Porteous Holdings Pty Ltd - Response to Information Request dated 21 July 2014 · OPW14/0280

cy Cardno

Shaping the Future

Our Ref B7900/05.008 (580)
Cardno (Qld) Pty Ltd

ABN 57 051 074 992
Contact Paul Calver

Level 11

25 August 2014 515 St Paul's Terrace
Fortitude Valley QLD 4006
Australia

The Manager = en ITY

The Jetty Specialist Pty Ltd jpZCe LW Locked Bag 4006

2 Industrial Ave u Fortitude Valley QLD 4006

CALOUNDRA QLD 4551 é aut Australia

. Phone: 64 7 3369 9822
Dear Sir, BY: Fax: 617 33699722
Structural Design Advice www.cardno.com.au

Project: Proposed Pontoon, Piles & Catwalk
Owner: Porteous Holdings Pty Ltd
Address: Lot 48 (18) Wesley Court, Noosa Heads

We, Cardno (Qld) Pty Ltd, advise that the proposal to construct the works described above has been
checked by us. When the works are constructed in accordance with the approved drawings and in the
location shown, the proposed works are structurally adequate for the anticipated usage in this location
and should comply with the design and safety provisions of the Prescribed Tidal Work Code (Schedule
4A of the Coastal Protection and Management Regulation 2003), based on the design criteria, and
assumptions listed below.

Basis of Design Advice

e The works do not impose loads that would significantly affect existing structures.

e The works do not adversely affect the stability of the bed and banks in the near vicinity of
the structure.

e Structural design criteria:

Maximum Wave Height 400mm wind wave
300mm boat wake

Wind Classification N3

Max. Current 1.0 m/s parailel to face of pontoon

Scour Reasonable scour effects from flood flows and tidal flows have been
considered

Debris Load To AS 3962

Impact Loads Minor loads without some damage to structure

Max Vessel Size berthed 8.0 metres length (wet) & 4.0 m beam (wet)

Relevant Codes AS1170, AS 3962 and AS 3600, except where varied by the

Prescribed Tidal Work Code

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