Specifications include, but are not limited to: Sweeping shall be done on all paved shoulder areas including the gore point areas and areas around traffic islands at all locations. Open shoulders, four foot or less in width will not be swept. Shoulders, four foot or less will be swept if they abut concrete median barrier, curb and gutter, or other fixed structure. Sweeping and/or cleaning shall be done on the following areas of highways listed in the Designated Roads Section: • Along all outside and median paved shoulders for the full length and width of the shoulder. • At all paved gore areas where interchange ramps converge and diverge from the thru traffic lanes for the full width of the gore. • Along all concrete median-barrier walls for the full length of the wall. • Along and under all median-barrier guard rails for the full length of the guard rail where the guard rail is located in a paved median. • Along all paved inside and outside shoulders of interchange ramps for the full length and width of the shoulder. • Along all pavements of interchange ramps at places where foreign matter has accumulated thereon. • Along all curbs in any of the above areas