Managing flood risk: hard and soft strategies
Flood management questions are almost always evaluative. This lesson gives you the strategies and, more importantly, the arguments against each.
Lesson overview
What you'll learn in this lesson
Explain fluvial processes, landforms along the long profile, flood risk and management strategies.
Key learning points
- • Hard engineering
- • Soft engineering
- • Judging a scheme
- • Case-study discipline
This lesson at a glance
- 30 minutes
- 21 parts to scroll through
- 4 quick checks
- Marked quiz at the end
- Gentle pace: short sittings with pauses
Words to know
Scroll down — the lesson carries on below
Watch & discover
Part 1 of 21
Visual introductionPicture this
Managing flood risk: hard and soft strategies
Flood management questions are almost always evaluative. This lesson gives you the strategies and, more importantly, the arguments against each.
In a nutshell
Explain fluvial processes, landforms along the long profile, flood risk and management strategies.
Learning cycle
Part 2 of 21
Learning cycle 1 of 2
Part 1 · Hard engineering
A short piece of teaching, then a check to make sure it has landed.
Explore the idea
Part 3 of 21
Learn
Hard engineering
Dams and reservoirs, channel straightening, embankments and flood relief channels. They protect high-value land effectively but are expensive, alter sediment movement, can transfer risk downstream and often damage habitats.
Reset break
Part 4 of 21
Pause
That's sitting 1 of 5 done
Stretch, get a drink, look out of the window. There is no timer and nothing is counting down — your place is saved, so you can come back in five minutes or tomorrow.
Explore the idea
Part 5 of 21
Learn
Soft engineering
Flood warnings and preparation, floodplain zoning, afforestation and river restoration. Cheaper, more sustainable and habitat-friendly, but they rely on compliance, take time to work and do not stop a flood outright.
Quick check
Part 6 of 21
Quick check
Part 7 of 21
Reset break
Part 8 of 21
Pause
That's sitting 2 of 5 done
Stretch, get a drink, look out of the window. There is no timer and nothing is counting down — your place is saved, so you can come back in five minutes or tomorrow.
Learning cycle
Part 9 of 21
Learning cycle 2 of 2
Part 2 · Judging a scheme
A short piece of teaching, then a check to make sure it has landed.
Explore the idea
Part 10 of 21
Learn
Judging a scheme
Assess by cost, effectiveness, who is protected and who is not, environmental impact and long-term maintenance. A good evaluation answers 'effective for whom, and for how long?' rather than declaring one type simply better.
Explore the idea
Part 11 of 21
Learn
Case-study discipline
Have one UK flood-management scheme ready with place name, three specific features, one benefit and one cost. Named specifics are what separates level three from level two in these answers.
Reset break
Part 12 of 21
Pause
That's sitting 3 of 5 done
Stretch, get a drink, look out of the window. There is no timer and nothing is counting down — your place is saved, so you can come back in five minutes or tomorrow.
Quick check
Part 13 of 21
Quick check
Part 14 of 21
Explore the idea
Part 15 of 21
Worked example
Model answer: 'Assess the effectiveness of a flood management scheme' (9 marks, extract)
Embankments raise the channel capacity so that a one-in-hundred-year event can pass through the town without overtopping, which protects several hundred homes and the commercial centre — clear effectiveness for the settlement itself. However, confining the river also increases velocity downstream, transferring risk to communities without defences, and the concrete structure removes marginal habitat that supported wading birds. Set against a flood-plain zoning approach, which costs almost nothing and prevents new vulnerable development, the embankment is effective in the short term for existing property but less sustainable over decades as maintenance costs rise and discharge increases with climate change.
Reset break
Part 16 of 21
Pause
That's sitting 4 of 5 done
Stretch, get a drink, look out of the window. There is no timer and nothing is counting down — your place is saved, so you can come back in five minutes or tomorrow.
Challenge round
Part 17 of 21
Game · Sort it
Which of these are true?
Drag each card into the right column. Tap a card first if dragging is fiddly.
True
Not true
Challenge round
Part 18 of 21
Game · Fill the gaps
Finish the sentences
Choose the word that belongs in each gap.
Have one UK flood-____ scheme ready with place name, three specific features, one benefit and one cost.
Challenge round
Part 19 of 21
Game · Recall cards
Which is hard engineering?
Card 1 of 4
Mastery quiz
Part 20 of 21
Marked quiz
End of lesson quiz: Managing flood risk: hard and soft strategies
4 questions, marked with the reasoning shown. No timer.
1. Which is hard engineering?
2. What is a common criticism of channel straightening?
3. Why is floodplain zoning considered sustainable?
4. What lifts a 9-mark evaluation into the top level?
Lesson round-up
Part 21 of 21
Lesson round-up
Ready when you are
Quiz score
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Luna: 0 out of 4 on the practice checks. Only if you feel up to it — one more?
Ask LunaPart 1 of 21 · Watch & discover