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The Norfolk Broads Forum / General Chat / clearance under bridges
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Posted By Discussion Topic: clearance under bridges

Similar Threads That Might Help :
Bridge Clearance for Fair Lowliner style| Yamouth Bridge Clearance| Wroxham Bridge ---- Clearance Question| bridge clearance at Ludham| bridge height clearance request| Yarmouth bridge clearance...|

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kevbro
Feb-24-2016 @ 3:22 PM                           Permalink
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Knows that Roys is in Hoveton
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Hi all this may be a silly question but if a bridge marker was showing 8ft6 clearance and the airdraft on the boat was 8ft6 would you risk going under bridge  Confused

ncsl
Feb-24-2016 @ 3:30 PM                           Permalink
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I thnk a lot would depend upon the boat "owner" .
If they knew their boat then it would be up to them.
This video shows me going under Wroxham with the bridge height showing 6 6".  My boat measured 6 8".

https://www.youtube.com/watch?v=P8tJ7rnCHeg


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Paladine
Feb-24-2016 @ 3:45 PM                           Permalink
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In my boat, yes. In your boat, no.

On an arched bridge, it's not usually the height in the middle that's the problem, it's the width of the top of the boat. Not uncommon for handrails at the sides of cabins to be ripped off.

A good motto in these cases is, 'If in doubt, DON'T'

"..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)

Perfectlady9
Feb-24-2016 @ 4:12 PM                           Permalink
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We went through Ludham from Stalham on Saturday, the upstream gauge was showing 8ft and our boat needs 8ft so we dropped the roof.  We went through with about 6 inches to spare.  On the way back the downstream gauge was showing 8-2 ft so we decided to go with the roof up and had around 3-4 inches to spare .  Would I do it in someone else's boat    No but I guess it's down to knowing your boat.

Doug.

Now I know what Trigger meant
about his Broom !
The Moore the merrier.

kevbro
Feb-24-2016 @ 4:39 PM                           Permalink
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Thanks you I think I will stick with if in doubt dont Playful Wink

boat-mad
Feb-24-2016 @ 4:51 PM                           Permalink
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Hi Kevbro,

I'm as sure as I can be that on hire boats they add a little to the given air draft figure to allow a little extra clearance.  Having said  I always ensure that I can  see the required minimum level plus 1 or 2 inches on the bridge gauge clearly at all times allowing for water movement. Better safe than sorry. Scared

I ask the question when picking up a boat. If the bridge gauge is showing the exact figure that the boat plaque displays the air draft can I proceed or do I have to add a little extra?
I have so far been told that a little extra is already built into the figures provided.

As Already stated arched bridges like Wroxham may require more clearance . For many hire boats it is compulsory for you to have a Pilot take the boat through.Wroxham bridge but many use the pilot regardless.  As you are probably aware Potter Heigham bridge it is compulsory for all hire craft to use the pilot service.


Kind Regards
Alan...
www.mynorfolkbroadsboating.co.uk/


This message was edited by boat-mad on Feb-24-16 @ 3:58 PM

Luise
Feb-24-2016 @ 5:08 PM                           Permalink
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Mine's 2.37m (7’10”) with the mast lowered.

If the gauge shows 2.50m I go for it, if it shows 8’ I think twice. And then wimp out…

Peter

dannyboy
Feb-24-2016 @ 7:04 PM                           Permalink
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Make sure you arrive on a falling tide... long wait otherwise!!


Danny


ruby
Feb-24-2016 @ 8:40 PM                           Permalink
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As others have said on the arched bridges it is the cabin top width rather than the actual height that is most likely to cause  the problem.

Personally I don't think enough guidance is given on that aspect as everyone seems to fixate on bridge heights.

Have fun

Graham

Ian141
Feb-24-2016 @ 10:11 PM                           Permalink
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I used to enjoy going under Wroxham Bridge. Have done so with Richardson's boats on many an occasion, and never had an issue...

The new pilot rule is I suppose understandable. But frustrating for those that have already experienced the fun and challenge of planning passage underneath!

Buy a secondhand boat and cast off in someone else's cast off...


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