Herrera brings together scientists and engineers under one roof, to provide a wide range of services to our clients. Herrera’s technical staff is supplemented by a full support staff, providing the needed capacity for timely and efficient project completion. Herrera’s in-house resources include engineering graphics, computer-aided design (CAD), geographic information system (GIS) analysis and mapping, technical editing, statistical analysis, and computer modeling. The firm has built an excellent record of meeting project schedules and budgets, and achieving client satisfaction.