4325IR Response

Callaghan & Toth Consulting Engineers Pty Ltd

ABN No. 45140292324

8/41 Sunshine Beach Road Noosa Junction

P.O Box 2305 Noosa Heads 4567 Callaghan & Toth

www.callaghanandtoth.com.au
Ph: 07 5474 9081 Fax: 07 54749041

4st June 2017

Civil, Environmental & Hydraulic Engineers
=

File No. 1622

 

Development Planning Officer

Noosa Council

Via Email: [email protected]

Attention: Patrick Murphy

RE: REPONSE TO INFORMATION REQUEST MCU17/0028 OPW17/0120 REC17/0012
AT 23 TEWANTIN ROAD, COOROY

In reply to Noosa Council Information Request dated 9" May 2017 we enclose our response to items

as follows:

Issue 1:

The proposed access driveway to Tewantin Road is a significant structure in a Main
Roads controlled road. The structure has the potential to create adverse impacts on
the existing services, vegetation and drainage patterns.

Information Required:

Response 1:

Response 2:

Response 3:

1. Provide written approval from the Department of Transport and Main Roads for the
proposed access driveway works and associated retaining structures.
2. Provide comment from the design engineer that addresses the potential impacts on
the adjoining property due to the changes in overland flows created by the proposed
access driveway.
3. Provide RPEQ certification that states that:
a. the designed structure will provider suitable sight lines to pedestrians on
the footpath in Tewantin Road.
b. the proposed retaining structures do not create an unacceptable fall risk in
the road reserve or within the property.
4. Provide written approval from any third party service provider (Telstra, Unitywater
etc.) whose assets (both above and below ground) may be affected by the works.

Refer to separate written approval from the department of Transport and Main Roads
for the proposed driveway works.

Our driveway location ensures that there is no impacts on the adjacent property due
to changes in overland flow paths.

The survey contours show that the verge runoff flows is at 90° approximately to the
road and so our driveway design will not divert these flows. The small retaining wall is
set 300mm inside the client's boundary to drain any local depressions.

a) | certify that we have checked the sight lines to pedestrians on the footpath and that
they exceed the requirements in F1G 3.2 of AS 2890.1

b) | certify that retaining walls are more than 500mm away from the edge of the
pathway and are only a max of 0.75m high which is less than the minimum 1m high
wall requiring a barrier. The edge is also raised to define the change of grade. The
design ensures that the public will not use the driveway. Therefore | certify that the
structure does not create an unacceptable fall risk in the road reserve or within the
property.

X:JOBSICT Projects in progress\1622 23 tewantin rd\Correspondence\Response to Noosa Council Info Request.doc