O.L. Thompson Construction OLTC is a Charleston, SC based sitework construction company. Serving the Tri-county area since 19 ... 48, our main emphasis is in the area of site development. Our current scope of work includes demolition, clearing, grubbing, excavation, storm drainage, sanitary sewer, potable water, concrete, curbing, stone base, and asphalt paving. In essence we have the capabilities to perform a turnkey operation in the area of site development. "Fast Track" is a way of life for us. Our typical projects involve construction of private development projects, public and government projects, operation of private landfill, and commercial development. Previous sitework project costs range from a few thousand dollars to in excess of 18 million dollars. We are a licensed General Contractor (Highway, Unlimited) in North and South Carolina read more