01
Jan
Gravelling within FHD, Rock Fill(boulders), Synthetic-fibre filter fabric 210 g/sq.m (Geo-Textile), Heavy grading, 200mm thick natural granular material layer of quality equal to G45 or above, 200mm thick 0-6mm crusher run stone dust layer. Precast reinforced concrete box culverts cells as per the drawing. Under water Gabion cages with boulders
