Council Works Program Information
One of the most common things we hear from the community about roadworks is...
"Why are you resurfacing that road!? It looks perfectly OK to me. You should be spending our rates on roads that really need fixing!"
Although you may see us doing roadworks that seem to be unnecessary or of low priority there's actually good reason for this work. We all know it's a false economy to wait until paint is flaking before you repaint. If you do that, the job ends up being a lot bigger and more expensive, often with more repairs being needed. Better to paint at regular intervals over time to keep the surface performing its function as a protective layer.
Looking after roads is similar. While the road structure underneath (the "pavement") is designed to last for up to 80 years, the surface lasts only 10-15 years. If left to deteriorate, water seeping through the surface will damage the pavement requiring more expensive repairs. This is why Council's Asset Management Strategy considers the life cycle of a typical road and separates roadworks into 3 phases.
Phase 1: Surface Treatment
The road surface is less than 10-15 years old with little or no surface defects. Looking after roads in this phase prevents them from deteriorating to Phase 2. These surface treatments can include rejuvenation surfacing to counter the effects of oxidisation of the bitumen, micro-surfacing or just a new spray seal wearing course.
Phase 2: Heavy Patching and Surface Treatment
These roads haven't had a surface treatment in the last 10-15 years and have some surface defects including cracks and potholes. The cost of a Phase 2 project is usually three times more than a Phase 1 project. The worst roads in Phase 2 should be prioritised first, to prevent them from deteriorating into Phase 3.
Phase 3: Reconstruction
The roads have deteriorated to such an extent that full reconstruction is required. A Phase 3 project is usually three times more expensive than a Phase 2 project.
The majority of our roads are in Phase 1 and 2 and the challenge is to stop these roads from deteriorating into Phase 3. Over time, by intervening in Phase 1 and 2, the list of roads in Phase 3 will decrease and the overall condition of our roads will improve. This approach ensures that relatively good roads are not left to deteriorate, thereby avoiding expensive repairs in the future, while also having a road reconstruction program for those roads that are in poor condition.