Founded in 1982, Rinker Design Associates provides design and surveying services in residential land development throughout the northern Virginia community. Located in Manassas, Va., it provides consulting and design services for a variety of private, residential, industrial and commercial projects. The company provides services in transportation planning and design, traffic engineering, environmental consulting services, surveying, land planning, land development design and forensic engineering. Its land planning department provides its clients feasibility and density studies, parking evaluations, proffer interpretation, landscape plans and waiver requests. Its surveying services include surveys, such as boundary, topographic, as-built, horizontal and vertical control, route and house location. Its environmental services department identifies, assesses and documents environmental conditions. The department monitors construction sites for compliance with permit conditions and makes instantaneous recommendations to correct any deficiencies.