Log In
6 votes
What is causes of the road subsidence?

How big is the impact of unmaintained road crossing culverts towards the occurrences of road subsidence?
in Road 48,820 points 106 195 351

1 Answer

4 votes

The causes of road subsidence are:

  1. Flood:
    • Flash Flood - Usually happens in urban areas because drainage system insufficient and is not managed effectively.
    • Mudflows - Happen in slope area and sensitive area.
    • River Flood - Occurring when a water body exceeds its capacity and the nearby area will affected.
  2. Road drainage system maintenance is not effective.
  3. Road level is designed below flood level.
3,280 points 4 13 26