The bedding material shall be compacted to the Characteristics Dry Density Select Bedding Ratio as specified for Construction’ in Specification 302 Material ‘Embankment EARTHWORKS, with a testing frequency in accordance with Specification 201 QUALITY SYSTEMS. 405.31 HANDLING OF PRECAST UNITS Pre-cast units shall be handled and installed in such a manner that no Damaged cracking or any other non-conforming defect occurs outside the Concrete Units acceptable limits given in Specification 404 CULVERTS Annexure 404B. Damaged pipe and box culverts shall be repaired or replaced in accordance with Annexure 404B at no cost to the Principal. 405.32 BACKFILL AND COMPACTION Prior to backfilling the Contractor shall certify to the Superintendent HOLDPOINT that compliance has been achieved with all specified requirements. Unless otherwise shown on the Drawings backfill material up to sub-grade Below Subgrade level shall be embankment material placed and compacted to the requirements as specified for Construction’ in Specification ‘Embankment 302 EARTHWORKS, with a testing frequency in accordance with Specification 201 QUALITY SYSTEMS. Unless otherwise shown on the Drawings backfill material above sub-grade Above Subgrade level shall be pavement material placed and compacted in accordance with Specification 501 PAVEMENTS, with a testing frequency in accordance with Specification 201 QUALITY SYSTEMS. Backfilling and compaction of stormwater drains shall be carried out in Damage accordance with Specification 404 CULVERTS. All conduits connecting to the drainage structure that are damaged by the backfilling and compaction processes used by the Contractor, shall be repaired or replaced at no cost to the Principal. 405.33 PAVEMENT REINSTATEMENT Where a structure is constructed within an existing road pavement, the Reinstatement pavement on the existing road shall be reinstated by the construction of the appropriate pavement layers with thicknesses as shown in the Drawings. The edges of the excavation shall be saw cut straight and the excavation Edges & backfilled to the requirements of Clauses 404.26 and 404.32 Pavement ‘General’ and Compaction’ respectively. The pavement layer(s) shall be ’Backfill constructed to the relevant requirements of Specification 501 PAVEMENTS. Bituminous surfacing and asphalt shall be applied in accordance with Surfacing requirements of Specification 503 BITUMINOUS SURFACING and Specification 504 ASPHALT SURFACING respectively, with the top surface finished level with the surrounding existing sealed surface. A waterproof seal shall be placed between the new and the old surfaces. Waterproof Seal 405.34 DRAINAGE STRUCTURES
The bedding material shall be compacted to the Characteristics Dry Density Ratio as specified for ‘Embankment Construction’ in Specification 302 EARTHWORKS, with a testing frequency in accordance with Specification 201 QUALITY SYSTEMS. Select Bedding Material 405.31 HANDLING OF PRECAST UNITS Pre-cast units shall be handled and installed in such a manner that no cracking or any other non-conforming defect occurs outside the acceptable limits given in Specification 404 CULVERTS Annexure 404B. Damaged pipe and box culverts shall be repaired or replaced in accordance with Annexure 404B at no cost to the Principal. Damaged Concrete Units 405.32 BACKFILL AND COMPACTION Prior to backfilling the Contractor shall certify to the Superintendent that compliance has been achieved with all specified requirements. HOLDPOINT Unless otherwise shown on the Drawings backfill material up to sub-grade level shall be embankment material placed and compacted to the requirements as specified for ‘Embankment Construction’ in Specification 302 EARTHWORKS, with a testing frequency in accordance with Specification 201 QUALITY SYSTEMS. Below Subgrade Unless otherwise shown on the Drawings backfill material above sub-grade level shall be pavement material placed and compacted in accordance with Specification 501 PAVEMENTS, with a testing frequency in accordance with Specification 201 QUALITY SYSTEMS. Above Subgrade Backfilling and compaction of stormwater drains shall be carried out in accordance with Specification 404 CULVERTS. All conduits connecting to the drainage structure that are damaged by the backfilling and compaction processes used by the Contractor, shall be repaired or replaced at no cost to the Principal. Damage 405.33 PAVEMENT REINSTATEMENT Where a structure is constructed within an existing road pavement, the pavement on the existing road shall be reinstated by the construction of the appropriate pavement layers with thicknesses as shown in the Drawings. Reinstatement The edges of the excavation shall be saw cut straight and the excavation backfilled to the requirements of Clauses 404.26 ‘General’ and 404.32 ’Backfill and Compaction’ respectively. The pavement layer(s) shall be constructed to the relevant requirements of Specification 501 PAVEMENTS. Edges & Pavement Bituminous surfacing and asphalt shall be applied in accordance with requirements of Specification 503 BITUMINOUS SURFACING and Specification 504 ASPHALT SURFACING respectively, with the top surface finished level with the surrounding existing sealed surface. Surfacing A waterproof seal shall be placed between the new and the old surfaces. Waterproof Seal 405.34 DRAINAGE STRUCTURES
Specification%20405%20Drainage%20Structures%2001%20May%202017.RCN-D17^23334982.DOCX