Engineers Certification · OPW16/0239

Report No:    W6159le.
Client Name: Adam McGuire
Report Date: November 29, 2016.
Site Address: Lot 129 Luttons Court, Cooroy.

                        Retaining Wall Design & Fill Certification.


Application Number OPW16/0239 dated 25/11/2016.


The existing allotment has been cut 700mm deep & filled a maximum of 1000mm – 50
percent of the fill material was crushed road base form a quarry (see attached info).
The fill was laid down in 200mm layers loose and track rolled twice for each layer with a
5 tonne pad foot roller. I am of the opinion the fill is sufficiently compacted to be stable.

The existing retaining walls on the fill side are as per attached details (pages 1-3) and
proposed the proposed to be constructed as per detail on page 4.

I am of the opinion the existing retaining walls are suitable built to retaining the existing
fill.

All surface water runs towards the road and the retaining agi lines runs to the kerb.

Ray Williams - Sunrise Design Qld Pty Ltd
RPEQ 2166
Phone: (07) 5442-5930
Email: [email protected]