Consulting Civil Engineers + Surveyors + Land Planners
With over 40 years of experience
We’ve helped shape the development of Napa Valley
At RSA+, we harness the power of teamwork to provide top-tier civil engineering and surveying services.
Established in 1980, we are one of Napa Valley's most respected and experienced engineering firms, delivering expert solutions through collaborative effort and specialized knowledge.
Now open in Lakeport
Now open in Lakeport
Select Projects
Our Team Leaders
Hugh Linn
President RSA+
Christoper Tibbits
Vice President RSA+
Jeremy Sill
Associate Principal RSA+
Paul Warnock
Associate Principal, RSA+
Our Services
At RSA+, we offer a comprehensive suite of civil engineering, land surveying, and project management services designed to meet the diverse needs of our clients. Our expertise ensures seamless navigation through every project phase, from initial concept to final completion with a dedication to compliance and quality.
Civil Engineering and Surveying:
Use Permits & Entitlements
Building Permits & Permit Assistance
Hydrology, Stormwater & Pollution Control
Floodplain Management.
Code Compliance & Enforcement Resolution
Ongoing Support Services:
Reporting, Testing & Monitoring
Project Management
Permit Processing
Wastewater & Septic Design
Qualified SWPPP Developer (QSD), Qualified SWPPP Practitioner (QSP) & SWPPP Implementation
Our team's commitment to excellence and deep understanding of local regulations ensure that every project achieves its fullest potential, adhering to the highest standards of safety, efficiency, and environmental stewardship.
Every client is unique. That's why we offer customized services that meet your specific needs. Embark on your next project with confidence.