Since 1998, Terra Firma Engineering & Science has been providing quality civil engineering services to Scotts Valley, CA and the surrounding areas. As a locally owned and operated company, we strive to provide quality services while remaining reasonably priced, and dedicate to the clients best interests. Terra Firma Engineering & Science civil engineering company that offers comprehensive services for residential construction including structural design, driveways, retaining walls, bridges, grading, and drainage. The owner Marc is a P.E. registered civil engineer, and a proud member of the American Society of Civil Engineers.