ITEM 410 TRAFFIC COMPACTED SURFACE
410.01 Description. This work consists of furnishing and placing an aggregate wearing course
on the completed and accepted subgrade or temporary road.
410.02 Materials. Furnish materials conforming to 703.18 for the type of material specified
(Type A, Type B, or Type C).
410.03 Conditioning of the Subgrade. Eliminate wavy and irregular surfaces and maintain the
subgrade in this condition until the application of material under this item. If the subgrade is soft due to rain, frost, or snow, place material only as permitted.
410.04 Spreading and Shaping. Uniformly spread the material using an approved spreader box
or by other methods. Spread the amount of material shown on the plans or as directed by the Engineer. After spreading, blade and shape the materials to the specified cross -sections. Haul the material to its place on the road over the previously spread material. Conduct the hauling to obtain uniform compaction over the entire width of the surface material without rolling.
410.05 Maintaining. After shaping the material, blade it as directed by the Engineer . Open the
road to traffic immediately after all the material has been spread and shaped. Correct all holes, ruts, defects, or soft places that occur in the subgrade or surface by adding material and dragging. Maintain the surface, slopes, shoulders, ditches, and drainage structures until the work on this item has been completed and accepted.
410.06 Method of Measurement. The Department will measure Traffic Compacted Surface,
Type ___ by the number of cubic yards or tons of accepted material placed, shaped, and maintained as specified. The Department will measure the cubic yards of aggregate used loose in the vehicle at the point of delivery or calculate it by converting from weight using the following conversion factors: TABLE 410.06-1 Material Conversion Factor Gravel, bank run or crusher run 2700 lb/yd³ Limestone, crusher run 2500 lb/yd³ Gravel, Size No. 4 and 57 2500 lb/yd³ Limestone, Size No. 4 and 57 2400 lb/yd³ Crushed slag [1] less than 80 lb/ft³ 2000 lb/yd³ 80 to 90 lb/ft³ 2100 lb/yd³ 90.1 to 100 lb/ft³ 2300 lb/yd³ 100.1 to 125 lb/ft³ 2700 lb/yd³ more than 125 lb/ft³ 3000 lb/yd³ Recycled Portland Cement Concrete 2250 lb/yd³ Reclaimed Asphalt Pavement 2650 lb/yd³ [1] Based on average dry rodded weight determined by the Laboratory. The conversion factors listed are the long gradation weights. These numbers are based on the dry rodded weights of Nos. 67, 57, or 8 gradation. The Department will determine slag weights base d on weights obtained from the original source. The Department will classify salvaged or mixed materials according to the material that makes up the majority of the mixture. Ensure that the moistures of the delivered material are less than 2 percent above saturated surface dry condition; if not, the Department will base payment on the dry densities and dry weights. Furnish freight bills, and weight and volume evidence according to 109.
410.07 Basis of Payment. The Department will pay for accepted quantities at the contract prices
as follows: Item Unit Description 410 Cubic Yard or Ton Traffic Compacted Surface, Type A or B 410 Cubic Yard or Ton Traffic Compacted Surface, Type C
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