2008/0169 Response to information request - 71 Seaview Tce Sunshine Beach · 132008.169

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6. There is contradiction between treatments proposed at the western property boundary as shown on
   engineering Drawing 09578RSK6 (i.e. piles) and the submitted Stormwater Management Plan
   (stormwater diversion drain). Therefore please advise whether or not the proposed stormwater drain at
   the rear of the property will be compatible with all of the structures required for structural stability.

Response:
Revised structural engineering drawings and report prepared by Tod Consulting Engineers to reflect
the revised design are included in Attachment 3. Drawings 09578R SK6 & SK7 now accurately reflect
the proposed stormwater management treatments. These drawings demonstrate an appropriate
outcome for structural stability can be achieved.

7.   The configuration of rock check dams and vegetation proposed to be planted within the stormwater
     diversion drain proposed at the western boundary is unclear. In this respect the following information is
     required to darify and justify the surface treatments proposed for the drain:
     7.1.     calculations of the expected velocities within the drain
     7.2.     minimum lining requirement of the drain with respect to excepted velocities to prevent erosion
             as per the recommendations of the Sunshine Coast Regional Council Manual for Sediment and
              Erosion Control Version 1.2
     7.3.     continuous longitudinal and plan section of the whole length of the drain proposed at the
              western boundary to clearly demonstrate the intended surface treatment for the drain

Response:
A revised Site Based Stormwater Management Plan prepared by JF&P is included in Attachment 2.
This report clarifies the surface treatments and expected velocities. Refer in particular to section 3.7
(Management of Flows).

8. As the site will involve disturbance and exposure of more than 250m2. The level of erosion risk /soil loss
   expected during the duration of the construction of the dwelling is required pursuant to the Sunshine
   Coast Regional Council Maroon Manual for Erosion and Sediment Control Version 1.2 (tile Maroon
   Manual) . In the event of more than 150 tonnes of erosion is expected to occur, a hazard evaluation report
   and major erosion and sediment control plan is required to be prepared in accordance with the
   requirements of the Maroon Manual. Calculations and sediment and erosion control plans must be
   certified by a person Certified in Erosion and Sediment Control (CPESC) or a registered professional
   engineer of Queensland to comply with the requirements of the Maroon Manual.

Response:
A Soil and Water Management Plan prepared by JF&P in response to this item is included in
Attachment 4. This report has been prepared in accordance with the Maroon Manual.

9.   There is concern regarding the practicalities of construction of the dwelling on the site. A
     Preliminary Construction Management Plan is therefore required to detail the:
     9.1.    proposed staging of construction with respect to access to different areas of the site for
             all construction activities, integration of sediment and erosion control measures etc
     9.2.    turnaround areas for concrete trucks, drilling rigs etc during the different stages of
             construction;
     9.3.    maximum number of contractors expected on site at one time and correlating location of
             parking for those contractors. Parking is not permitted in Councils carpark on
             Seaview Terrace and limited or no parking in the surrounding streets.
     9.4.    loading and unloading areas at each stage of construction
     9.5.    location of equipment storage at each stage of construction.

              With respect to the above, the Construction Management Plan must demonstrate that
              the use rights of neighbouring properties that utilise the Seaview Terrace access are