Engineering documentation - 12 Grosvenor Terrace OPW21/0219

Subject: 12 Grosvenor Terrace OPW21/0219
From: Jason Young
Date: 2022-07-05T01:39:47+00:00
To: Mark Lewis

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Hi Mark,

Please find attached Engineering documentation as requested for this application.

With reference to previous documentation submitted for this application, the three independant Engineers  engaged to report on the stormwater conditions of this subject property and Grosvenor Terrace , SCG Consulting Engineers ( whom have been involved with storm water design rectification in Grosvenor Terrace ) Walsh Engineering (formerly Tates Engineering, which was responsible for the Civil Engineering storm water design for the Estate and road reserve in Grosvenor Terrace ) and AAA Design Engineering ( whom has prepared the attached documentation)  have all come to the same conclusion and condemned the original storm water 'swale' design due to the changed conditions as stated within there reports.

The AAA Engineering attached verifies the direction of storm water flows and flow rates for all storm events up to and including the 1% AEP and certifies that in these conditions the existing crossover and driveway at 12 Grosvenor Terrace does not impede water surface flows to the extent which would cause water to top the high point in the driveway at 14 Grosvenor Terrace Noosa Heads and enter there property.

The proposed design for the replacement of the existing kerb with an M3 type mountable kerb will protect the road formation from water flows effecting this area.
The traffic management plan for the works related to this will follow.

I have gone to great lengths with the consultants engaged to prepare documentation to verify conditions, and to design what is required for the best outcome for the storm water flows related to the driveway of 12 Grosvenor Terrace, and trust that I have met the requirements and satisfied councils concern with this application.
Thank you for your understanding with this.

Regards,
Jason Young
12 Grosvenor Terrace
Noosa Heads