Rivers (flood management)

?
  • Created by: revision
  • Created on: 09-03-17 19:43
Hard engineering Channel straightening
Water moves out of the area more quickly because it doesn't travel as far-reducing the risk of flooding. BUT flooding may happen downstream the straightened channel instead, as flood water is carried there faster.
1 of 5
Hard engineering Man-made levees
The embankments mean that the river channel can hold more water, which reduces the risk of flooding. They're also quite cheap. BUT if the levees fail it can cause catastrophic flooding.
2 of 5
Soft engineering Flood warnings
The impact of flooding is reduced-warnings give people time to move posessions upstairs,put sandbags in position and to evacuate. BUT warnings don't stop a flood from happening. People may not hear or have access to warnings.
3 of 5
Soft engineering Flood plain zoning
The risk of flooding is reduced-impermeable surfaces aren't created. The impact of flooding is reduced there aren't any houses or roads to damage. BUT The expansion of urban area is limited there aren't any other suitable building sites.
4 of 5
none
none
5 of 5

Other cards in this set

Card 2

Front

Hard engineering Man-made levees

Back

The embankments mean that the river channel can hold more water, which reduces the risk of flooding. They're also quite cheap. BUT if the levees fail it can cause catastrophic flooding.

Card 3

Front

Soft engineering Flood warnings

Back

Preview of the front of card 3

Card 4

Front

Soft engineering Flood plain zoning

Back

Preview of the front of card 4

Card 5

Front

none

Back

Preview of the front of card 5

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Water and rivers resources »