Kingscote Streets Upgrades - Kangaroo Island Council

3.4.3 Inspections 10
3.4.4 Quality Testing 10
3.4.5 Tolerances 12
3.4.6 Acceptance Criteria 12
4 Stormwater Drainage 13
4.1 General 13
4.2 Materials – Stormwater Drainage 13
4.2.1 General 13
4.2.2 Reinforced Concrete Pipes 13
4.2.3 Box Culverts 13
4.2.4 Concrete 14
4.2.5 Reinforcement 14
4.2.6 Covers and Frames 14
4.2.7 Bedding Sand 14
4.2.8 Bedding Aggregate 14
4.3 Construction and Workmanship 14
4.3.1 Procedure of Work 14
4.3.2 Excavation and Backfilling 14
4.3.3 Removal of Redundant Drainage Structures 15
4.3.4 Inspection after Excavation 15
4.3.5 Pipe Bedding – Dry Ground 15
4.3.6 Pipe Bedding – Wet Ground 15
4.3.7 Pipe Laying 15
4.3.8 Pipe Surround 16
4.3.9 Pipe Jointing 16
4.3.10 Box Culvert Bedding 16
4.3.11 Box Culvert Base Slabs - Precast 16
4.3.12 Box Culvert Base – In situ 16
4.3.13 Box Culvert Installation - Crown Units 17
4.3.14 Box Culvert Jointing 17
4.3.15 Backfilling and Surface Reinstatement 17
4.3.16 Drainage Structures 17
4.3.17 Removal of Soil From Drainage lines 18
4.3.18 Sealing Off 18
4.3.19 Scour Protection Apron 18
4.3.20 Scour Protection 18
4.3.21 Connection to Existing Drain 19
4.3.22 Open Earth Channels 20
4.4 Quality Requirements – Stormwater Drainage 20
4.4.1 Inspections 20
4.4.2 Quality Testing 20
4.4.3 Tolerances 21
4.4.4 Acceptance Criteria 21
5 Pavement Subgrade 22
5.1 Construction and Workmanship 22
5.1.1 General 22
5.1.2 Subgrade Preparation 22
5.1.3 Maintenance of Subgrade 22
5.1.4 Proof Rolling 22
5.1.5 Protection of the Subgrade 23
5.1.6 Subgrade Remediation 23
5.2 Quality Requirements – Subgrade Preparation 23
5.2.1 Inspections 23
Ref No. 20120236SA1
Kingscote Streets Upgrades Technical Specification