Question about Paving Roads with a dip and tying in?

[JamieHir]

Hi Guys,

I'm a graduate engineer and have a question that's been pestering me regarding the paving of roads which have a 'dip' if you will. See the image below (numbers are random) -



Forgive the quick CAD drawing, I forgot to mention that the bottom later of the first layer being paved is concrete, so it's impossible to tie in there.

Assume you have to pave Layer 1 up to the dip first, as hatched.

Would you then pave the Dip Layer AND Layer 1 (i.e. Dip depth + Layer 1 depth), so that you could 'tie in' prior to milling BACK to the Dip Layer (-60mm) and repaving back to Layer 1?

Otherwise, you would not be able to tie in the left side of the dip anywhere.

I then have the issue with it not adhering the standards as the dip layer is not thick enough to meet standards?

Note - Assume that I can't pave the hatched portion of the drawing and the dip layer and Layer 1 in one run

Thanks guys.

 

[swazimatt]

is the intention to maintain the dip? or remove the dip?