In a Roadway Maintenance Program: In an assigned sub-state district facility, or a statewide operations program for pavement markings, paving or drainage, to supervise maintenance crew assignments, such as road cleaning and, as required cleaning and building catch basins, culverts, ditches, gutters or other road or related drainage facilities; making, repairing and painting guard rails; pavement marking and stripping; preparing materials for paving, road patching and patching and/or oiling roads and road shoulders; cutting brush and grass; cutting expansion joints or cement roads; stacking and burning or otherwise disposing of brush, grading road shoulders; screening and piling sand; erecting snow fences; installing plows and sanding devices on trucks; sanding icy highways, plowing snow from highways; and to perform other maintenance activities. In a Landscape Maintenance Program: To supervise roadside and landscape maintenance activities in the state highway system; to plan, coordinate and supervise the work of a crew engaged in a highway beautification maintenance program and in roadside development; to supervise the spreading of fertilizer, lime and other chemicals over selected areas, the shearing and pruning of evergreens and trees, and the clearing of brush and the removal of trees on state property; to direct the work done by a crew engaged in litter cleaning, weed control, spraying for plant disease and poison ivy control, and other highway beautification and roadside projects; to assist in maintaining a perpetual inventory control record of all tools, chemicals, and equipment and other state property assigned for use in landscape maintenance.