How can rivers be managed using hard engineering strategies?

In this lesson, we will learn about four types of hard engineering strategies that can be used to manage river flooding. We will also evaluate these strategies.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.A hydrograph shows...

How much sea water is on Earth. How river discharge changes overtime, in relation to rainfall. When a storm event will occur.

1/6

Q2.Lag time is...

The highest amount of rainfall (the highest bar on the hydrograph). When river discharge is at its highest, within the given time frame. The time delay between the peak rainfall and peak discharge.

2/6

Q3.The rising limb shows...

The increase in river discharge as rainwater enters the river channel. The decrease in river discharge, as the river returns back to normal (base flow). Water flowing over the land.

3/6

Q4.A short lag time means...

Rainwater is entering the river channel very slowly. Rainwater is entering the river channel very quickly.

4/6

Q5.Impermeable soils and rocks do not allow...

Infiltration and percolation. Precipitation. Urbanisation.

5/6

Q6.Deforestation reduces...

Surface runoff. Interception and transpiration. Urbanisation.

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.A hydrograph shows...

How much sea water is on Earth. How river discharge changes overtime, in relation to rainfall. When a storm event will occur.

1/6

Q2.Lag time is...

The highest amount of rainfall (the highest bar on the hydrograph). When river discharge is at its highest, within the given time frame. The time delay between the peak rainfall and peak discharge.

2/6

Q3.The rising limb shows...

The increase in river discharge as rainwater enters the river channel. The decrease in river discharge, as the river returns back to normal (base flow). Water flowing over the land.

3/6

Q4.A short lag time means...

Rainwater is entering the river channel very slowly. Rainwater is entering the river channel very quickly.

4/6

Q5.Impermeable soils and rocks do not allow...

Infiltration and percolation. Precipitation. Urbanisation.

5/6

Q6.Deforestation reduces...

Surface runoff. Interception and transpiration. Urbanisation.

6/6

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

How can rivers be managed using hard engineering techniques?

Complete the sentences below to show that you understand the key learning from the lesson. Good luck!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.Hard engineering means...

To use artificial structures to defend against natural processes. To manage rivers more sustainably. To stop managing rivers.

1/6

Q2.A dam is...

An artificial lake. An artificially raised river bank. A concrete barrier built across a river channel.

2/6

Q3.Kielder dam and reservoir...

Cost £11, 000 to build. Cost £6 million to build. Cost £167 million to build.

3/6

Q4.Channel straightening also involves...

Widening the channel and making it shallower. Narrowing the channel and making it deeper. Widening and deepening the channel.

4/6

Q5.Embankments...

Increase the capacity of the river. Involve creating a dam across the river. Are very cheap to build.

5/6

Q6.The flood relief channels on the River Exe...

Protect 30 properties. Protect 300 properties. Protect 3000 properties.

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

How can rivers be managed using hard engineering techniques?

Complete the sentences below to show that you understand the key learning from the lesson. Good luck!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.Hard engineering means...

To use artificial structures to defend against natural processes. To manage rivers more sustainably. To stop managing rivers.

1/6

Q2.A dam is...

An artificial lake. An artificially raised river bank. A concrete barrier built across a river channel.

2/6

Q3.Kielder dam and reservoir...

Cost £11, 000 to build. Cost £6 million to build. Cost £167 million to build.

3/6

Q4.Channel straightening also involves...

Widening the channel and making it shallower. Narrowing the channel and making it deeper. Widening and deepening the channel.

4/6

Q5.Embankments...

Increase the capacity of the river. Involve creating a dam across the river. Are very cheap to build.

5/6

Q6.The flood relief channels on the River Exe...

Protect 30 properties. Protect 300 properties. Protect 3000 properties.

6/6

Lesson summary: How can rivers be managed using hard engineering strategies?

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The next lesson in Rivers is "Soft engineering river management (Part 1)"

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