A30 Carland Cross Chiverton Cross

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Hdeng16
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Re: A30 Carland Cross Chiverton Cross

Post by Hdeng16 »

RichardEvans67 wrote: Tue Apr 12, 2022 13:37
by adam 1972 » Mon Apr 11, 2022 16:00

Chybucca temporary layout https://mcusercontent.com/1d4eb632df7c9 ... rawing.pdf
That's a significant departure from the plans previously found online.
Looks like the right turn from the B3284(S) to the A30(E) is important enough to keep it open.
It's nothing like the original plans is it? Maybe they've learnt from the Welsh who seem to like building temporary roundabouts everywhere for big projects. Thing is, there will be queues through the summer, but the roundabouts do seem to work fairly effectively. IE: The queues aren't actually as bad as you'd expect at the temporary points.
RichardEvans67
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

by Sam S » Mon Apr 11, 2022 22:54

The first is a view East towards Carland Cross taken on the Zelah bypass from the existing Tolgroggan overbridge.
I wonder why the traffic management under the bridge has had to be there for so long. They still don't appear to have done anything to the old bridge, or to start building the new one. But it seems ages since they put in place the current arrangements under the bridge.
RichardEvans67
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

by Hdeng16 » Tue Apr 12, 2022 13:49

It's nothing like the original plans is it? Maybe they've learnt from the Welsh who seem to like building temporary roundabouts everywhere for big projects. Thing is, there will be queues through the summer, but the roundabouts do seem to work fairly effectively. IE: The queues aren't actually as bad as you'd expect at the temporary points.
I'm still wondering about whether they would need some temporary traffic signals, to give the A30 traffic some priority when it gets busy.
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A303Chris
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Re: A30 Carland Cross Chiverton Cross

Post by A303Chris »

adam 1972 wrote: Mon Apr 11, 2022 16:00
A30 Traffic Management Alert
Temporary week night and weekend closure, A30 Chiverton Roundabout to Boxheater

Costain, on behalf of National Highways, will be undertaking work at various locations along the temporary closed sections of the A30 Chiverton to Carland Cross road improvement scheme. This will facilitate the installation of a temporary roundabout, to replace the current staggered crossroads.

The temporary Chiverton Cross to Boxheater Junction closure, will be nightly from Monday the 16 May 2022 to Thursday the 19 May 2022, from 2000hrs (8pm) to 0600hrs (6am). Then at the weekend it will be closed 24 hours a day, from Friday the 20 May at 2100hrs (9pm) to Monday the 23 May at 0600(hrs) 6am
Chybucca temporary layout https://mcusercontent.com/1d4eb632df7c9 ... rawing.pdf

Diversion Route https://mcusercontent.com/1d4eb632df7c9 ... 764dbf.jpg
That seems a considerable amount of temporary roads including a roundabout for the traffic management. Why does it have to be so big, I presume it's for the new Chybucca junction, but trying to the plans of the scheme on the NE website is like looking for a needle in a haystack.
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RichardEvans67
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

by A303Chris » Tue Apr 12, 2022 14:13

That seems a considerable amount of temporary roads including a roundabout for the traffic management. Why does it have to be so big, I presume it's for the new Chybucca junction, but trying to the plans of the scheme on the NE website is like looking for a needle in a haystack.
Well. I think a lot of the temporary routes are adapting roads that are going to be permanent eventually. Or using existing roads. There are a few extra bits, where they need to move traffic away from where they are going to build embanked stuff, for the new junction. Plus the temporary roundabout, but it's not really a big roundabout.

Edit:
As I see it.
NW of the roundabout is almost entirely the new B3284.
NE of the roundabout, starts of on the new B3284, but then needs a fair length of temporary route to go around the junction works, and then tie into the A30 to the East.
SE of the roundabout, is partly the existing B3284, but with the temporary realignment to go around the junction works.
SW is mostly the Existing A30 westbound carriageway.
adam 1972
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Re: A30 Carland Cross Chiverton Cross

Post by adam 1972 »

RichardEvans67 wrote: Tue Apr 12, 2022 13:37 That's a significant departure from the plans previously found online.
Looks like the right turn from the B3284(S) to the A30(E) is important enough to keep it open.
I was thinking that also, every time I have driven the B3284(S) to the A30 since the no right turn was put in place people are just ignoring it & turning right anyway.
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

Noticed, they've now added the scheme to Open Street map
https://www.openstreetmap.org/#map=16/50.3203/-5.0795
Although I think they've got quite a few of the details wrong.

For starters, they show the Zelah Bypass taking rather a diversion.
Plus at Chiverton, they show the New A390 link using part of the old A3075, which I don't think is right.
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Re: A30 Carland Cross Chiverton Cross

Post by adam 1972 »

RichardEvans67 wrote: Tue Apr 12, 2022 15:54 Noticed, they've now added the scheme to Open Street map
https://www.openstreetmap.org/#map=16/50.3203/-5.0795
Although I think they've got quite a few of the details wrong.

For starters, they show the Zelah Bypass taking rather a diversion.
Plus at Chiverton, they show the New A390 link using part of the old A3075, which I don't think is right.
Also Chybucca is wrong, they have put the new junction in the wrong place, should be further east.
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

by adam 1972 » Tue Apr 12, 2022 16:46

Also Chybucca is wrong, they have put the new junction in the wrong place, should be further east.
I noticed that afterwards. Also the Chiverton Roundabout is too far to the East, and I think the alignment there is a bit too close to Treviome Park.

There are lots of bits that I think are a bit wrong, but at least they made an attempt.
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Re: A30 Carland Cross Chiverton Cross

Post by Gaz909909 »

RichardEvans67 wrote: Wed Apr 13, 2022 09:04
by adam 1972 » Tue Apr 12, 2022 16:46

Also Chybucca is wrong, they have put the new junction in the wrong place, should be further east.
I noticed that afterwards. Also the Chiverton Roundabout is too far to the East, and I think the alignment there is a bit too close to Treviome Park.

There are lots of bits that I think are a bit wrong, but at least they made an attempt.
The kink around the Zelah bypass is considerably incorrect! Good attempt though.... Improvement needed!
RichardEvans67
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

https://apps.sentinel-hub.com/sentinel- ... ates=false

Looking at Sentinel Playground, for 19th April. You can make out where the temporary Chybucca roundabout is going to go.
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Re: A30 Carland Cross Chiverton Cross

Post by Gaz909909 »

Good spot again Richard. They're really cracking on with that now. Hopefully not long to wait until another aerial video shows progress towards Chivvy X too.
BF2142
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Re: A30 Carland Cross Chiverton Cross

Post by BF2142 »

RichardEvans67 wrote: Sun Apr 24, 2022 19:03 https://apps.sentinel-hub.com/sentinel- ... ates=false

Looking at Sentinel Playground, for 19th April. You can make out where the temporary Chybucca roundabout is going to go.
This is a great find, thank you. I can really see the progress across the the whole route.
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

https://www.ice.org.uk/events/past-even ... eme/#watch

On this page is a very recent webinar from Costain.
It is rather long, so if you don't want to watch the whole thing, I think the interesting parts are :

From start to about 18 min. What they are doing and progress to date.
Around about 30 min. Spot the Robot Dog.
About 50 min to the end. Questions.

I haven't so far read the rest of the page, I assume it will be things covered in the video.
BF2142
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Re: A30 Carland Cross Chiverton Cross

Post by BF2142 »

Interesting little presentation. Thanks for sharing it. It's going to make a big difference to travelling through Cornwall.
Sam S
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Re: A30 Carland Cross Chiverton Cross

Post by Sam S »

From a local community group:

Some residents have received notice of major earth moving during a week of nights commencing the 16 May 2022 and possibly the weekend during the day as well at the end of that week.

This will be starting to take away the soil on the East side of the lane adjacent to the A30 as show in the attached image. It will involve one machine, which will be removing the soil and a series of 8-wheel HGV’s moving the soil to Carland Cross.

This will allow us to construct a dead lane for travelling east to remove the rest of the materials.

If you have any questions or concerns, please contact:
Dave James
Community Relations Officer,Costain Ltd
Mobile: 07435 926357
Email: david.james1@costain.com
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AD008336-7366-4B5C-8923-783A98DCD95A.jpeg
RichardEvans67
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

by Sam S » Sun May 15, 2022 12:20

From a local community group:

Some residents have received notice of major earth moving during a week of nights commencing the 16 May 2022 and possibly the weekend during the day as well at the end of that week.
Thanks for sharing that.

Looks like this is the start of constructing the new local route in this area. From a plan I downloaded, this section of new local route needs to be constructed 1st. So that they can then start building the new D2 alongside it, and work on the Two Barrows underbridge.

When they actually start widening the cutting, I would think there will be quite a bit of earth to move, and looks like they will be using the A30 to move it. I hope they have considered how to fit that around the holiday traffic.
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kevinse16
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Re: A30 Carland Cross Chiverton Cross

Post by kevinse16 »

I’m down in Cornwall on a business trip in a couple of weeks and is it wrong of me to be excited to see any changes to the road layout in the A30
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Re: A30 Carland Cross Chiverton Cross

Post by RichardEvans67 »

by kevinse16 » Sun May 15, 2022 15:05

I’m down in Cornwall on a business trip in a couple of weeks and is it wrong of me to be excited to see any changes to the road layout in the A30
Not at all. When there have been schemes near enough to me in the past, I would drive through them every now and then, for no other purpose than to satisfy my curiosity. The last one was the A21 Tonbridge to Pembury. I would go and have a drive about once a month, (choosing a time when the traffic was quiet). Cornwall is much too far from me to do that. So I have to look for stuff online.
roadphotos
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Re: A30 Carland Cross Chiverton Cross

Post by roadphotos »

The A30 is going to be closed all weekend (from May 20th to the 23rd) to allow the switch over at the Chybucca Junction. This will divert A30 traffic onto a new section of road to so that the existing A30 can be removed and construction can continue on the junction. Traffic will be diverted via the A3075 and B3285.
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