Hi,
We have received our engineering drawings & building permit back and it specifies bored piers in the drawings & permit for my 'p' class site.
19 x 450 DIA. MASS CONCRETE BORED PIER TO 2000 DEPTH
20 x 450 DIA. MASS CONCRETE BORED PIER TO 3000 DEPTH
"STEEL PILE ALTERNATIVE IS AVAILABLE AS AN OPTION HOWEVER HAVE NOT BEEN DESIGNED UNDER THE SCOPE OF THIS PROJECT"
In our contract document, I can see we have been charged for just the screw piles as an additional $18,000 but nothing for bored piers.
So my question is:
1. Should I insist on screw piles option or go with bored piers as proposed in the drawings
2. Is the cost differential significant between bored piers vs screw piles?