When a road is inundated, especially for a long time, the materials in the road pavement become saturated. This reduces the strength of the road pavement material.
|Single 4 tyre||9.0 t||7.2 t|
|Tandem 8 tyre||16.5 t||13.2 t|
|Tri 12 tyre||20.0 t||6.0 t|
Council’s Engineers, in making these decisions, rely on specialist advice based on measurement and analysis of road surface movements under test loading of the pavement. This technique models the ‘dry-back’ process of the road pavement material and allows the decision to be made about when it is safe to remove the load restrictions and open the road fully to all road users.
Managing traffic on saturated road pavements as the roads ‘dry-back’ is important for the safety of road users and for the life of the road asset. Traffic management measures used include:
Council understands the impact flooding has on communities and industry, and seeks your assistance in preserving our local road asset following flooding.
Council assures you that we carefully manage road closures and load restrictions to avoid permanent damage of saturated roads and to minimise disruptions to road users.
All road users are urged to follow advice provided on road closures and load restrictions, drive safely to match the conditions, obey road signs and speed limits, and look out for road workers as they go about their job repairing the roads. In doing so, everyone will play a part in looking after this important community asset.