The Planner
Veteran Member
- Joined
- 15 Apr 2008
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Its not being put over a railway, its also not going to be lifted very high at all.
Its not being put over a railway, its also not going to be lifted very high at all.
Yes it is. I watched that video at the time but I think I must have subsequently got that bridge mixed up with the other M42 crossing about five miles further south. The northern one is now visible on both Google satellite view and Streetview.Is that the one shown in post #1, the second video?
That's the one.
EDIT: I think this bridge and one under the WCML are the only major structures so far that have been built north of Delta
Is this the big truss bridge over the Lichfield lines? I’ve been interested in how they’re going to do that since there doesn’t seem to be space anywhere to assemble it or any progress made so far.They won't get picked up, they will be built on site and pushed over. The viaduct pushes are meant to be the back end of 2025.
Both, the one at Landor St and the one over the Cross CityIs this the big truss bridge over the Lichfield lines? I’ve been interested in how they’re going to do that since there doesn’t seem to be space anywhere to assemble it or any progress made so far.
Is this the big truss bridge over the Lichfield lines? I’ve been interested in how they’re going to do that since there doesn’t seem to be space anywhere to assemble it or any progress made so far.
Yeah for the truss bridge there’s notably no sign of it and (as far as I can tell) no space nearby big enough to assemble it fully. Unless they’re planning on doing it where the current weathering steel bridge is being built, but then surely they’d have wanted to do it before that bridge?This is from HS2 website that shows the different parts of the approaches.
View attachment 157169
The four viaducts that fan out are built. Next, there are four weathered steel supports that support the canal crossing. These are in situ although mostly under cover. The larger piers approaching the truss bridge are built. The long weathered steel structure that sits on these is being built, but looks like it needs lifting and turning into position.
As for the truss bridge (Curzon no 2), I haven’t seen any sign of this yet but I expect @The Planner knows more.
This is a pretty up to date flyby…
It might be being pre-assembled elsewhere.Yeah for the truss bridge there’s notably no sign of it and (as far as I can tell) no space nearby big enough to assemble it fully. Unless they’re planning on doing it where the current weathering steel bridge is being built, but then surely they’d have wanted to do it before that bridge?
I don’t think it’s the deck of the truss bridge but as you say the bit next to it, between the truss bridge and the canal. It may be that it’s just one half of it in fact. Perhaps that goes in first and then they build a second one that does fan out a bit as the tracks start to diverge.If it was the part between the truss bridge and viaducts, would expect it to be wider one end, which doesn't appear to be.
Perhaps it will be assembled on the other side of the tracks? Thee does seem to be some work area adjacent where it could be constructed?Unless they’re planning on doing it where the current weathering steel bridge is being built, but then surely they’d have wanted to do it before that bridge?
First completed sections of HS2 Curzon Street station viaduct revealed
New images released of the first completed sections of the viaduct that will bring high speed trains into Birmingham’s new Curzon Street station View and download photos heremediacentre.hs2.org.uk
I find the idea of moving a really big lump of bridge to over a road in several small steps very odd - how do you stop with it halfway across? No doubt it will all become clear when they do it!...later this year, the construction of the span over Digbeth Canal will commence using jacks to slide 34 temporary steel girders, each measuring 38 metres long, below the four steel tripods to support the falsework and formwork, necessary for the deck construction.
The large arched span over Lawley Middleway is made from weathering steel girders, and is currently being built on the site. It will be moved into place over the road during a series of short night-time road closures in the summer. Building it in this way drastically cuts disruption to road users.
Yeah for the truss bridge there’s notably no sign of it and (as far as I can tell) no space nearby big enough to assemble it fully. Unless they’re planning on doing it where the current weathering steel bridge is being built, but then surely they’d have wanted to do it before that bridge?
I guess we will see!I find the idea of moving a really big lump of bridge to over a road in several small steps very odd - how do you stop with it halfway across?
Is it just their way of describing the technique of using horizontal hydraulic jacks with a relatively short stroke, and repositioning the jacking point between moves? That‘s basically how they recently pushed a bridge span over the M42/M6 link roads, (post #150).I find the idea of moving a really big lump of bridge to over a road in several small steps very odd - how do you stop with it halfway across? No doubt it will all become clear when they do it!
But can this structure be pushed in the same way as the M42/M6 link viaducts? The base appears to be an arch, and I’d have thought it would need to be flat in order to slide it?Is it just their way of describing the technique of using horizontal hydraulic jacks with a relatively short stroke, and repositioning the jacking point between moves? That‘s basically how they recently pushed a bridge span over the M42/M6 link roads, (post #150).
It does say "moved into place over the road during a series of short night-time road closures".Is it just their way of describing the technique of using horizontal hydraulic jacks with a relatively short stroke, and repositioning the jacking point between moves? That‘s basically how they recently pushed a bridge span over the M42/M6 link roads, (post #150).
That's the Curzon No. 2 viaduct - aka the truss bridge - see above (#185) or HS2's description:What structure will carry HS2 over or under the existing railway in the vicinity of Viaduct Street, St James' Place and Northumberland Street? Is there any info about it?
A truss bridge is light but strong, composed of connected elements that form triangular units, and is economic to build because it’s constructed using a relatively small amount of material. This makes the truss form ideal to assemble offline and then launch from one end and in one piece across the existing railway viaduct below. A truss is the most efficient structural form for a “launching” process, and this is likely to be one of the largest bridge launches ever carried out in the UK.
The gently curved truss is 150-metres long and 25 metres tall. It will be assembled on the ground and then launched into its final position over the existing Victorian brick rail viaduct at around 17 metres above the ground, so the whole structure will be 40 metres high.
HS2 fly through of the Phase One route between Birmingham and London
What sort of info?Does anyone have any information on Curzon No.1 viaduct? The only image I've found is from this yt video
what it looks like... contrsuction progress.. design etc. anything tb. google yields very littleWhat sort of info?
Thanks!
I regularly get the train past it between Birmingham and Leicester.Does anyone have any information on Curzon No.1 viaduct? The only image I've found is from this yt video
The track at Duddeston is commissioned over August.I regularly get the train past it between Birmingham and Leicester.
The abutment at the London end (so next to the XC tracks) is coming along well, lots of rebar in place and quite a few sections of concrete cast now. This was when I last travelled there nearly a month ago so I’m sure it’s progressed more by now.
Also, a new bridge over Duddeston Mill Road is needed to divert freight lines to make way for one of the piers. The bridge is in place now, it was lifted in with a big crane at some point. Last time I saw, it was finished and ballasted but did not have any tracks laid. As soon as that’s done, they’ll be able to start building the pier that lies in between the tracks.
There’s also been quite a bit of work on the foundations and piers for the rest of the viaduct heading towards Curzon St, although it’s hard to see from the XC line.
How come you have that section of near completed viaduct whilst Nothing but site clearance seems to have occurred on the station site? Must be a hell of a lot of piling to be done there?Wandering Northerner's done a very detailed fly over of Curzon no.3 and station site, with some very good views of the viaduct and forthcoming works. Station site still looks pretty untouched mind you.
Thanks for posting very good drone overview of the works hereWandering Northerner's done a very detailed fly over of Curzon no.3 and station site, with some very good views of the viaduct and forthcoming works. Station site still looks pretty untouched mind you.
Because there was nothing to be done at that end of the plot, whereas the station area had buildings and ulitities to move. Plus the tram route being done there now.How come you have that section of near completed viaduct whilst Nothing but site clearance seems to have occurred on the station site? Must be a hell of a lot of piling to be done there?
Jago Hazzard on Instagram: "Down a hole at Washwood Heath. #washwoodheath #birmingham #highspeed2 #hs2 #trains"
178 likes, 3 comments - jagohazzard on May 14, 2024: "Down a hole at Washwood Heath. #washwoodheath #birmingham #highspeed2 #hs2 #trains".www.instagram.com