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RFI - Attachment 2B - Response by Walsh Engineerging.pdf
Our reference: C6070 (pf)
26th October 2021
Noosa Council
PO Box 141,
Tewantin QLD, 4565
Attention: Mr. Patrick Murphy
Dear Sir,
RE: PROPOSED NOOSA SPRINGS HOTEL DEVELOPMENT
AT 61 NOOSA SPRINGS DRIVE, NOOSA HEADS
COUNCIL REFERENCE MCU21/0110
RESPONSE TO INFORMATION REQUEST
Walsh Consulting Engineers (WCE) have been engaged to provide a response to Council’s Request for
Information, Dated 23rd July 2021, for the development application over Lot 4 on SP178340. WCE offers
the following comments for items relating to engineering and stormwater management items for the
preliminary development application.
1. Amend the application to include Lot 3 SP178340 and provide plans showing the extent of
stormwater drainage easements required over this parcel in favour of the subject site to convey
stormwater through Lot 3 on SP178340 to the downstream waterway.
It is noted that the downstream property (Noosa Springs Golf Course) is under the control of
the same owner as the Noosa Springs Resort. The two allotments at Lot 3 SP178340 and Lot 4
SP178340 are subject to covenants which if sold, guarantee that ownership is to remain with a
single entity. Downstream discharge rights and/or drainage easements are not required. A
letter of consent, confirming acceptance of the proposed drainage arrangement will be
provided by the downstream property owner and lodged under separate cover.
2. As part of the above plans, identify stormwater drainage infrastructure and flow paths within the
downstream land.
Refer to preliminary engineering drawing P08 which indicates stormwater drainage
infrastructure, overland flow paths and existing waterbodies within the Noosa Springs Golf
Course. No changes to the existing downstream drainage regime are proposed as part of this
development application.
[OCR of page images]
WALSH
CONSULTING
ENGINEERS
Our reference: C6070 (pf)
26" October 2021
Noosa Council
PO Box 141,
Tewantin QLD, 4565
Attention: Mr. Patrick Murphy
Dear Sir,
RE: PROPOSED NOOSA SPRINGS HOTEL DEVELOPMENT
AT 61 NOOSA SPRINGS DRIVE, NOOSA HEADS
COUNCIL REFERENCE MCU21/0110
RESPONSE TO INFORMATION REQUEST
Walsh Consulting Engineers (WCE) have been engaged to provide a response to Council’s Request for
Information, Dated 23" July 2021, for the development application over Lot 4 on SP178340. WCE offers
the following comments for items relating to engineering and stormwater management items for the
preliminary development application.
1. Amend the application to include Lot 3 SP178340 and provide plans showing the extent of
stormwater drainage easements required over this parcel in favour of the subject site to convey
stormwater through Lot 3 on SP178340 to the downstream waterway.
It is noted that the downstream property (Noosa Springs Golf Course) is under the control of
the same owner as the Noosa Springs Resort. The two allotments at Lot 3 SP178340 and Lot 4
SP178340 are subject to covenants which if sold, guarantee that ownership is to remain with a
single entity. Downstream discharge rights and/or drainage easements are not required. A
letter of consent, confirming acceptance of the proposed drainage arrangement will be
provided by the downstream property owner and lodged under separate cover.
2. As part of the above plans, identify stormwater drainage infrastructure and flow paths within the
downstream land.
Refer to preliminary engineering drawing PO8 which indicates stormwater drainage
infrastructure, overland flow paths and existing waterbodies within the Noosa Springs Golf
Course. No changes to the existing downstream drainage regime are proposed as part of this
development application.
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3. Provide revised preliminary engineering plans supported by MUSIC modelling which demonstrate
that the pollutant load reduction targets will be achieved prior to discharge from the subject site.
Refer to preliminary engineering drawing P07 and the attached MUSIC Model. Catchment
specific bioretention basins will be provided for new roof and hardstand areas. Rainwater
harvesting and reuse will also be included as part of the proposed water quality management
scheme.
8. Undertake detailed assessment of the proposed changes to the parking layout including:
a) Compliance with the AS2890 Australian Standard series.
Refer to preliminary engineering drawing P06 for details of aisle widths, ramp gradients and
parking bay dimensions. The internal road network generally complies with AS2890.
b) The refuse vehicle swept path assessment indicates that it is extremely tight. It should be redone
using an appropriate clearance envelope and with the vehicle travelling on both directions along the
critical parts of the route.
Refer to preliminary engineering drawing P05 for details of service vehicle swept paths. The
existing access driveway is generally adequate for the design vehicle (waste collection vehicle).
Some minor pavement widening will be required in order to accommodate the entry and exit
manoeuvres of the waste collection vehicle.
Please contact the undersigned at our Maroochydore office if additional information is
required.
Yours faithfully
Michael Colnan
for WALSH CONSULTING ENGINEERS
[OCR of page images]
WALSH
CONSULTING
ENGINEERS
3. Provide revised preliminary engineering plans supported by MUSIC modelling which demonstrate
that the pollutant load reduction targets will be achieved prior to discharge from the subject site.
Refer to preliminary engineering drawing PO7 and the attached MUSIC Model. Catchment
specific bioretention basins will be provided for new roof and hardstand areas. Rainwater
harvesting and reuse will also be included as part of the proposed water quality management
scheme.
8. Undertake detailed assessment of the proposed changes to the parking layout including:
a) Compliance with the AS2890 Australian Standard series.
Refer to preliminary engineering drawing P06 for details of aisle widths, ramp gradients and
parking bay dimensions. The internal road network generally complies with AS2890.
b) The refuse vehicle swept path assessment indicates that it is extremely tight. It should be redone
using an appropriate clearance envelope and with the vehicle travelling on both directions along the
critical parts of the route.
Refer to preliminary engineering drawing POS for details of service vehicle swept paths. The
existing access driveway is generally adequate for the design vehicle (waste collection vehicle).
Some minor pavement widening will be required in order to accommodate the entry and exit
manoeuvres of the waste collection vehicle.
Please contact the undersigned at our Maroochydore office if additional information is
required.
Yours faithfully
M—
Michael Colnan
for WALSH CONSULTING ENGINEERS