University with a degree in Merchandise Management and has a background in Marketing and Project Management. At Central Geotech, Amanda manages administrative and human resource tasks, schedules Engineers/Geology staff, and interacts directly with clients.  Developing, implementing, and reviewing operational policies and procedures are responsibilities she upholds to make sure the operations of the firm are running efficiently.

Amber Weber

Business Development Manager

Amber graduated from Oregon State University with a BS in Media Communications and is currently halfway through receiving her MBA from Southern Oregon University. Prior to joining the Central Geotech team, she worked in marketing and sales positions throughout different industries. Now, as the Business Development Manager for Central Geotech, Amber is involved in proposal writing, and design for Public and Private contracts, client organization, and retention along with developing new business practices, and manages the firm’s marketing department.

Holly Walden

Marketing Coordinator

Holly graduated from the University of Oregon with a BA in Public Relations. She has a background in social media management as well as customer service. As the Marketing Coordinator, Holly helps maintain the firm’s online social presence and assists in various marketing responsibilities to aid our Business Development Manager, Amber. Holly recently obtained her FAA remote pilot certification to operate our drone for marketing photography and field reconnaissance.

Mitch Friedman

Construction Manager

Mitch joined Central Geotech in 2020 with 15 years of prior geotechnical field experience. His knowledge of managing large commercial construction projects, working in soil laboratories, and being on-site during drilling makes all phases of a project run smoothly. Mitch’s responsibilities include assisting Staff Geologists with all project documentation such as Phase III project schedules and reports, acts as the point of contact on all active construction observation job sites for Central Geotech, and performs Phase III tasks such as compaction and asphalt testing when needed.

Colin Jones

Geotechnical Field Technician

As a Field Technician, Colin has a broad spectrum of responsibilities throughout all phases of construction. Initially, conducting site reconnaissance and gathering various types of data through testing and observation as part of exploratory and investigative fieldwork, then later performing construction observation in order to ensure client adherence to the recommendations of Central Geotech’s engineers and design team. Additionally, Colin assists with work in our soils laboratory and performs other in-house tasks such as maintaining our sample and equipment inventories.

Josh Williamson

Geotechnical Field Technician

As a Field Technician, Josh has a broad spectrum of responsibilities throughout all phases of construction. Initially, conducting site reconnaissance and gathering various types of data through testing and observation as part of exploratory and investigative fieldwork, then later performing construction observation in order to ensure client adherence to the recommendations of Central Geotech’s engineers and design team. Josh brings over 5 years of experience in excavating as well as knowledge of heavy machinery and mechanics.


We Service Clients From Alaska to Afghanistan.

Portland
10240 SW Nimbus Ave.
Suite L6
Portland, Oregon 97223
(503) 616-9419 Icon image for info More Info

Anchorage
1120 Huffman Rd
Suite 24-474
Anchorage, Alaska 99515
(907) 313-3370 Icon image for info More Info

Get In Touch

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We serve a variety of clients and markets.