06/1168 - Change a Development Approval [As Published] · 132006.1168.02

=

7. Topsoiling and Grassing

7.1 General

The Contractor shall topsoil and grass all bare areas remaining within the area affected by earthworks as
detailed in the drawings. This shall include cuts, fills, batters and drainage works. The tendered sum
shall include all operations necessary to produce grass cover in accordance with this specification.

Grass seeding shall be carried out to all of the topsoiled areas unless noted otherwise.

The Contractor shall be responsible for maintenance of the areas grassed until (a) the end of the Defects
Liability Period; or (b) handover of playing fields to Council. Maintenance of the grassed areas shall
include mowing, watering as necessary, and top-dressing where required to ensure an even grass
surface.

7.2 Topsoil Operations

7.2.1 Topsoil Treatment

Generally, topsoil for use on the Site shall be obtained by stripping the original topsoil from those areas
affected by earthworks.

The stripped topsoil is to be tested and conditioned prior to replacing. Additional testing of the topsoil at
time of earthworks is to be undertaken to confirm soil conditioning required and this cost of this testing is
deemed to be included in the tendered lump sum.

tmported topsoil will only be required if ordered by the Superintendent. The topsoil shall be of good
quality to achieve the necessary grass cover and to the satisfaction to the Superintendent.

Payment for imported topsoil will be made for the in situ volume using the rate specified in the
appropriate Provisional Item in the Schedule of Tender Lump Sum. If no such item exists, payment shall
be made at a rate agreed between the Principal and the Contractor.

Topsoil shall be temporarily stockpiled onsite, but no stockpile shall exceed 1.2m in height. No vehicle
shall be permitted to travel on the stockpile.

Unless otherwise shown on the drawings or otherwise specified, topsoil shall be spread at a thickness of
100mm. The thickness for the playing fields shall be as determined in Clause 3.4.5.

7.3 Playing Field Surfacing Construction

The playing fields shall be ameliorated by a specialist contractor in accordance with the following
procedure. In conjunction with the amelioration and seeding of the playing fields, an irrigation system
shall be installed in accordance with Clause 7.4.

Step by step procedure* for construction of playing field surfacing:

» Final trim of playing fields is to be approved in accordance with section 3.4.5;

41/22382/11840 Girraween Sports Precinct A2
Earthworks Package