In 2011, DDI is celebrating 20 years in business - a woman owned & operated business serving residential, industrial, commercial, & municipal customers in civil engineering, land surveying, construction stakeout, foundation design, subdivision development, site plans, environmental assessments, geo-technical & soil testing, & drafting {civil, mechanical, structural, & electrical}. DDI has worked in KY, TN, IN, Base at Fort Campbell & Fort Knox aiding in the construction of new Barracks, Command Buildings, Justice Centers, Detention Centers, Physical Fitness Buildings, new & new additions to Industrial Plants - Aluminum, Automotive, Processing, Recycling Plants. Surveying 1500+ Acre farms, design subdivisions, sport complexes, water tanks, pump station & layout water/wastewater lines.