Reference Specifications for Civil Engineering Work 2001

9.2Extent of Surface Reinstatement

Road Pavements

Transverse trench crossing: Reinstate as shown on Standard Drawing BSD-2042.

Longitudinal trench: The whole of the road lane width shall be resurfaced to match the existing road surface. A road lane refers to half of unmarked roadways, a width of 2.5 m from kerbs where it forms a parking only lane or the width of marked lanes. Where an existing section of roadway adjacent to kerbs and other pavement edges is undamaged for less than 1.0 m, resurface the undamaged section of roadway as part of restoration of the trench.

Where the trench disturbance is greater than half the total width of a road without lane line-marking that is less than 10 m wide, then the whole road shall be cold planed and resurfaced after the appropriate restoration of the trench.

Damage to existing surface: The adjacent road surfaces shall be appropriately protected from damage from construction vehicles, placement of material, excavated rock indentations etc. Where damage occurs to the existing adjacent road/driveway surface, i.e. gouges, scrapes or potholes; the surface shall be returned to its previous condition by resurfacing the entire road pavement (lane) or resurfacing of the total driveway crossing area at the discretion of Council.

Parallel Cracking: Where parallel cracking of the existing road surface occurs along the edge of a trench then the reinstatement shall be widened to a line at least 200 mm beyond the extremity of the cracking and parallel to the trench so as to produce a consistent width of restoration.

Footpaths and bikeways

Concrete: Transverse trench crossing – Remove and replace full section between existing adjoining joints e.g. contraction joints, shrinkage control joints or pattern lines.

Concrete: Longitudinal trench – Remove and replace surface for length of trench for full width or to the nearest longitudinal joint or existing pattern lines. Commence and end reinstatement at existing transverse joints e.g. contraction joints, shrinkage control joints or pattern lines.

Asphalt: Transverse trench crossing - Reinstate as shown for road crossings on Standard Drawing BSD-2042.

Asphalt: Longitudinal trench – The width of the existing footpath surfacing for the length of trench shall be resurfaced to match the current regulations for width and surface finish.