Delon Hampton & Associates, Chartered (DHA), is a professional consulting engineering firm specializing in civil and structural engineering, as well as program and construction management. Our market sectors include transportation, transit, aviation, water/wastewater, and land development/buildings. Demonstrating engineering excellence for more than 40 years nationally, we take pride in a tradition of providing high quality services to our federal, state, and local governmental clients, as well as the private sector. We are headquartered in Washington, DC with offices in Largo, Silver Spring and Baltimore, MD. We have local and minority certifications with several states and municipalities.