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North Circular aqueduct breach


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#1 MoominPapa

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Posted 11 January 2010 - 07:47 PM

Browsing through my Chrissie present book, a copy of the Shell Book of the Inland Waterways, I came upon a mention of a breach of the North Circular aqueduct in 1962. Googling finds this but nothing else. Enough to show that it was a fairly dramatic incident, but nothing more.

Going over there, I've wondered what it would be like if the contents of the canal was dumped onto the road below. Does anyone have any more info about what it was like when it really happened?

MP.
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#2 Pluto

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Posted 11 January 2010 - 07:59 PM

Browsing through my Chrissie present book, a copy of the Shell Book of the Inland Waterways, I came upon a mention of a breach of the North Circular aqueduct in 1962. Googling finds this but nothing else. Enough to show that it was a fairly dramatic incident, but nothing more.

Going over there, I've wondered what it would be like if the contents of the canal was dumped onto the road below. Does anyone have any more info about what it was like when it really happened?

MP.

It could have been reported in Waterways, the BW house magazine. They have full sets inn the archives at Gloucester and Ellesmere Port.
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#3 Tim Lewis

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Posted 11 January 2010 - 08:10 PM

Browsing through my Chrissie present book, a copy of the Shell Book of the Inland Waterways, I came upon a mention of a breach of the North Circular aqueduct in 1962. Googling finds this but nothing else. Enough to show that it was a fairly dramatic incident, but nothing more.

Going over there, I've wondered what it would be like if the contents of the canal was dumped onto the road below. Does anyone have any more info about what it was like when it really happened?

MP.



The IRA tried in 1939!

http://www.britishpa...rd.php?id=22274

Tim
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#4 Chris J W

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Posted 11 January 2010 - 08:51 PM

Have they lowered the carriage way since '39? Stupid, I know, but from the aqueduct the carriage way looks like it's much lower below it.
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#5 alan_fincher

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Posted 11 January 2010 - 09:00 PM

Have they lowered the carriage way since '39? Stupid, I know, but from the aqueduct the carriage way looks like it's much lower below it.

I guess it's widely known, but perhaps not everybody is aware ?

The current aqueduct only dates only from 1993.

It was a new structure when the North Circular was widened at this point, (the old one did not have two troughs with the central island, I think ?).

Obviously the level of the canal would be unchanged, but I guess it's possible the road got re-engineered at this time ?

From the top, I always think this structure looks older than it actually is.
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#6 wrigglefingers

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Posted 11 January 2010 - 09:12 PM

I dunno about the rest of you but I read the topic title and thought, 'bloody hell, not another one' thinking it to have happened today. Either I'm very tired or else it's a sign of the times .....
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#7 hamsterfan

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Posted 11 January 2010 - 10:06 PM

yes the original aqueduct was single and a lot shorter and yes the new road A406 is about 20ft lower than the old A406 which still runs alongside as it is a link road for the industrial estate.

Edited by hamsterfan, 11 January 2010 - 10:06 PM.

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#8 Chris J W

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Posted 11 January 2010 - 10:09 PM

Ta!

I thought it looked 'different' - but difficult to judge as I've only been across it and never (knowingly) underneath.
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#9 alan_fincher

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Posted 11 January 2010 - 10:18 PM

Ta!

I thought it looked 'different' - but difficult to judge as I've only been across it and never (knowingly) underneath.

It's only since coming back to boating, that I have actually become aware if driving under it, what it actually is. From down below, it looks much like any other rail or road bridge that might go over a major road.

Somehow it doesn't look anything like as far up, from down below, as it appears to be looking down from the top.

I don't know why I find it one of the more fascinating bits of the Paddington Arm, but if OH is at the tiller, I normally clamber on the roof to look down on the world below.

Sometimes we are moving faster than that damn traffic is!
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#10 hamsterfan

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Posted 11 January 2010 - 10:52 PM

Sometimes we are moving faster than that damn traffic is!

you really mean most of the time!!
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#11 PeterScott

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Posted 12 January 2010 - 12:41 AM

new structure when the North Circular was widened at this point [in 1993], (the old one did not have two troughs with the central island, I think ?). Obviously the level of the canal would be unchanged, but I guess it's possible the road got re-engineered at this time ?


Picture from office block's fire escape in March 1978Posted Image
and from the canal it was not particularly noticeable until passing over it Posted Image.
For comparison, from the canal in 2006:Posted Image
and towards the Travelodge which has I think just refurbished the old office building and closed in their fire-escapePosted Image
Haven't any photos which shows the relative height of the two structures

Edited by PeterScott, 12 January 2010 - 12:42 AM.

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#12 terryvanman

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Posted 12 January 2010 - 02:22 AM

I went over this a few weeks ago, it was a strange feeling gliding over stationary traffic. we moored up and walked back to the Ace cafe for a breakfast to die for [which will probably kill me at a later date]
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#13 WJM

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Posted 12 January 2010 - 08:56 AM

Would I be correct in thinking that the 'original' aqueduct dates from the 1930s modernisation programme. It certainly has that concrete look of the 30s programme. What was there before that one?
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#14 alan_fincher

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Posted 12 January 2010 - 09:15 AM

Would I be correct in thinking that the 'original' aqueduct dates from the 1930s modernisation programme. It certainly has that concrete look of the 30s programme. What was there before that one?

Well the original structure was I believe 1930s, but I doubt had to to with the modernisation program.

I'm happy to stand corrected, but I'm assuming it was first put there in the 1930s for no other reason than that's when they built the road that passed under it ?
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#15 Derek R.

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Posted 12 January 2010 - 08:11 PM

I've got some black and whites somewhere with water leaking quite badly from the old one. I think I took them just before Christmas '92, we'd tied up above awaiting the team to re-water the aquaduct during some preliminary work prior to the new one being built alongside. One firm I worked for was on the Beresford Industrial Estate at the time, which is immediately to the left of Peter's photo and on the other side.

I also remember a period when the River Brent overflowed badly. The entire length of the N. Circ was under three feet of water from the Harrow Road junction to well beyond the aquaduct. Must have been around the same time as when Catford and Lewisham were badly flooded.

Some interesting history of the River Brent HERE. Better still - the G.U. and Heinz!

It flooded again in 1999 when a water main burst. Burst main. A bit more HERE.

Derek

When the canal was built, it was built amongst relative countryside through Stonebridge Park. I'm guessing the 'New' North Circular road would have been built beneath the canal, and therefore built around 1933.

Edited by Derek R., 12 January 2010 - 08:38 PM.

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#16 Tim Lewis

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Posted 12 January 2010 - 10:13 PM

1991

Posted Image

Under construction in 1994

Posted Image

The new aqueduct was built alongside the old one then over an eight week period the old aqueduct was demolished and the new one slid into place.

Tim

Edited by Tim Lewis, 12 January 2010 - 10:15 PM.

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#17 twocvbloke

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Posted 13 January 2010 - 07:01 AM

The IRA tried in 1939!

http://www.britishpa...rd.php?id=22274

Tim


Is it me or is that vehicle on the right hand side at the end of that film fitted with a woman, I mean gas bag ontop? :lol:

They're funny looking things gas bags... :lol:
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#18 Derek R.

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Posted 13 January 2010 - 07:22 AM

Is it me or is that vehicle on the right hand side at the end of that film fitted with a woman, I mean gas bag ontop? :lol:

They're funny looking things gas bags... :lol:


One could say the same of some men.

It could have been a bag containing 'producer' gas for propulsion, but also a sheeted load of bulk produce.
Is the reason for a canvas/pvc whatever roof on a 2cv to allow for expansion of the drivers output?

Derek

Compare Tim's last shot with the one from the opposite direction in 1999 when the main burst (small pic only)
That must be 25' deep or thereabouts.

Posted Image

Edited by Derek R., 13 January 2010 - 07:27 AM.

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#19 Hairy-Neil

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Posted 13 January 2010 - 09:48 AM

Is it me or is that vehicle on the right hand side at the end of that film fitted with a woman, I mean gas bag ontop? :lol:


It's more likely a lorry with a roped and sheeted load.

Definitely BRS (Before Ratchet Straps). :lol:
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#20 Lady Muck

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Posted 13 January 2010 - 11:12 AM

The new aqueduct was built alongside the old one then over an eight week period the old aqueduct was demolished and the new one slid into place.
Tim


When they demolished the aqueduct, my partner went past there then, in his old narrowboat. They had a crane and your boat was craned out, put on a truck and then driven to another spot then craned back in - all free of charge. he says it is the fastest his boat had ever travelled.




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