07/0604 - Response to Information Request [As Published] · 142007.604

General Turf areas: 100mm

Tree Planting: Allow for excavation and placement of 1m3 of site topsoil per tree.

 

 

6 SUBGRADE PREPARATION

 

During cultivation, thoroughly mix in any materials to be incorporated into the subsoil.
Cultivate manually within 300mm of paths and structures. Remove stones exceeding
25mm, clods of earth exceeding 50mm and any weeds, rubbish or other deleterious
material brought to the surface during cultivation.

Cultivate the subsoil to all planting and turf areas to a depth of 150mm.

 

 

7 TRIMMING OF SUBGRADE

 

The subgrade shall be shaped to the profile required. The surface of the subgrade shall
be compacted, trimmed, profiled and check levelled prior to placing of pavement
materials.

Surface of subgrade shall be left free from rubbish, stones, felled timber and brush, and
left smooth and clean, true to the grade and levels shown on the drawings.

The allowable variation on design level at any point shall be 50 mm provided that all
areas are free draining and no ponding of water occurs. ,

 

 

8 SURFACE DRAINAGE .

 

1.8.1 GENERAL

 

 

 

 

Surface drainage pit shall be installed to locations and levels as indicated on the
engineering drawings. Finish surface pit level flush with surrounding surface finish levels.
Ensure positive overland drainage flow to all pits and that no ponding occurs around the
pit. Align all pits square to paths, pavement patterns, kerbs, walls and the like.

Install pit to manufacturer's recommendations

Product: Aco 450X450 Commercial Drain Sump with Standard HDG (Medium Duty) bolt
down Mesh Grate or approved equal. .

 

 

9 ~ ‘TOPSOIL

 

1.9.1 SITE TOPSOIL

 

 

Modified Site Topsoil to be supplied by others. Contractor to supply truck, cart and truck
soil from location onsite.