The Columbia County Public Works Department is responsible for the construction and maintenance of roads and bridges in the local area. The department also provides reconditioning and resurfacing services for existing roads and streets. In addition, it offers a range of drainage, mowing and grading services. The Columbia County Public Works Department also plans grading schedule and oversees road construction contracts. Additionally, it provides construction and maintenance services for storm water drainage systems. The department owns and operates a sign shop that manufactures and installs regulatory and warning signs on public roads. The Columbia County Public Works Department also manages a mechanic shop that offers maintenance services for vehicles and heavy equipment. The department is located in Lake City, Fla.