Business Details
47 Years
experience
Trusted Engineering and Environmental Services in Eureka, CA
SHN Engineers & Geologists has been delivering engineering and environmental solutions since 1979, serving communities across Northern California and Southern Oregon. Our team combines deep local knowledge with technical expertise in civil engineering, geosciences, and environmental compliance to create sustainable infrastructure and land development projects. With a horizontal organizational structure and 30% employee ownership, we prioritize direct client communication, innovative problem-solving, and long-term project viability.Our cross-trained professionals reduce project complexity while maintaining regulatory compliance and environmental stewardship. Recognized for client satisfaction awards and industry-leading trenchless technologies, we maintain a 80 Net Promoter Score through consistent on-time, on-budget delivery. Our commitment to sustainability extends to both project design and our rural office locations that balance professional rigor with quality of life.
Services
Civil Engineering
Environmental Services
Geosciences
Materials Testing
Biological Sciences
Surveying
Planning
Trenchless Technologies
Details
- Year established: 1979
Highlights and features
- 35+ years of regional engineering and environmental expertise
- Pioneers in trenchless technology and low impact design
- Employee-owned firm with 30% staff ownership stake
- 80 Net Promoter Score for client satisfaction
- Integrated approach combining engineering, geology, and biology
Associations and certifications
- AASHTO Accreditation Program
What people say
Excellent client communication
Innovative solutions
Deep regional knowledge
Timely delivery
Sustainable practices
Services
Civil Engineering
Our civil engineering team designs water and wastewater systems, transportation infrastructure, and land development projects using trenchless technologies and low impact design principles. We specialize in mechanically stabilized embankments that reduce environmental impact while lowering construction costs. Our services include construction management, stormwater management, and coastal infrastructure development for municipalities and private developers.
Environmental Services
We provide comprehensive environmental services including phase I-III site assessments, hazardous materials remediation, and regulatory compliance. Our team implements innovative solutions like passive remediation and monitored natural attenuation, achieving site closure in as little as four months. We specialize in Brownfield redevelopment and have completed remediation projects at 46 CAL FIRE sites using field-based analytical techniques for faster decision-making.
Geosciences
Our geologists conduct subsurface investigations, slope stability analyses, and fault rupture hazard assessments using advanced technologies like sonic drilling and cone penetration testing. We provide geotechnical engineering for infrastructure projects, including foundation design, liquefaction analysis, and coastal geology studies. Our team has extensive experience in landslide investigations and rockfall hazard assessment across Northern California and Southern Oregon.
Materials Testing
Our AASHTO-accredited laboratories perform materials testing for concrete, asphalt, soils, and construction materials. We provide special inspections for structural systems, including reinforced concrete and weld inspections. With labs in California and Oregon, we offer field testing services for compaction, torque testing, and on-site materials analysis to ensure construction quality and code compliance.
Biological Sciences
Our biologists conduct wetland delineations, endangered species assessments, and habitat restoration planning. We provide aquatic organism passage solutions, nesting bird surveys, and mitigation programs that minimize project impacts. Our team has managed biological monitoring for major infrastructure projects like the Willits Highway 101 Bypass, implementing salmonid relocation and Northern Spotted Owl protection programs.
People
Walter White
Regional Principal
Licensed Professional Land Surveyor with expertise in spatial services, drone technology, and GIS integration. Leads Oregon survey operations while mentoring staff through training programs that expand surveying capacity across the firm.
Anders Rasmussen
Regional Manager
Senior Engineer overseeing Klamath Falls operations with technical expertise in geotechnical engineering and project management for complex infrastructure developments in Southern Oregon.
Sheri Woo
Director of Business Development
Licensed Professional Engineer driving strategic growth initiatives from the Eureka headquarters, focusing on expanding client relationships and market opportunities across Northern California.
Jason Island
Regional Manager
Licensed Professional Engineer managing operations in Willits and Fort Bragg, specializing in local government projects and community-focused infrastructure development.
Bruce Grove Jr.
Regional Manager
Experienced engineering leader directing Redding office operations with focus on client relations and project execution for public sector clients in Northern California.
Questions
What geographic areas does SHN serve?
We primarily serve Northern California and Southern Oregon from our offices in Eureka, Redding, Fort Bragg, Willits, Coos Bay, Klamath Falls, and Lakeview.
What industries does SHN specialize in?
We work with cities, counties, state agencies, tribal governments, construction firms, hospitals, schools, and energy companies on infrastructure and environmental projects.
What makes SHN different from other engineering firms?
Our combination of employee ownership, regional expertise, and integrated services across engineering, geology, and biology creates unique value for clients.
Does SHN handle large-scale infrastructure projects?
Yes, we manage projects ranging from individual residences to multi-million dollar infrastructure developments including water systems and transportation networks.
Is SHN involved in environmental remediation?
We provide comprehensive environmental services including site assessments, hazardous materials remediation, and regulatory compliance for over 1,000 sites.
