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ON TIME, ACCURATE, AND CONFIDENTIAL
Duryea & Associates, a division of DCI Engineers, provides Professional Land Surveying and Mapping Services for Commercial, Industrial and Multi-Family projects throughout the Western United States. This dedicated team of surveyors strives to provide these services with the highest standards for professional and personal ethics.
We understand the importance of meeting fixed deadlines and defined project timelines, assigning a single surveyor as the primary point of contact from initial coordination through final deliverables to maintain a streamlined process that supports efficient execution and on‑time completion. Surveyors oversee each project from start to finish to ensure accuracy and compliance with all applicable requirements, identifying potential issues early and communicating them promptly so concerns can be addressed proactively and project momentum maintained through completion. We also recognize that real estate and infrastructure projects require discretion. Field staff are directed to route all on‑site inquiries through the main office to protect confidential information and ensure controlled, consistent communication.

Licensed throughout the western United States, including California, Oregon, Washington, Idaho, and Montana, our team supports projects across multiple jurisdictions with consistent standards and responsiveness!
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We provide land title surveys for commercial, industrial, and multi-family real estate, covering nine states in the western U.S.: Washington, Oregon, California, Idaho, Montana, Nevada, Oklahoma, New Mexico, and Hawaii.
We work with developers, architects, and our in-house engineers to ensure a complete, accurate, and on-time design survey. With one surveyor assigned to your project from start to finish, we ensure an efficient and cost-effective survey to match your budget and schedule.
We work with school districts in California for their survey needs during the School Facility Improvement District Process (SFID). We know the regulations and documentation requirements, and we work to make sure our survey is complete, on-time, and within budget.
Our team also provides Subdivision & Condominium Surveys, Flood Studies, and Cell Tower Surveys throughout our service area.

DCI is a civil & structural design firm with industrial, bridge, right-of-way and sustainability services.
We're passionate about providing solutions for our industry partners, no matter the project size, scope or materials – from the tallest concrete residential building west of the Mississippi to athletic stadiums throughout the country, DCI does it all.