Our Philadelphia office includes the services of the former Valley Forge Laboratories, Inc., now a fully integrated part of GAI's Philadelphia operations. Our Philadelphia office is a full service design and construction services office. Our specialties and strengths in Philadelphia include Traffic and Transportation Engineering, Geotechnical Engineering, Environmental Engineering including Noise Analysis & Design and Construction Engineering & Inspection. From Philadelphia we service a full range of public and private clients in the transportation, municipal, land development and energy industries. Our Philadelphia office also has a complete materials testing laboratory and a full compliment of destructive and non-destructive testing equipment for sampling, investigations, analyses and certification of concrete, bituminous, steel and soil.

Driving Directions

From PA Turnpike

From Center City Philadelphia and Amtrak’s 30th Street Station

From Philadelphia Int'l Airport

From Route 422 & Montgomery Co.

From Route 202 N & Chester Co.

From Media and Delaware Co.