Actually we’re only 50 years young, but dirt is one of our passions...

We dig in the dirt, guiding clients through the Section 106 process while uncovering archaeological sites, discovering ancient artifacts and identifying soils that reveal ancient landforms.

We make dirt healthier by transforming brownfields into safe, useable sites through our expertise in geotechnical engineering, environmental engineering and land development.

We use dirt as a design tool through landscape architecture that transforms once undesirable sites into award-winning properties.

And we analyze the dirt by providing solutions in soil mechanics, foundation engineering, land surveying, laboratory testing and environmental permitting to support our energy and community infrastructures.

So even if we're not older than dirt, it was our first area of expertise when we were founded in 1958, and GAI's staff still can't keep their hands out of it. Our team of dedicated, innovative engineers and specialists has been working in the dirt for 50 years now, assisting clients in energy, water, transportation, real estate, industry and government.