How is the flood risk in the Severn being managed?

Question 1

managed retreat

Answer 1

soft engineering

Question 2

dredging

Answer 2

hard engineering

Question 3

land use zoning

Answer 3

soft engineering

Question 4

channel straightening

Answer 4

hard engineering

Question 5

sand bags

Answer 5

soft engineering

Question 6

sluice galts

Answer 6

hard engineering

Question 7

widening the river channel

Answer 7

hard engineering

Question 8

planting vegetation/afforestation

Answer 8

soft engineering

Question 9

leves

Answer 9

hard engineering

Question 10

warning systems e.g. flood line, met office, text messaging

Answer 10

soft engineering

Question 11

dams

Answer 11

hard engineering

Question 12

culverts

Answer 12

hard engineering

Question 13

wing dykes

Answer 13

hard engineering

Question 14

advantages of temporary flood defences

Answer 14

can be put in place and removed later on, thereby don’t permanently obstruct views

Question 15

why are low earth embankments considered appropriate in low lying areas?

Answer 15

protect properties/agricultural land from smaller, frequent floods. They make the channel deeper and put sediment at the side, which is cheaper and doesn’t affect views

Question 16

why is river channel maintenance important in reducing flood risk?

Answer 16

we can monitor where the risks of floods are increasing and therefore reduce the impacts for those at risk

Question 17

how can resistance measures aimed at protecting individual buildings help?

Answer 17

reduce flood impacts in that area and limit problems. e.g. text messages can be sent to warn those at risk, so they can make preparations to reduce impacts

Question 18

what are blue corridoors?

Answer 18

allow flood waters to extend onto areas of low-value land e.g. playing fields and parks

Question 19

advantages of establishing temporary flood storage basisns

Answer 19

stores water. The Horsbere Broke Flood Alleviation Scheme can store up to 17,000 cubic metres of water. Also, they allow for wetland habitats to be established, benefiting biodiversity