CASE STUDY - Keta, Ghana

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Last updated 3:04 PM on 4/16/24
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9 Terms

1
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What is Keta’s population?

Over ¼ of Ghana’s population

2
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How much does Keta contribute to Ghana’s annual fish capture production?

80%

3
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Why are defences necessary at Keta?

  • Construction of hydroelectric dam put the entire coast of keta under intense flooding and erosion

  • Coastal erosion has caused the displacement of coastal communities

4
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What coastal defence strategies have been implemented?

  • Groynes

  • Sea wall

  • Beach nourishment

  • Land reclamation

5
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What stretch of coastline does the sea wall protect?

Keta → Hlorve

<p><span style="color: blue"><mark data-color="blue">Keta → Hlorve</mark></span></p>
6
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What was the cost of Keta’s sea wall?

4.1 million euros

7
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How many groynes have been built at Keta? What is the total length?

  • 6

  • 180m

8
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What are the positive impacts of the Keta coastal defence project?

  • Erosion greatly reduced

  • Kedzi-Keta shortline stabilised

  • Groynes secured 7.5km of coast

  • Prevented flooding

9
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What are the negative impacts of the Keta coastal defence project?

  • Accretion of sediment in the west, but deprivation in the east

  • Groynes starved Kedzi → Hlorve of sediment