403.31 Filter Aggregate and Backfill Material 10 403.32 Filter Aggregate and Backfill Material 10 403.33 Filter Aggregate and Backfill Material 10 403.34 NOT USED 10 403.35 Marker 10 403.36 403.80 NOT USED 10 – AS BUILT AND HANDOVER REQUIREMENTS 11 403.81 403.90 NOT USED 11 – CONTRACT SPECIFIC REQUIREMENTS 11 403.91 403.99 NOT USED 11 – SPECIFICATION 403 SUB-SOIL DRAINS GENERAL 403.01 SCOPE The work this specification consists of the supply and installation of subsoil drainage. 403.02 REFERENCES Australian Standards, MAIN ROADS Western Australia Standards and MAIN ROADS Western Australia Test Methods are referred to in abbreviated form (e.g. AS 1234, MRS 67-08-43 or WA 123). For convenience, the full titles are given below: Acts and Regulations WorkSafe WA Occupational Safety and Health Regulations 1996 Australian Standards
403.31 Filter Aggregate and Backfill Material 10 403.32 Filter Aggregate and Backfill Material 10 403.33 Filter Aggregate and Backfill Material 10 403.34 NOT USED 10 403.35 Marker 10 403.36 – 403.80 NOT USED 10 AS BUILT AND HANDOVER REQUIREMENTS 11 403.81 – 403.90 NOT USED 11 CONTRACT SPECIFIC REQUIREMENTS 11 403.91 – 403.99 NOT USED 11 SPECIFICATION 403 SUB-SOIL DRAINS GENERAL 403.01 SCOPE The work this specification consists of the supply and installation of subsoil drainage. 403.02 REFERENCES Australian Standards, MAIN ROADS Western Australia Standards and MAIN ROADS Western Australia Test Methods are referred to in abbreviated form (e.g. AS 1234, MRS 67-08-43 or WA 123). For convenience, the full titles are given below: Acts and Regulations WorkSafe WA Occupational Safety and Health Regulations 1996 Australian Standards