Case study for soft engineering - Wallasea Island Flashcards
1
Q
Where is Wallasea located? (Wallasea coasts)
A
Essex
2
Q
What were the issues with the past? (Wallasea coasts)
A
- Lack of maintenance to the Northshore wall
- 2004 only protection (sea wall) collapsed
- high risk of flooding
3
Q
What are some of the risks to the area? (Wallasea coasts)
A
- Sea level rise has eroded marshlands and wetlands
- 2,700 properties exist in that area
- 9,500 hectares of land under threat
4
Q
What management strategy was chosen? (Wallasea coasts)
A
Realignment
5
Q
Why was this strategy chosen? (Wallasea coasts)
A
- attraction of wildlife
- reducing the damage to surrounding area
- no adverse effect
- no opposition
6
Q
What was stage 1 of this process? (Wallasea coasts)
A
- build fresh water dyke
- retain wall built
- develop new beach
7
Q
What was stage 2 of this process? (Wallasea coasts)
A
- 700,000 tonnes of mud pumped
- only clean materials used
8
Q
What was stage 3 of this process? (Wallasea coasts)
A
- final landscaping
- Wetland covered
9
Q
How much was the final cost of the project? (Wallasea coasts)
A
£8 million
