Drainage Layer Clause Samples

Drainage Layer. Install the specified materials for drainage layers and filter fabric per the details shown in the plans. The bottom 6 inches of the drainage layer shall consist of size 10 NS sand (Georgia Department of Transportation Specification Section 801). The drainage layer shall consist of size no. 3 drainage aggregate to the depth specified in the plans and filter fabric shall be used to segregate the aggregate layer from the pea gravel/sod layer. All aggregates used in drainage layers shall be double washed and free of fines and organic materials. Protect drainage layers from contamination by foreign matter during installation. If drainage layers become contaminated or filter fabric is damaged, remove contaminated or damaged materials and replace them at no additional cost to the Department.