Specifications include, but are not limited to: The South Dakota Department of Transportation wishes to solicit proposals for the maintenance and care of the “Glacial Lakes” single site interstate rest area located on Interstate highway 29 at milepost 250.5. Grass shall be mowed when the average height reaches 10 and it shall not be mowed shorter than 4 inches. The contractor will be responsible for mowing and litter pickup in the area between the rest area and the interstate, unless informed otherwise. b) Weed Control (1) Hand cutting, pulling and selective spraying shall be done as necessary to control weeds. Noxious weeds will be sprayed in the spring and fall. The Region will furnish the herbicide to be used. Care should be taken so desirable vegetation, flowers, shrubs, trees, etc., are not damaged by spraying. The Region will hire professional pesticide applicators or do the spraying with State forces. 3. Trees and Shrubs a) Cultivation (1) Cultivation of tree belts shall be done as necessary to eliminate vegetation but, a minimum of three times during the growing season. 6 (2) Individual trees and shrubs shall be cultivated to maintain an area 6 feet in diameter that is free of vegetation. The outer edge of the cultivated area should be diked to hold water. Cultivation shall continue until the Region determines that the practice will no longer be necessary. b) Watering The watering of tree belts will not be required. Individual trees and shrubs that are located within the lawn sprinkler area will normally not need to be watered separately. Individual trees and shrubs located outside the lawn sprinkler area shall be watered as necessary to keep them healthy. During wet seasons they may require no additional water, during dry periods they should be watered heavily approximately every two weeks. Watering should continue for 5 or 6 years after planting. 4. Walks, Parking Areas and Drives a) Walks Walks shall be swept as necessary to keep them neat and clean. Snow and ice shall be removed from walks as soon as weather conditions permit. Chemicals such as salt or calcium chloride may be used to remove ice and snow-pack but, care should be exercised so the walk surface or adjacent vegetation is not damaged. Vegetation, accumulated dirt and debris shall be removed from cracks in the sidewalks as needed. b) Parking Areas and Drives Parking areas and drives shall be cleaned as necessary to remove litter and prevent unsightly conditions. The Department will remove snow and ice from the parking areas and drives as soon as possible after a storm abates. 7 Picnic Shelters Picnic table and shelters should be inspected daily for unsafe, unsightly or unsanitary conditions, such as broken glass, structural defects, graffiti, food spills, stains, etc. Any of these conditions should be corrected immediately. During peak traffic seasons, top of picnic table, cooking tables, benches and picnic table pad may require cleaning several times a day. During off season they should be cleaned as necessary with a minimum of once per week during time when picnic tables are being used.
