Further Reports regarding OPW21/0192 12 Gosvenor Tce - Existing Driveway Crossover at Number 12 Grosvenor Tc Noosa Heads (This is not related to OPW20/0172 as per email subject line) · OPW21/0219

Subject: OPW20/0172 12 Gosvenor Tce Fwd: Existing Driveway Crossover at Number 12 Grosvenor Tc Noosa Heads
From: Jason Young
Date: 2022-07-05T06:14:30+00:00
To: Mark Lewis

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Hi Mark,
Further to my ealier email and regarding previous engineers reports, i am forwarding the report from Walsh Engineering and have attached the report from SCG Engineering so you have digital copies of these reports for your reference and to pass on to other departments within council to assist with assessment.

As mentioned, within these reports, the originally designed storm water swale drain in the road verge to affected properties in Grosvenor Terrace is deemed to be ineffective and redundant  due to the changed conditions from previous rectification work by Council resulting in the redirection of water flows directly to the newly formed m3 kerb and catchment drain.

The new Engineering design supporting this application from AAA Design Engineers is consistant with this new stormwater system provided by council, and certifies an effective storm water discharge from the subject site without impeding surface flows from the upstream driveway crossover at 14 Grosvenor Terrace in any rain event up to and including the 1%  AEP as demonstrated within their report.

Regards,
Jason Young
12 Grosvenor Terrace
Noosa Heads





---------- Forwarded message ---------
From: Justin Walsh <[email protected]<mailto:[email protected]>>
Date: Tue, 27 Jul. 2021, 12:24 pm
Subject: Existing Driveway Crossover at Number 12 Grosvenor Tc Noosa Heads
To: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>>
Cc: Jeanene Lowe <[email protected]<mailto:[email protected]>>


To Whom it May Concern,

I was the Managing Director of Tate Professional Engineers when we prepared the civil design drawings for Grosvenor Tc, Noosa Heads. The attached photograph of the frontage of Lots numbered 17 and 18 and the attached annotated, original design drawings indicate that subsequent to the original design and construction several amendments have been made to the configuration of the street. These changes include filling of the swale drain on the frontages of Lots 16, 17 and 18, replacement of the concrete edge restraint on these lot frontages with Kerb and Channel and replacement of the in-swale pit with a side inlet pit within the roadway.
These changes made the existing swale drain on the frontage of lot 19 (Street Address 12 Grosvenor TC) ineffective and redundant as it effectively removed the point of discharge for this drain.

The removal of the downstream drain left the owner of Number 12 with little choice other than to adopt the new crossfall from the property  frontage down to the road edge as per the downstream frontages or allow ponding to occur in the road verge in front of his property. As a consequence of the downstream changes the driveway crossover was constructed to match the new crossfall.

I consider it to be incongruous that Council would request changes to the driveway of number 12 when the original design has been significantly altered by the downstream actions of others.

Regards,
Justin Walsh
Managing Director

[Sig jwalsh]