ordinary meeting of council to be held on tuesday, 26 april 2005 at ...

Ordinary Meeting <strong>of</strong> Council - 26 April 2005 1 / 15
1, 3, and 5 Lynbara Avenue and
12 Porters Lane, St Ives
Item 1 1219/04
1 April 2005
Impacts on Council Infrastructure and associated works - comments
The scale <strong>of</strong> construction work for this site is expected <strong>to</strong> damage the frontage footpath and road
shoulder. Accordingly, the following infrastructure works will <strong>be</strong> required (Condition No. 113):
Construction <strong>of</strong> a fully new concrete footpath over the site frontage in Ada Avenue. Maximum
crossfall <strong>to</strong> <strong>be</strong> 2.5% <strong>to</strong>wards the gutter.
New concrete driveway crossings from Stanley Street.
Removal <strong>of</strong> all redundant driveway laybacks and re-instatement <strong>to</strong> upright kerb and gutter.
Replacement <strong>of</strong> the verge area <strong>to</strong> turfed verge <strong>be</strong>tween new footpath and existing kerb alignment.
Although not critical <strong>to</strong> the consent, it is recommended (subject <strong>to</strong> approval by the Local Traffic
Committee) that a Work Zone <strong>be</strong> installed in the vicinity <strong>of</strong> the site <strong>to</strong> facilitate construction related
vehicles and serve in reducing construction impacts on the local network. Accordingly, a condition
will <strong>be</strong> applied that the Applicant obtain a resolution from the Traffic Committee in relation <strong>to</strong>
obtaining a work zone and proceed in accordance with any recommendation from the resolution
(Condition No.110).
As with all development <strong>of</strong> this scale, there is the direct risk <strong>of</strong> damage <strong>to</strong> Council infrastructure
during the course <strong>of</strong> the works. A $50,000 bond <strong>to</strong> cover res<strong>to</strong>ration <strong>of</strong> such damage (or completion
<strong>of</strong> incomplete works by Council) is <strong>to</strong> <strong>be</strong> applied (Condition No.95).
Site drainage comments
The submitted concept s<strong>to</strong>rmwater services plans (refer plans C00 <strong>to</strong> C01 by MPN , dated 2/11/04),
have not <strong>be</strong>en designed strictly in accordance with the Council requirements contained in Water
Management DCP 47. A s<strong>to</strong>rmwater retention requirement <strong>of</strong> 3000 litres per unit applies – and
this water is <strong>to</strong> <strong>be</strong> used for <strong>to</strong>ilet flushing, laundry, car washing and irrigation (as a minimum).
Hence <strong>to</strong>tal volume <strong>of</strong> s<strong>to</strong>rage required will <strong>be</strong> 147 m3.
However, it is felt that the shortfall shown on the concept drainage plan submitted with the DA can
<strong>be</strong> addressed via suitable conditions <strong>of</strong> consent . Accordingly, the necessary changes are <strong>to</strong> <strong>be</strong>
made via condition which will require the refinement and advancement <strong>of</strong> the concept plans <strong>to</strong> a
detail suitable for Construction Certificate issue.
Flooding and Overland comments
The site is located <strong>to</strong>wards the <strong>to</strong>p <strong>of</strong> the local catchment and as such the site will not <strong>be</strong> affected by
trunk flows <strong>of</strong> sufficient volume around the site <strong>to</strong> cause concern. The driveway level at the property
boundary shall <strong>be</strong> set a minimum <strong>of</strong> 150mm above the <strong>to</strong>p <strong>of</strong> the frontage kerb <strong>to</strong> prevent
inundation <strong>of</strong> the basement level by flows over<strong>to</strong>pping in the gutter system.
Geotechnical / Structural Comments
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