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Business Details
45 Years
experience
Trusted Civil Engineering and Land Surveying Services in Eureka, CA
Omsberg & Preston, established in 1981, is a woman-owned consulting firm specializing in surveying, engineering, and land planning services along California's north coast. Our firm, originally founded by Kenneth J. Omsberg, Jr., P.E., P.L.S., and now led by Kimberly D. Preston, P.E., P.L.S., prioritizes quality project planning, permit processing, and civil engineering solutions tailored to client needs. We maintain rigorous quality control measures across all projects, ensuring adherence to professional standards while fostering strong relationships with local, state, and national agencies. Our commitment to precision and innovation enables us to deliver cost-effective, timely results for commercial, industrial, and residential developments. With decades of combined experience, we approach every project as if it were our own, leveraging deep regional expertise to address unique coastal challenges.

Our services integrate feasibility studies, subdivision engineering, grading design, and comprehensive land surveying, supported by advanced technologies like GPS and aerial mapping. We specialize in navigating complex regulatory requirements, offering end-to-end support from initial planning to construction inspection. Client satisfaction remains our highest priority, demonstrated through repeat partnerships and a track record of successful project completions within budget and schedule constraints. Our team's technical proficiency and dedication to ethical practices have solidified our reputation as trusted advisors in Humboldt County and surrounding areas. Whether managing large-scale infrastructure or small private developments, we combine technical excellence with personalized service to meet evolving client demands.
Services
Land Surveying Civil Engineering Subdivision Engineering Grading Design Permit Processing Construction Inspection Flood Elevation Certification Aerial Mapping Erosion Control Planning Boundary Surveys
Details
  • Year established: 1981
Highlights and features
  • We offer 40+ years of combined experience in coastal engineering and surveying.
  • Our firm maintains rigorous quality control and assurance measures for every project.
  • We have built trusted relationships with local, state, and national regulatory agencies.
  • Our woman-owned business provides tailored solutions for Humboldt County's unique challenges.
  • We combine advanced technologies with traditional expertise for precise results.
Associations and certifications
  • Professional Engineer (P.E.)
  • Professional Land Surveyor (P.L.S.)
Services
Land Surveying
Our land surveying services combine traditional expertise with modern technologies like GPS and aerial mapping. We conduct boundary surveys, topographic analysis, and construction staking for residential, commercial, and infrastructure projects. Our team prepares legal descriptions, subdivision maps, and ALTA/ACSM surveys, ensuring compliance with state and federal standards while supporting accurate property development decisions.
Civil Engineering
We provide comprehensive civil engineering solutions including street improvements, utility systems, and stormwater management. Our engineers design water and sewer infrastructure, ADA-compliant sidewalks, and erosion control plans. We prepare construction documents, cost estimates, and regulatory submittals, focusing on sustainable solutions that balance technical requirements with environmental considerations for northern California's coastal conditions.
Subdivision Engineering
Our subdivision engineering services cover feasibility studies through final map preparation. We handle parcel mapping, condominium plans, and lot line adjustments, coordinating with local agencies to ensure regulatory compliance. The team designs grading plans, drainage systems, and infrastructure improvements required for residential and commercial developments, streamlining the approval process while maintaining project budgets.
Permit Processing
We specialize in navigating complex permitting requirements for coastal projects. Our services include preparing environmental reports, stormwater pollution prevention plans, and FEMA elevation certificates. We coordinate with reviewing agencies to secure necessary approvals, ensuring projects meet federal, state, and local regulations while minimizing delays through proactive agency relationships established over four decades.
Construction Inspection
Our construction inspection services ensure project adherence to design specifications and regulatory standards. We monitor grading, utility installation, and structural elements, maintaining quality control through detailed as-built documentation. The team provides progress reporting, material testing, and compliance verification, working closely with contractors to resolve field issues while preserving project timelines and budget parameters.
People
Kimberly D. Preston
Sole Proprietor, Professional Engineer, Professional Land Surveyor
Kimberly D. Preston leads Omsberg & Preston as sole proprietor since 2007, bringing over 35 years of coastal engineering and surveying expertise. She specializes in land use planning and regulatory compliance, maintaining the firm's commitment to quality while expanding technical capabilities through modern surveying technologies and sustainable design practices.
Kenneth J. Omsberg, Jr.
Founder, Professional Engineer, Professional Land Surveyor
The late Kenneth J. Omsberg, Jr. established the firm in 1981, pioneering engineering solutions for California's north coast. His legacy continues through rigorous quality standards and community-focused design principles that remain central to the firm's approach under Kimberly Preston's leadership.
Questions
What geographic areas do you serve?
We primarily serve Humboldt County and California's north coast region, with experience extending to surrounding counties for specialized projects.
What engineering services do you offer?
Our civil engineering services include infrastructure design, stormwater management, subdivision development, ADA compliance, and construction oversight for public and private projects.
How do you handle regulatory permitting?
We prepare environmental reports, stormwater plans, and FEMA certifications while leveraging agency relationships to streamline approvals for coastal projects.
What surveying technologies do you use?
We employ GPS surveys, aerial mapping, and traditional boundary techniques to deliver precise measurements for land development and legal documentation.
Can you assist with construction phase services?
Yes, we provide construction inspection, material testing, and as-built documentation to ensure projects meet design specifications and regulatory requirements.