2482676
Rivers - Hard/Soft
Engineering in Sheffield 2007
- Soft
- Meanders
- Some were rebuilt (after
being straightened in 19th
century), lengthening river
and slowing down water
- Some were rebuilt (after
being straightened in 19th
century), lengthening river
and slowing down water
- Banks -
Washlands
- Lowered to make the river flood the park instead of Darlington
- Lowered to make the river flood the park instead of Darlington
- Floodplain
- Lowered to
increase it's
ability to
store water
- Lowered to
increase it's
ability to
store water
- Successful?
- River Skerne flooded
- But the rainfall
was exceptional
- But the rainfall
was exceptional
- The damage was still less than the year 2000 floods
- 30% increase in birds and insects in 1 year
- River Skerne flooded
- Meanders
- Hard
- Flood storage reservoirs
- Did work
- Lakes have been shaped from old
quarries in Rother Valley Country Park
along the River Rother to take floodwater
- Did work
- Embankments
- Didn't work
- Not high enough
- Not high enough
- Built around Meadowhall Shopping Centre to hold off water
- Didn't work
- Concrete-lined Channel
- Did work
- Where River Sheaf
joins River Don, it has a
concrete-lined channel
to speed up flow
- Did work
- Drains & Culverts
- Didn't work
- Designed to deal with 1-in-30 years
floods, but 2007 was 1-in-400 years
- Designed to deal with 1-in-30 years
floods, but 2007 was 1-in-400 years
- Didn't work
- Flood storage reservoirs
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