In 1984, Lehigh Engineering Associates Inc. (LEA) was formed. While specializing in the field of Traffic Engineering, our firm also provides a variety of civil engineering services. These would include land surveying, subdivision design, residential & commercial land developments, septic design, and traffic studies. Lehigh Engineering Associates, Inc. has provided traffic engineering services for several municipalities including: Lower Macungie Township, Upper Saucon Township, Whitehall Township and the City of Allentown in Lehigh County; Palmer Township and the City of Easton in Northampton County.