Kettelkamp

Located in Quincy, Ill., Klingner and Associates offers a wide range of professional services, including civil, environmental, geotechnical and structural engineering. The firm also provides architecture, planning, land surveying and geographic information systems. It offers services to individuals, industrial and commercial businesses, municipalities and government agencies. The firm has branch offices in Hannibal in Missouri and Burlington in Iowa. Incorporated in 1985, it offers a wide range of engineering services for the supply, treatment, transmission and distribution of water. The firm also provides the collection, treatment and reclamation of wastewater and drainage, levee district and flood control services. Klingner and Associates designs streets, highways, bridges and airports.