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SDA-1116-034770 - 23 Jirrima Crescent - Information request (concurrence agency)
Attached to the e-mail Information request-concurrence agency - MCU16/0099 & OPW16/0218.
Our reference: SDA-1116-034770 Council Reference: MCU16/0099 21 November 2016 NBN Co C/- Aurecon Australia Locked Bag 331 BRISBANE QLD 4000 [email protected] Dear Sir/Madam Information request—concurrence agency 23 Jirrima Crescent, Cooroibah – Lot 47 on RP136461 (Given under section 276 of the Sustainable Planning Act 2009) The referral agency material for the development application was received by the Department of Infrastructure, Local Government and Planning under section 272 of the Sustainable Planning Act 2009 (the act) on 8 November 2016. The department has carried out an initial review of the application and has determined that in accordance with section 276 of the act, the following additional information is requested to complete the assessment of the application: Item Information requested Raising or constructing waterway barrier works 1. IDAS form 27 mandatory information: Please provide scaled drawings of the proposed waterway barrier works(new culvert crossing), the following should be included; - details of the waterway (stream profile, morphology, riparian habitats); - details of the design features that mitigate the impacts on fish passage, e.g. how the proposed culvert meets the design requirements of the self- assessable code WWBW01- Part 3, Culvert Crossings. - Include details of the culvert base, will it be at or below bed level, details of the culvert cell bed – e.g. concrete or natural bed, any low flow channels incorporated into the design, and dimensions of the crossing - including cross sections of the culvert crossing within the waterway. 2. PO1 – Development will not increase the risk of mortality, disease or injury or compromise the health and productivity of fisheries resources. It has been stated that the development does not comply with section 5.1.6 of the self- assessable code WWBW01- Part 3: Culvert Crossings- “if it is necessary to remove vegetation (marine, aquatic or riparian) for the development, the vegetation is to be cut SEQ North Region Page 1 Level 8, Mike Ahern Building 12 First Avenue PO Box 1129 Maroochydore QLD 4558
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SDA-1116-034770
Item Information requested
no lower than ground level and the roots are to be left in the ground to aid in
stabilisation. If deep excavation is required during construction the roots may only be
removed within the construction footprint area under this code.”
Please provide further information on this aspect of the development and how the
development will not increase the risk to fisheries resources if this requirement cannot
be met.
3. PO4 – response to AO4.2 of SDAP Module 5.2; If the barrier remains in place,
fish passage provision in accordance with the approved design and operation is
maintained as long as the barrier remains.
Please detail how the culvert will be maintained so that the fish passage features of
the structure (e.g. low flow channel and culvert cells) remain navigable by fish (i.e. not
silted up or block by debris).
4. PO10 – Offsets.
Without detailed designs of the culvert crossing, it cannot be determined whether the
proposed development will result in a significant residual impact to fish passage.
Please provide detailed design drawings including information on the design features
incorporated into the culvert design that have been utilised to allow for fish passage
through the structure. Refer to the DILGP Significant Residual Impact Guideline –
section 3.8 “Waterways providing for fish passage” to determine if a significant
residual impact is expected.
5. PO20 - Fish passage is provided for:
(1) in the inherent design of the waterway barrier works
(2) over the in-situ life of the barrier in that position through adequate
construction and maintenance of the barrier.
Please confirm through providing detailed plans that the culvert design will comply with
the design provisions of the self-assessable code WWBW01- Part 3 Culvert Crossings
for Amber waterways.
If the plans are not in line with the self-assessable code, please provide detail on the
following, in relation to the culvert crossing:
- The expected drown out characteristics of the culvert crossing and the ability
for fish to cross the barrier under all flow conditions – i.e. water velocities will
not exceed 0.3ms through the low flow channel
- The expected timing and duration of drown out events and the delay expected
to fish passage when there are flows in the system but no fish passage being
provided.
6. PO23 - Waterway barriers that are culverts provide adequate fish passage for
the site, and:
(1) fish passage is provided for the life of the crossing
(2) hydraulic conditions (depth, velocities and turbulence) from the
downstream to the upstream limit of the structure allow for fish passage of
all fish attempting to move through the crossing at all flows up to the
drownout of the structure.
Please provide the following information in relation to the culvert crossing design:
- please provide information on why a bridge is not suitable at this site (i.e. the
reason a culvert has been proposed instead of a bridge)
- provide information or drawings which detail that the culverts cells extend 100
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SDA-1116-034770
Item Information requested
per cent of the main channel width or that they comply with the self-assessable
code.
- confirm that the culvert crossing and associated erosion protection are installed
at no steeper gradient than the waterway bed gradient
- provide detailed designs showing that there are no drops in elevation at the
joins of the culvert invert, apron and scour protection, and how this will be
maintained for the life of the crossing
- confirm which is applicable: The culvert will be buried a minimum of
300millimetres to allow bed material deposit and reform the natural bed on top
of the culvert base, or; The base of the culvert is the stream bed, or; The base
of the culvert cell is roughened throughout the culvert floor to simulate natural
bed conditions.
- Please indicate if any baffles or other roughening elements are to be used
6. PO25 All waterway barriers are designed, constructed and maintained to
provide adequate fish passage for the site and fish passage is provided for the
life of the barrier.
Please detail how fish passage will be maintained with particular reference to
expected or modelled hydraulic conditions from the downstream to the upstream limit
of the crossing.
Please confirm through providing plans that the culvert design will comply with the
design provisions of the self-assessable code WWBW01- Part 3 Culvert Crossings. If
the plans are not in line with the self-assessable code;
- please detail how hydraulic conditions over the barrier will allow for fish
passage over all flow conditions.
- how water quality across the barrier will allow for fish passage.
Under section 278 of the act, when responding to this request you must advise whether you
are supplying all of the information requested, part of the information requested, or none of
the information requested. If you are supplying part or none of the information requested, you
are also required to provide written notice asking the department to proceed with the
assessment of the application.
The due date for receipt of this information is 6 months after the day you receive this request.
If necessary you may request an extension to this period. Unless a response to this request
for further information has been received from you within this period or any extension during
this period, your application will lapse.
A pro forma is attached to this notice to assist you in providing an information request
response which complies with the requirements of the act.
Please be advised that the application will be assessed on the basis of the information
provided. It is therefore recommended that you respond to all of the information requested by
the department. Further details regarding the information request response period and the
lapsing of development applications are set out in sections 279 and 280 of the act.
Your response to the information request must be submitted to the department through
MyDAS or alternatively emailed to [email protected] the department is a concurrence agency, you must also give a copy of the information
request response to the assessment manager under section 278(2) of the act.
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SDA-1116-034770
If you require any further information, please contact Gabriel Escobar, Planning Officer, on
3432 2408, or via email [email protected] who will be able to assist.
Yours sincerely
Garth Nolan
Planning Manager
cc: Noosa Shire Council, [email protected]
Department of Agriculture and Fisheries, [email protected]
enc: Pro forma – Response to information request—concurrence agency
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SDA-1116-034770
Your reference: SDA-1116-034770
Attn: SEQ North Region (Gabriel Escobar)
Response to information request—concurrence agency
23 Jirrima Crescent, Cooroibah – Lot 47 on RP136461
(Given under section 278 of the Sustainable Planning Act 2009)
Assessment manager reference: MCU16/0099
Local government area: Noosa Shire Council
As the applicant of the above development application, I am responding to your
information request by:
Enclosing all of the information requested.
Enclosing part of the information requested and asking that the requesting
authority proceed with the assessment of the application.
Advising that I do not intend to supply any of the information requested and
asking that the requesting authority proceed with the assessment of the
application.
Name of applicant: nbn C/- Aurecon Australia
Signature of applicant:
Date:
Department of Infrastructure, Local Government and Planning Page 5