Response to Information Request OPW20-0145. 19.10.2020 · OPW20/0145

29.

30.

d) Emergency access markers & identifiers will be attached to all emergency access gates.

e) The fuel loads associated with the 20 metre break between proposed Lots 3 and 7, interface between Covenant
J and the 20 metre buffer on Lot 23 will be maintained by mechanical slashing/mowing conducted within the
determined pre fire season (August — October) or as required to conduct mitigation burning and other
management operations. The maintenance of these areas will be the responsibility of the Noosa Civic Centre
Management.

f) The identified covenant areas will not be cleared for bushfire management.

Provide amended landscape plans showing landscaping to the splitter island, suitable for pedestrian and
vehicle sight lines.

Stockwell Response

Element Design have amended their Landscape Plans to include landscaping to the splitter island, suitable for and
vehicle sight lines to lot 23 on. Please refer to Element Design drawing ED 20265 OPW-14 and Barlow Shelley
drawing 1856-R40.

Insufficient information is provided for the bioretention devices proposed within the streetscape to
demonstrate:
i. Sufficient offsets to underground services in accordance with utility services provider's
requirements
ii. Safe movement of pedestrians and bicycles (where shared access paths) along the road verge
iii. That batter slopes are stable and design to avoid the need for safety fencing or bollard, or
incorporate grates
iv. The plantings are setback from the road pavement a sufficient distance to not affect the road
pavement during operation or re-setting
v. That aconnection from the kerb to the filter media surface is provided which is sufficiently
robust and not prone to blockage
vi. That sufficient width exists to accommodate the devices

In general, it appears that extended detention depths are too great and allowance for batter widths too

narrow to make open bioretention function correctly. Covered/grated systems may need to be employed if
the below issued cannot be sufficiently resolved.

Stockwell Response

Barlow Shelley have amended drawings 1856 SW0O1-SW30 in response to items 30 — 34 to demonstrate the
following:

- Extended Detention depths nominated to all bioretention cross sections

- Spot levels for road pavements, kerb inverts and footpaths added to bioretention cross section or new surface
section details included for street trees.

- DN100 PVC-slotted underdrains shown on bioretention plans
- Verge services (storm water, water, sewer, telecoms, electrical)
- Bollards to the perimeter of swale and Bioretention basins in Road A have been removed.

- Batter grades have been amended with proposed extended detention depths to ensure street tree and basin
ponding depths remain below the kerb invert line.

Street tree pits are not proposed to be grated and will functions effectively for the subdivision works. For the future
development of Lots 3 and 7, street pits along Road C may be required — this will occur at the time when it is clear if
this is needed at the time of the MCU for these sites. We note that Road C is a private road.

 

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