Comments

The draft policy indicates that the buried approach slab would typically be installed on a gradient of 5% to 10%, but there is little to no discussion on how to choose the gradient AND there is no discussion on any complications that may arise based on the GRADE of the highway approaches. Read more

I am concerned that, since the depth of the granular backfill placed against the tapered concrete fillet will be reduced from full-depth to a theoretical zero depth, the last few inches of the granular wedge may not be properly compacted and will be the cause of pavement cracking in this location. Read more

On the proposed SS105-18 drawing, the Longitudinal Section indicates a minimum 250 mm of sub-base pavement layers (granular) at the end of the approach slab. Read more