Work under this item shall consist of one or more courses, each course not exceeding four inches in thickness after final compaction, on the prepared subbase in accordance with these specifications.
The materials for this work shall conform to the requirements of State Form 810, Article M.05.01.
A. 
Coarse aggregate shall be either gravel or broken stone, at the option of the contractor. However, only one type of coarse aggregate shall be used within a single subdivision.
B. 
The aggregate for each course shall be spread uniformly upon the prepared subbase directly from approved spreader or stone boxes, to a depth that will have a depth of four inches after final compaction. Power graders shall not be permitted to spread the aggregate. After the aggregate is spread, it shall then be thoroughly compacted, and during the compacting, water shall be applied from an approved watering device by a vertical spray delivering a flushing stream.
C. 
The compacting and wetting shall be continued until the voids in the aggregates have been reduced to the minimum obtainable. The compacting shall be continued until the course is thoroughly compacted to a firm and uniform surface satisfactory to the Town Engineer.
D. 
Brooms shall be used during the wetting and compacting to distribute any fines uniformly over the surface.
E. 
The subbase shall be maintained true to line and grade at all times, at least 200 feet in advance of the unbound course. Depositing aggregate more than 500 feet ahead of the compacting operation will not be permitted at any time, and all aggregate shall be completely compacted and bound at the end of each day's work when the road is open to traffic of any kind.
F. 
Should the subbase material become churned up or mixed with the processed aggregate base at any time, the contractor shall remove the mixture, reshape and compact the subbase and replace the material removed with clean, coarse material, which shall be compacted and wetted as specified above until thoroughly compacted to a firm, uniform surface.
G. 
Should any irregularities of surface develop during or after the compacting, they shall be remedied by loosening the material already in place and removing or adding coarse aggregate as required, after which the entire area, including the surrounding surface, shall be compacted, broomed and wetted and the compacting continued until it is compacted to a uniform surface.
H. 
All compacting shall be done with a power roller weighing not less than 10 tons or with an equivalent vibratory roller or compactor. The compacting shall begin at the sides and progress toward the center, parallel with the center line of the pavement, uniformly lapping each preceding track and covering thoroughly the entire surface. Areas of special cross slope shall be compacted beginning at the low edge and proceeding towards the high edge or as directed by the Town Engineer.