29.08.01(c) For Composite Pavement

 

29.08.01(c)(i) Concrete Road Base

The minimum restoration area shall be the limit of the utility cut.

The type of material used for road base restoration shall be based on the current road condition rating.

For arterial and collector roads with a road condition rating of “ now deficient ” and local roads with a road condition rating of either “ now deficient ” or “ 1 – 5”, the concrete road base shall be restored with deep strength asphalt.

For all other roads, the concrete road base shall be restored with a new concrete road base, tied into the existing surrounding road base.

In all cases, the thickness of the new road base material shall match that of the existing concrete road base.

29.08.01(c)(ii) Asphalt Surface

The minimum restoration area shall be the entire width of the lane, or lanes disturbed by the utility cut and shall be a minimum of 3.0m long, measured along the travel direction of the road. Where this area is greater than the actual utility cut, the additional pavement area shall be either milled to a minimum depth of 100mm and repaved in conjunction with the utility cut.

For multiple utility cuts where the remaining pavement would be 1.0m or less between the edges of adjacent restoration limits, the remaining pavement between the utility cuts shall be either milled to a minimum depth of 100mm or completely removed, and repaved in conjunction with the utility cuts.

The depth of the restored asphalt surface shall match that of the existing asphalt surface.

29.08.01(d) For Concrete Curb & Gutter on Asphalt Pavements:

The minimum length of restoration shall be to the nearest joint beyond the limit of the required pavement restoration. Where the nearest joint is greater than 1.2 metres beyond the edge of the required pavement restoration, the curb shall be neatly sawcut at the edge of the pavement restoration limit.

29.08.01(e) For Concrete Sidewalks & Driveways:

The minimum restoration shall be a full panel. The minimum panel dimension shall match the size of adjacent panels.