Kingscote Streets Upgrades - Kangaroo Island Council

• site drainage including all relevant information including sediment collection devices, drainage
lines and discharge points; and
• management of creek or river flows.
Water shall be used in a judicious manner to avoid wastage and in accordance with any applicable
water restrictions.
1.5.2 References
• Stormwater Pollution Prevention – Code of Practice for the Building and Construction Industry –
EPA
• Stormwater Pollution Prevention – Code of Practice for Local, State and Federal Government –
EPA.
1.6 Preservation of Trees and Vegetation
The Contractor shall refrain from destroying, removing or clearing trees and shrubs to an extent
greater than is necessary for the execution of the work under the contract. Areas to be cleared shall
be inspected by the Contractor and the Superintendent's approval obtained before any trees or
shrubs are removed, cleared or destroyed.
The Contractor shall take every reasonable precaution not to damage any tree, including its root
system, which is nominated to be retained.
All construction activities, including storage of materials, vehicles, equipment or rubbish, must be
kept away from existing trees which are to be retained. Before any excavation is carried out over
roots of trees to be retained, obtain a ruling from the Superintendent as to whether the levels in the
vicinity of the tree can be adjusted to protect the roots.
The Superintendent may direct the Contractor to repair any damage or injury to a tree that is to
remain. This work shall be carried out by an approved tree surgeon engaged by the Contractor.
1.7 Drainage of Site During Construction
The Contractor shall carry out the work in such a way as to ensure that no heading up of floodwaters
in new or existing drains or gutters occurs. The Contractor shall be responsible for any damage to
public or private property caused by his operations or which may arise from such operations.
Should this clause not be complied with, the Superintendent may order work to cease until in his
opinion satisfactory arrangements for such drainage have been made.
The site may be subject to surface water in the form of base flows or flood flows during the
construction period. The Contractor is required to account for and handle all flows, base and flood,
during the construction period, and shall be deemed to have made due allowance in his tender for all
costs involved.
1.8 Matching In and Making Good
In addition to the requirements specified in this specification, any damage caused or any temporary
relocations necessary to existing stormwater drains, sign posts, street signs, barrier posts, litter bins
or other similar items shall be made good to a standard which is at least equal to the existing
construction and in a workmanlike manner and to the satisfaction of the Superintendent.
Unless otherwise specified, where the specified works adjoin or abut an existing roadway, footpath
or other existing construction, the existing pavement shall be removed within the limits shown on the
drawings, the existing bitumen shall be saw-cut in a straight line so that the new pavement matches
to give a smooth riding surface and satisfactory drainage properties.
The new kerbs and gutters shall match the existing kerbs and gutters at the locations shown on the
drawings.
Ref No. 20120236SA1 Kingscote Streets Upgrades Technical Specification 3