The work consists of removing selected living trees and undesirable living undergrowth from areas of the right of way from the top of cut slopes to the bottom of the fill slopes within the limit of the equipment. Equipment: The contractor shall provide a minimum of 2 Mowers. No flail mowers are allowed. The contractor shall provide tractors equipped with a minimum of 2 outside blinking amber lights, visible from both directions and one top of the cab mounted amber rotating light, visible from both directions. Furnish, mount, and maintain a “Caution Mower” (W10-11) sign on the rear of each tractor. Display company name prominently on tractor. Provide mowers with a reach, from the centerline of the tractor, for a minimum of 20 feet to the outermost tip of the mowing blade. Provide shields on mowers which preclude foreign objects from being thrown out from the cutting unit enclosures. The contractor shall provide chipper capable of processing vegetation 5 inches or less in diameter. All equipment shall be in good operating condition and shall be operated by properly trained and qualified personnel.