SDA is a Civil Engineering, Project Management and Planning Company founded in 2003. We are a guided by four licensed professional engineers with nearly 60 years’ experience. SDA provides civil engineering services for a wide range of project types and clients including transportation, public works, commercial, retail, residential, multi-family, industrial, mining operations, and design-build projects of all types. We frequently team with owners, architects, contractors and developers to provide creative solutions to complex challenges. Please explore our site and contact us anytime for guidance on your project.