Mass Movements: Overstrand, North Norfolk coast

Question 1

When were mass movements mainly?

Answer 1

1990’s

Question 2

How much did the council spend on management?

Answer 2

£3 million

Question 3

What 3 HARD engineering techniques have been put in place?

Answer 3

• Rock armour at base of the cliff (costing £1000 a rock)
• Groynes to trap sand and build up beach.
• Revetements.

Question 4

What 3 SOFT engineering techniques have been put in place?

Answer 4

• Clay and sand layers mixed together to increase permeability.
• Drainage pipes planted to drain excess water.
• Slope re-graded to a lower angle, reduce likelihood of mass movements.