Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect...
-
Upload
maude-janice-harrington -
Category
Documents
-
view
218 -
download
0
Transcript of Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect...
![Page 1: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/1.jpg)
Alde & Ore Estuary Partnership
A partnership set up by the community for the community to protect homes, businesses
and our environment from flooding
![Page 2: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/2.jpg)
What is The Alde & Ore Estuary Partnership (AOEP)?
• 2012 – AOEP formed to create a flood plan for the Alde & Ore Estuary
• AOEP has representatives from parishes, landowners, farmers, river users, environment experts and businesses
• support and advice given to AOEP by statutory and local government bodies
![Page 3: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/3.jpg)
The AOEP plan…
• recognises value of estuary to local economy, and value of its environmental features
• focusses on resilience and slow adaptive management through improvement of current flood defences
• looks at estuary as a whole; covering 14 flood cells and 18 parishes
• will be assessed regularly against sea-level rise and habitat change
• will be used to support planning and funding applications
![Page 4: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/4.jpg)
The AOEP plan aims to protect
• a thriving and growing visitor economy• hundreds of houses, mostly in Aldeburgh, Orford and
Snape, but scattered throughout• businesses in and around floodplain – shops,
commercial buildings, farms• infrastructure – roads, water supplies, sewerage
works, electricity supplies• 7,000 acres of farmland and grazing marsh• miles of walking along estuary banks• sailing, sailing clubs and moorings
![Page 5: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/5.jpg)
Resilience
• over the next 20-50 years, the estuary facesa greater risk of flooding from badly maintainedwalls than it does from rising sea levels
• the AOEP plan therefore takes a resilience approach
• resilience accepts overtopping will occur in surge events, but avoids catastrophic damage (such as in the 1953 flood) up to a 1:200 event occurring in 2050
![Page 6: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/6.jpg)
What is resilience?
• walls will be upgraded from their current height (2.4m –2.9m) to approx. 3.3m overall
• higher walls would be overtopped less often and be much less likely to breach, up to a 1-in-200-year (1:200) event
• walls will be upgraded according to greatest need and ‘Benefit–Cost Ratio’ (BCR) – cost and sustainability of repair weighed against value of property/infrastructure
![Page 7: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/7.jpg)
Building up walls makes overtopping less likely. Walls can be made wider on the land side, making them more resilient to breaching.
![Page 8: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/8.jpg)
Saltmarsh is often the first line of defence. It protects sea walls and absorbs wave
energy. Pilot projects to protect saltmarsh are part of the resilience approach.
![Page 9: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/9.jpg)
Benefits of resilience approach
• resilience – most cost-effective of options reviewed by AOEP
• overtopping – flood water can be pumped / drained out quickly. Damage to agricultural land is minimised and although impacts of flooding could be longer lasting for property, full recovery is still possible
• breaches – damage to property and land is greater and more costly to resolve. With breaches, flood water rises quickly and cannot be removed until breaches are mended
![Page 10: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/10.jpg)
In short, the AOEP plan allows for some overtopping in the worst tidal surges but avoids breaches, which cause
much more damage and are much more difficult to resolve.
If we have a 1:200 surge in 2050, the plan aims for this level of protection and outcome, ie some overtopping…
![Page 11: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/11.jpg)
avoiding this…
Breaches in walls are difficult and costly to repair; and may not be feasible.
![Page 12: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/12.jpg)
The consequences of flooding…
• flooded infrastructure such as roads can be an inconvenience to individuals, but have serious implications for local businesses, reducing custom and revenue in all sectors
• flooding can impact tourism – reducing the desirability of an area as a destination for visitors, and affecting recreational access for walkers, birdwatching and sailing…
![Page 13: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/13.jpg)
Why should parishes get involved?
• while flooding may affect limited property and land directly, the knock-on effects can involve the whole community
• flooding affects individuals and businesses over a wide area, not just the area directly impacted
• the benefits of communities working together are also far-reaching
• pooling our resources gives us a stronger voice when decisions are being made that affect us all
![Page 14: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/14.jpg)
Who pays?
• current Government funding policy protects housing and lives, and some fragile habitats
• in practice, urban rather than rural areas are more likely to benefit (although following the December 2013 surge, limited additional funding may be available)
• upgrading of estuary walls is likely to cost £7–10M of which only £2–3M is likely to be met by Government
![Page 15: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/15.jpg)
Raising the funds
• the plan aims to raise some of the shortfallthrough ‘Enabling Development’
• this is where landowners donate land for sale to developers and exceptional planning permission is granted
• the money raised is donated for the benefit of the estuary defences as a whole
• Suffolk Coastal District Council have strict criteria to safeguard local interests in these cases
• using a pessimistic estimate of house plot values, this could mean 5–8 new houses per parish
![Page 16: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/16.jpg)
Your views matter
• we think this is a good plan, but we needyour feedback on it – the plan cannot befinalised without it
![Page 17: Alde & Ore Estuary Partnership A partnership set up by the community for the community to protect homes, businesses and our environment from flooding.](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697bf9f1a28abf838c94ac0/html5/thumbnails/17.jpg)
Get involved
• find out more about the plan at www.aoep.co.uk• public consultation
1. visit one of our final community drop-in session3 December Orford Town Hall, Orford 2 pm –
7 pm
2. email us at [email protected]. take part in our online consultation
• consultation ends 17 December 2015 the AOEP Estuary plan will be finalised in early 2016