Business Details
47 Years
experience
Engineering & Geologic Solutions for Northern California
SHN Engineers & Geologists has been delivering engineering and geologic solutions to communities in Northern California and Southern Oregon since 1979. Our team combines decades of regional experience with innovative technologies to address complex infrastructure and environmental challenges. We specialize in civil engineering, geosciences, environmental remediation, and materials testing, with a focus on trenchless technologies, low-impact design, and geohazard mitigation. Our staff's deep familiarity with local environmental and regulatory conditions ensures efficient project execution and long-term sustainability. As a privately held company, we prioritize long-term client relationships and community impact over short-term gains.Our cross-trained professionals maintain direct communication channels with clients, reducing bureaucracy and accelerating decision-making. We hold AASHTO-accredited materials testing laboratories in California and Oregon, ensuring quality control for construction projects. Our commitment to sustainability is reflected in our LEED-certified projects and community engagement initiatives. With offices in Eureka, Redding, Coos Bay, and Klamath Falls, we provide rapid response capabilities across our service region. Our leadership in geotechnical slope monitoring and coastal infrastructure projects demonstrates our technical expertise and adaptability to challenging environments.
Services
Civil Engineering
Environmental Remediation
Geotechnical Assessments
Materials Testing
Biological Surveys
Surveying Services
Permitting Assistance
Geohazard Mitigation
Low Impact Design
Construction Management
Details
- Year established: 1979
Highlights and features
- We offer 45+ years of regional engineering and geologic expertise
- Our AASHTO-accredited materials labs ensure construction quality control
- We pioneered trenchless technology applications in sensitive environments
- Our staff maintains direct communication with project stakeholders
- We combine private ownership flexibility with institutional knowledge retention
Associations and certifications
- AASHTO Accreditation Program
What people say
Technical expertise
Regional knowledge
Innovative solutions
Regulatory navigation
Long-term relationships
Services
Civil Engineering
Our civil engineering team specializes in water and wastewater systems, trenchless technologies, and low-impact development solutions. We deliver transportation infrastructure, site development, and coastal engineering projects that balance functionality with environmental stewardship. Our expertise in mechanically stabilized embankments reduces construction costs while maintaining structural integrity.
Environmental Remediation
We provide comprehensive environmental services including Phase I/II assessments, hazardous materials remediation, and Brownfield redevelopment. Our team employs innovative techniques like passive remediation and chemical oxidation to address contamination while maintaining regulatory compliance through real-time field analysis and monitoring.
Geotechnical Assessments
Our geoscience experts conduct detailed subsurface investigations and slope stability analyses using advanced technologies like horizontal directional drilling and high-resolution trench photography. We specialize in fault rupture hazard evaluation and coastal geology studies, providing practical solutions for complex geotechnical challenges in challenging terrain.
Materials Testing
AASHTO-accredited laboratories in Eureka and Willits support our materials testing services, which include concrete inspection, asphalt sampling, and soil compaction testing. Our certified technicians perform special inspections for structural components, ensuring compliance with building codes and construction standards across California and Oregon.
Biological Surveys
Our biological services focus on wetland delineation, endangered species assessments, and aquatic organism passage studies. We conduct nesting bird surveys and develop mitigation plans that minimize environmental impacts while maintaining project viability through avoidance strategies and habitat restoration programs.
People
Walter White
Regional Manager
Licensed Professional Land Surveyor with extensive experience in spatial services and surveying operations across Oregon. Leads SHN's surveying teams while maintaining active involvement in local community sports organizations.
Anders Rasmussen
Regional Manager
Senior Engineer with specialized expertise in geotechnical assessments and infrastructure projects. Oversees SHN's Klamath Falls operations while providing technical leadership for complex engineering challenges in rural and urban environments.
Tom Gallup
Senior Surveyor
Professional Land Surveyor bringing public sector experience to SHN's California surveying operations. Focuses on training and development while implementing innovative surveying methodologies for infrastructure and land development projects.
Questions
What geographic areas do you serve?
We primarily serve Northern California and Southern Oregon, with offices in Eureka, Redding, Coos Bay, and Klamath Falls.
What engineering specialties do you offer?
Our core services include civil engineering, geotechnical assessments, environmental remediation, materials testing, and biological surveys.
Are your materials testing labs certified?
Yes, our Eureka and Willits laboratories hold AASHTO Accreditation Program certification for construction materials testing.
How do you handle environmental compliance?
We maintain expertise in NEPA, CEQA, and Clean Water Act regulations, providing comprehensive permitting and compliance solutions since 1979.
What construction monitoring services do you provide?
Our services include special inspections for structural components, concrete testing, asphalt sampling, and field compaction testing across multiple states.
