Cliff regrading and drainage

• What is cliff regrading and drainage?

  Cliff regrading reduces the angle of the cliff to help stabilise it. Drainage removes water to prevent landslides and slumping.
• What are some advantages of cliff regrading and drainage?

  Some advantages of cliff regrading and drainage are:

  • Regrading can work on clay or loose rock, where other methods won't work
  • Drainage is cost-effective
• What are some disadvantages of cliff regrading and drainage?

  Some disadvantages of cliff regrading and drainage are:

  • Regrading effectively causes the cliff to retreat
  • Drained cliffs can dry out and collapse (rock falls)