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Mon, 11 Apr 2016 7:20 am BST- Light Rain
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Posted By Discussion Topic: Broads Flooding

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RAB
Nov-20-2018 @ 12:03 PM                           Permalink
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We are approaching the winter and again flooding is to be expected.The saltwater surges are going to continue and probably increase over time.
I would like to see action taken to protect the broads and a solution would be to add a lock and sluice gate at Berney Arms and add a new riverbank just on the saltwater side of Breydon water so that the Bure would be directed along side Breydon to the Yare at Berney Arms.
The sluice would isolate the river system from the seawater only allowing freshwater out. A turbine could be employed to generate electricity by the outflowing water. The money generated could pay for the upkeep. The lock gates could be operated remotely by the Breydon Bridge operator like many locks in Holland.
Nearly all rivers on the East coast have sluices to prevent flooding and I think the Broads should be similarly protected.
It would also make the broads safer as it would eliminate the fast currents and large tidal ranges at Yarmouth yacht station and Reedham etc.
The complete Broads river system would be become freshwater and not brackish as now. Breydon Water would remain as a natural saltmarsh.
I think this would have benefits for tourism, Broads users and everybody.
Can the BA investigate this solution.

TerryTibbs
Nov-20-2018 @ 12:35 PM                           Permalink
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I removed this part of the post as I realised my own stupidity. Blush

"The sluice would isolate the river system from the seawater only allowing freshwater out. A turbine could be employed to generate electricity by the outflowing water. The money generated could pay for the upkeep."

If it's only allowing fresh water out I assume that would only be water that flows into the rivers from run off, how much electricity would that generate? Not a lot would be my guess, certainly not enough to cover the upkeep and running costs of this system never mind the initial cost.

Taking away the tidal flow would also result in more sediment settling in the rivers and leading to silting up and hence more costs in dredging.

Dave

if it is to be it is up to me.

This message was edited by TerryTibbs on Nov-20-18 @ 2:43 PM

Cocklegat
Nov-20-2018 @ 3:11 PM                           Permalink
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The Hydrology of the Broads is pretty well established. The Flood alleviation scheme studied this in some detail.
The solution to the ingress of salt water into the upper reaches can only come from long term planning and the introduction of a flood barrier at Great Yarmouth, something that has been looked at several times in the past.

Marshman
Nov-20-2018 @ 3:13 PM                           Permalink
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With respect, probably addressed to the wrong body! I always thought that the EA were responsible for controlling the flooding which is why £22m or so has been spent by them over the last 10 years to control flooding in Broadland for the foreseeable future.

steve
Nov-20-2018 @ 5:49 PM                           Permalink
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Agree , really a question for the environment agency, but be interesting to the BA have to say ,

steve and vicky
( apparently a moaner)

Exile
Nov-20-2018 @ 11:45 PM                           Permalink
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Nature always does things better than when we interfere. That is a lesson that we all should be aware of and respect. Leave things as they are and stop trying to change the the natural world.


Helmsman1946
Nov-20-2018 @ 12:30 AM                           Permalink
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http://www.broads-authority.gov.uk/__data/assets/pdf_file/0008/1036781/2017s5962-Great-Yarmouth-SFRA-Final-v2.0.pdf

Online page 41 includes BA responsibility & the rest all you need to know about flooding around the Broads

Peter

Paladine
Nov-21-2018 @ 8:14 AM                           Permalink
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”Nature always does things better than when we interfere. That is a lesson that we all should be aware of and respect. Leave things as they are and stop trying to change the the natural world.”

The Broads is largely a man-made environment, which requires constant management.


"..for the avoidance of any doubt, the broads are not legally a national park and do not come under the national park legislation, and nor will they."
Parliamentary Under-Secretary of State for DEFRA (Hansard 2015)

JP
Nov-22-2018 @ 3:52 PM                           Permalink
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Dear RAB,

Thank you for the question and for the idea.

Two main points come to mind.

(i) The Broads Authority has investigated the installation of a tidal generator in the Lower Yare. This showed that the amount of electricity generated could fund the operational costs but would be unable to make any contribution to the capital costs.

(ii) Working under the banner of Broadland Futures with the Environment Agency and others (Natural England, NFU, Local Authorities, IDBs etc.) we have identified the need for a project to look at the relationship between coastal flood management and flood protection within the Broads. The Environment Agency has been able to allocate £1.5 million over the next five years to this – a series of projects to give us a greater understanding of the options available and their pros and cons. This work will start next year.

Regards

John


JP
Nov-22-2018 @ 3:53 PM                           Permalink
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Dear Marshman,

You are quite correct the Environment Agency is the body with responsibility for flood protection.

However, Broadland Futures – integrated flood risk management - is one of the Broads Authority’s strategic priorities and in November 2016 we took the initiative to bring together key stakeholders at Carrow Road to examine the potential long term costs.

The Broadland Flood Alleviation Project is a 20 year programme starting in 2001 at a cost of £100 million which is coming to an end and one of the big issues for the Agency and for us is what follows on afterwards.

Regards

John



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