The Public Works Department maintains and repairs almost 500 miles of paved county roads, 86 miles of unpaved county roads, over 32 bridge structures, and many culverts and storm drain pipes in the unincorporated area of the county. This department also mows all county rights-of-ways, maintains ditches, trims trees, and installs traffic signs. The department also issues driveway, utility encroachment, and timber permits, sells driveway pipe for installation within the county by private contractors, and performs preliminary plan reviews regarding new roads for county acceptance.