Protection works shall consist of rock pitching adjacent to outlets and headwalls of drainage conduits and at intersections of open drains. Protection works shall be carried out to the details indicated on the drawings. Before placing rock pitching, the bank on which it is to be placed shall be trimmed to a uniform slope as detailed on the drawings. Mortar bedding shall first be placed commencing at the lowest point of the slope and placing shall then progress upward. Depth of the bedding shall be as indicated on the drawings.
Additional backfill material will be placed on top of the concrete stabilised backfill as required to obtain correct finished levels. All open drains will be constructed to the levels and grades shown on the drawings. All backfill will be compacted to 90% of maximum dry density as measured by AS 1289 Part 3, except under roadways and access areas where the backfill will be compacted to 95% of maximum dry density.
Height of the bedding will be as indicated on the drawings. Protection works will consist of rock pitching adjacent to outlets and headwalls of drainage conduits and at intersections of open drains. Protection works will be carried out to the details indicated on the drawings. Open drains will include table rains, catch drains and dispersal drains. This material will be as detailed on the drawings. Backfill will be placed equally each side of the pope to avoid disturbing the approved installed pipe conduit. Backfill will be placed equally each side of the culvert to avoid disturbing the approved installed box culvert.
Embedded metalwork included in the concrete structures such as open grating, support channels, manhole cover and the like will be constructed to the details shown on the drawings and in compliance with the specification. Before placing rock pitching, the bank on which it is to be placed will be trimmed to a uniform angle as detailed on the drawings. Mortar bedding will first be placed commencing at the lowest point of the angle and placing will then progress upward.
Suitable backfill material shall be placed around the pipe to a depth of 300 mm above the top of the pipe or as detailed on the drawings. The remainder of the trench shall be backfilled to finished ground level with material previously excavated from the trench. All backfill shall be compacted to 90% of maximum dry density as measured by AS 1289 Part 3, except under roadways and access areas where the backfill shall be compacted to 95% of maximum dry density. Compaction of the backfill material shall be by hand operated mechanical vibratory compaction equipment. Compaction shall not be used within 150 mm of the pipe.
Additional backfill material will be placed on top of the concrete stabilised backfill as required to obtain correct finished levels. All open drains will be constructed to the levels and grades shown on the drawings. All backfill will be compacted to 90% of maximum dry density as measured by AS 1289 Part 3, except under roadways and access areas where the backfill will be compacted to 95% of maximum dry density.
Height of the bedding will be as indicated on the drawings. Protection works will consist of rock pitching adjacent to outlets and headwalls of drainage conduits and at intersections of open drains. Protection works will be carried out to the details indicated on the drawings. Open drains will include table rains, catch drains and dispersal drains. This material will be as detailed on the drawings. Backfill will be placed equally each side of the pope to avoid disturbing the approved installed pipe conduit. Backfill will be placed equally each side of the culvert to avoid disturbing the approved installed box culvert.
Embedded metalwork included in the concrete structures such as open grating, support channels, manhole cover and the like will be constructed to the details shown on the drawings and in compliance with the specification. Before placing rock pitching, the bank on which it is to be placed will be trimmed to a uniform angle as detailed on the drawings. Mortar bedding will first be placed commencing at the lowest point of the angle and placing will then progress upward.
Suitable backfill material shall be placed around the pipe to a depth of 300 mm above the top of the pipe or as detailed on the drawings. The remainder of the trench shall be backfilled to finished ground level with material previously excavated from the trench. All backfill shall be compacted to 90% of maximum dry density as measured by AS 1289 Part 3, except under roadways and access areas where the backfill shall be compacted to 95% of maximum dry density. Compaction of the backfill material shall be by hand operated mechanical vibratory compaction equipment. Compaction shall not be used within 150 mm of the pipe.
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