Jackson and Tull began in 1974 as a civil engineering company specializing in the structural design of buildings. Examples of structural design projects in the Washington, DC region include: the historic Metropolitan AME Church; Prince George’s Plaza Subway Station, Parking Garage and Line Segment; and the Washington Convention Center. In subsequent years, Jackson and Tull grew to provide design, inspection, and program management services in the area of Civil Infrastructure, i.e., bridges, highways, transit systems, water supply, and wastewater treatment. Examples of civil infrastructure projects in the Washington, DC region include: Southwest Freeway Bridge over the Washington Channel; Whitehurst Freeway Bridge; various projects for the DC Water and Sewer Authority (DC-WASA); and various projects for the Washington Suburban Sanitary Commission (WSSC). Examples of projects in the New York City region include: the Manhattan Bridge, the Williamsburg Bridge and the Queens Midtown Viaduct Bridge.