At Draper Aden Associates, Lasting Positive Impact® is more than a slogan, it represents and embodies our core culture and be ... lief that each day gives us an opportunity to leave our mark on the world. With nearly 50 years of experience providing civil, environmental, geotechnical, solid waste, and structural engineering, surveying, and subsurface utility engineering, site planning and engineering, and construction inspection services throughout the Mid-Atlantic region, we more than just a set of plans; we are a way to achieve. read more