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The Norfolk Broads Forum / ASK JP / High water levels and dredging of the lower bure
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Posted By Discussion Topic: High water levels and dredging of the lower bure

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JanetAnne
Apr-28-2016 @ 5:56 PM                           Permalink
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I own a number of old broads cruisers, all wooden and mostly from the 60's. They all used to fit under Potter Bridge week in week out when in the hire fleets yet now we struggle time and time again for clearance.

Whilst I accept we are seeing climate change and possibly rising sea levels(an inch in 50 years so maybe not that relevant here), my question refers to the seemingly total lack of dredging of the lower Bure leading to artificially high water levels on the northern rivers and subsequent loss of access through Potter, Wroxham and on occasions Ludham bridges. Its not a case of buying the wrong boat - these have been on the network for decades!

Yes, I accept that some small amount of work has been done but the torrent of water we experience through Yarmouth twice a day surely must suggest that the water is trying to escape but the flow is restricted.

I've been on the broads for close to 40 years now and the situation is just getting worse and worse.

In the meantime we have a yacht stuck on its mooring at Catfield that we cant get out of the dyke because of running aground. We have just paid for another years toll which, I believe, is for access to the whole network not just Catfield Dyke?

I seriously wonder whether navigation is a priority still?

If I am a "woody" how come there are no "fibreglassy's" "plasticy's" or "steelies"?

JP
Apr-28-2016 @ 7:26 PM                           Permalink
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Dear JanetAnne,

In the last 3 years the BA has dredged over 70,000m3 from the river Bure, however the modelling that we carried out as part of the Sediment Management Strategy showed that dredging has minimal impact on water levels.

In fact, the Bure Loop acts a throttle in the system and restricts the flow of water heading upstream from Great Yarmouth which is why the waterway specification was restricted by agreement with Natural England to reduce the potential for saline incursion.

Generally speaking, water levels are more influenced by atmospheric conditions and rainfall in headwaters and there is good evidence from the bridge pilot records at Potter Heigham that water levels have increased over the last 30 years.

We have also spent a lot of time, energy and money in agreeing a vision for Hickling which is allowing us to carry out dredging on this very sensitive site, and will include Catfield Dyke in a later phase.

Regards

John

JanetAnne
Apr-28-2016 @ 7:58 PM                           Permalink
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So the lower bure is being deliberately allowed to silt up? Lets just hope,bearing in mind its current rate, that at least some navigable channel is allowed to remain!

And as for the other bit, anybody want to buy a yacht? Suitable for use as a houseboat as unable to leave its mooring till dredged at "in a later phase"

If I am a "woody" how come there are no "fibreglassy's" "plasticy's" or "steelies"?


This message was edited by JanetAnne on Apr-28-16 @ 7:59 PM


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