Business Details
36 Years
experience
Trusted Civil Engineering Services in Seattle
At Duncanson Company, we bring 25 years of dedicated expertise to civil engineering, surveying, and land planning services. Founded in 1990, our firm serves both private and public sector clients across Washington, Oregon, and Idaho. Our team specializes in delivering comprehensive solutionsfrom preliminary site assessments to project completionwith a focus on precision and client collaboration. We pride ourselves on maintaining strong ethical standards, clear communication, and meticulous organization throughout every project phase.Our experience spans diverse sectors, including residential developments, municipal infrastructure, and commercial sites. By combining technical proficiency with a client-centric approach, we ensure that each project meets regulatory requirements while aligning with our clients' unique goals. Our commitment to quality has established us as a trusted partner in the Pacific Northwest's engineering community.
Services
Site Development
Boundary Surveys
Land Planning
Municipal Road Design
Drainage Analysis
Subdivision Planning
Topographic Surveys
Erosion Control
Wastewater Design
Construction Staking
Details
- Year established: 1990
Highlights and features
- We offer 25 years of specialized experience in Pacific Northwest land development projects.
- Our team provides end-to-end services from feasibility studies to project completion.
- We maintain strict adherence to ethical standards and transparent communication practices.
- Our engineers and surveyors deliver solutions for complex municipal and commercial sites.
- We combine technical expertise with client-focused project management approaches.
Services
Site Development
We provide comprehensive site development solutions including grading, drainage design, and utility planning. Our engineers create compliant layouts for residential subdivisions and commercial properties while addressing environmental constraints. With expertise in municipal infrastructure requirements, we ensure projects meet regulatory standards while optimizing land use efficiency.
Boundary Surveys
Our ALTA/ACSM surveys establish precise property boundaries for real estate transactions and development projects. Using advanced GPS technology, we identify easements, encroachments, and legal descriptions. This critical information supports land acquisitions, title insurance requirements, and conflict resolution for both private and public sector clients.
Land Planning
We develop strategic land use plans that balance client objectives with regulatory requirements. Our planners address zoning constraints, environmental protections, and infrastructure needs. From short plats to comprehensive development plans, we create viable solutions that maximize property value while ensuring compliance with local jurisdictional standards.
Drainage Analysis
Our hydraulic engineers design effective drainage systems for urban and rural environments. We create stormwater pollution prevention plans, detention basins, and biofiltration systems that comply with environmental regulations. By analyzing watershed characteristics and rainfall patterns, we develop sustainable solutions that mitigate flooding risks and protect water quality.
Construction Staking
We provide precise field layout services for infrastructure projects using advanced surveying equipment. Our team marks critical points for grading, utilities, and structures to ensure accurate construction. This service maintains dimensional control throughout the building process, reducing costly errors during project implementation.
People
Paul Nelson
Party Chief
Paul Nelson leads survey teams with 15+ years of field experience. He specializes in complex boundary determinations and construction layout projects. His expertise ensures accurate data collection for major infrastructure developments across the Pacific Northwest.
Questions
What geographic areas do you serve?
We provide engineering and surveying services throughout Washington, Oregon, and Idaho.
What types of clients do you work with?
We serve builders, developers, homeowners, architects, and government agencies with land development needs.
How long have you been in business?
We've delivered engineering solutions since 1990, celebrating 25 years of service in 2015.
What project phases do you handle?
Our services cover all stages from initial feasibility assessments through final construction documentation.
