Specifications include, but are not limited to: a) The Contractor shall be responsible for mowing all grassed areas, including all trimming at each location. Grass mowing shall be performed at each site at intervals of no earlier than fourteen (14) calendar days unless otherwise directed by the Contract Administrator or VDOT Representative. The grass shall be mowed to a height of between two (2) and two and one-half (2 ½) inches. b) The entire site shall be thoroughly inspected, and all trash and debris removed prior to the start of any mowing activities. No trash or debris is to be cut up at any time during mowing operations. All sidewalks shall be swept or air blown clean of all debris immediately after each mowing. c) Trimming around all permanent objects such as trees, shrubs, posts, fences, car stops, light poles, sidewalks, and curbs shall be performed with suitable mechanical equipment at the time the turf area is mowed. All trimming shall be at the same cutting height as the rest of the turf areas. Only hand weeding during each moving and No herbicides are to be used without the written permission of the VDOT Maintenance Division. d) Mowing patterns shall be such that the cut grass is evenly distributed, and not windrowed into noticeable deposits. Grass clippings shall not be allowed to accumulate onto hard surface areas, sidewalks, roadways or parking lots. Grass clippings shall not be blown into shrubs or planting beds or onto parked vehicles. The cutting height shall be uniform, and the mowed areas shall not show signs of scalping. The abrasion or damage to the bark of trees, shrubs and other plants due to mowing operations shall not be permitted.