A9 Dualling: Tomatin to Moy construction

The study of British and Irish roads - their construction, numbering, history, mapping, past and future official roads proposals and general roads musings.

There is a separate forum for Street Furniture (traffic lights, street lights, road signs etc).

Registered users get access to other forums including discussions about other forms of transport, driving, fantasy roads and wishlists, and roads quizzes.

Moderator: Site Management Team

Post Reply
User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

A9 Dualling: Tomatin to Moy construction

Post by Glen » Mon Nov 15, 2021 23:19

While the main construction work for the A9 Tomatin to Moy project is in the tendering process, with the contract expected to be awarded in late 2022, Network Rail are undertaking advance work to replace a masonry bridge under the Highland Mainline at Moy. This existing road (which previously linked to the A9 prior to the WS2+1 scheme) will form the new access from the B9154 to Lynebeg and to the left-in/left-out junction on the northbound carriageway.

The new concrete bridge has been preassembled on the opposite side of the B9154, with the demolition of the existing bridge and placement of the new bridge due to take place on the weekend of the 27th of November.

Image

Image

Image

Image

Image

Image

Image

Image

User avatar
KeithW
Member
Posts: 12737
Joined: Thu Dec 04, 2014 13:25
Location: Marton-In-Cleveland North Yorks

Re: A9 Dualling: Tomatin to Moy construction

Post by KeithW » Tue Nov 16, 2021 07:56

This has already been discussed in the main A9 dualling thread here.
viewtopic.php?f=1&t=31386&start=2020#p1213896

Nice set pf pictures.

SteelCamel
Member
Posts: 235
Joined: Fri Mar 27, 2020 15:46

Re: A9 Dualling: Tomatin to Moy construction

Post by SteelCamel » Tue Nov 16, 2021 21:25

Glen wrote:
Mon Nov 15, 2021 23:19
While the main construction work for the A9 Tomatin to Moy project is in the tendering process, with the contract expected to be awarded in late 2022, Network Rail are undertaking advance work to replace a masonry bridge under the Highland Mainline at Moy. This existing road (which previously linked to the A9 prior to the WS2+1 scheme) will form the new access from the B9154 to Lynebeg and to the left-in/left-out junction on the northbound carriageway.

The new concrete bridge has been preassembled on the opposite side of the B9154, with the demolition of the existing bridge and placement of the new bridge due to take place on the weekend of the 27th of November.

How will the bridge be moved? I really can't imagine machinery that could pick up something that heavy and move it all the way to the bridge site (over rough ground, since it looks a good bit wider than the road). I'm surprised it's been assembled so far from the site - i would have thought it was easier to assemble it on the other side of the railway next to the existing bridge. Though that would mean bringing the components down from the A9 as I doubt they would fit through the arch.

User avatar
KeithW
Member
Posts: 12737
Joined: Thu Dec 04, 2014 13:25
Location: Marton-In-Cleveland North Yorks

Re: A9 Dualling: Tomatin to Moy construction

Post by KeithW » Tue Nov 16, 2021 21:47

SteelCamel wrote:
Tue Nov 16, 2021 21:25

How will the bridge be moved? I really can't imagine machinery that could pick up something that heavy and move it all the way to the bridge site (over rough ground, since it looks a good bit wider than the road). I'm surprised it's been assembled so far from the site - i would have thought it was easier to assemble it on the other side of the railway next to the existing bridge. Though that would mean bringing the components down from the A9 as I doubt they would fit through the arch.
They are closing the B9154 for several days and I recall they moved the new Bar Hill Bridge into position on the A14


User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

Re: A9 Dualling: Tomatin to Moy construction

Post by Glen » Tue Nov 16, 2021 22:18

It will be moved using self-propelled modular transporters, the verge of the road has been surfaced with sub-base to make it wide enough.
Where the bridge has been fabricated is just where there is sufficient space, there wouldn't be enough level ground between the railway and the A9.
The wing walls have been built closer so they can be positioned with a crane.

Here's some more information: http://murform.com/portfolio-item/a9-du ... inverness/

And here's a video of a similar concrete bridge being positioned with SPMTs. https://youtu.be/R4ca9xVYJqk

SteelCamel
Member
Posts: 235
Joined: Fri Mar 27, 2020 15:46

Re: A9 Dualling: Tomatin to Moy construction

Post by SteelCamel » Wed Nov 17, 2021 21:24

Not seen those before - that's a seriously impressive machine! I'd never have even considered that you could put a fully assembled bridge on wheels and move it.

User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

Re: A9 Dualling: Tomatin to Moy construction

Post by Glen » Mon Nov 29, 2021 08:34

Work on the bridge replacement on Sunday.

https://www.facebook.com/19513618438348 ... 221644374/

User avatar
Ruperts Trooper
Member
Posts: 10555
Joined: Sun Jun 17, 2012 13:43
Location: Huntingdonshire originally, but now Staffordshire

Re: A9 Dualling: Tomatin to Moy construction

Post by Ruperts Trooper » Mon Nov 29, 2021 09:29

Glen wrote:
Mon Nov 29, 2021 08:34
Work on the bridge replacement on Sunday.

https://www.facebook.com/19513618438348 ... 221644374/
Only visible to Facebook subscribers.
Lifelong motorhead
VW Touareg TDi for towing and longer journeys - Citroen C1 for shorter journeys.

User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

Re: A9 Dualling: Tomatin to Moy construction

Post by Glen » Mon Nov 29, 2021 10:41

Ruperts Trooper wrote:
Mon Nov 29, 2021 09:29
Only visible to Facebook subscribers.
If the direct link doesn't work, it will be visible on https://www.facebook.com/sabreroadsuk/
which doesn't require being logged into Facebook.

User avatar
Ruperts Trooper
Member
Posts: 10555
Joined: Sun Jun 17, 2012 13:43
Location: Huntingdonshire originally, but now Staffordshire

Re: A9 Dualling: Tomatin to Moy construction

Post by Ruperts Trooper » Mon Nov 29, 2021 11:26

Glen wrote:
Mon Nov 29, 2021 10:41
Ruperts Trooper wrote:
Mon Nov 29, 2021 09:29
Only visible to Facebook subscribers.
If the direct link doesn't work, it will be visible on https://www.facebook.com/sabreroadsuk/
which doesn't require being logged into Facebook.
Thanks for that.
Lifelong motorhead
VW Touareg TDi for towing and longer journeys - Citroen C1 for shorter journeys.

User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

Re: A9 Dualling: Tomatin to Moy construction

Post by Glen » Wed Dec 01, 2021 19:05

Video of the work over the weekend.

User avatar
KeithW
Member
Posts: 12737
Joined: Thu Dec 04, 2014 13:25
Location: Marton-In-Cleveland North Yorks

Re: A9 Dualling: Tomatin to Moy construction

Post by KeithW » Wed Dec 01, 2021 20:50

Impressive especially given the conditions.

User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

Re: A9 Dualling: Tomatin to Moy construction

Post by Glen » Fri Dec 03, 2021 19:18

Article on the bridge replacement in NCE:
https://www.newcivilengineer.com/latest ... 3-12-2021/

User avatar
Glen
Committee Member
Posts: 5290
Joined: Mon Mar 13, 2006 02:16
Location: Inbhir Pheofharain
Contact:

Re: A9 Dualling: Tomatin to Moy construction

Post by Glen » Sat Dec 25, 2021 15:16

Some photos of the bridge replacement work.

The SPMT being set up in the week ahead to the closure of the railway.
Image

Image

On the Sunday of the work, with the bridge in place and the wing walls being installed.

Image

Image

Image

The railway track being laid on the Monday

Image

Image

Following completion
Image

Image

Image

Image

The two culverts installed under the railway to the south of Moy, during the closure, either side of where the A9 crosses the line, to facilitate drainage for the road upgrade.

Image

Image

Nwallace
Member
Posts: 4097
Joined: Tue Apr 10, 2007 22:42
Location: Dundee

Re: A9 Dualling: Tomatin to Moy construction

Post by Nwallace » Mon Dec 27, 2021 18:15

That track alignment looks like it might just allow for a future double tracking too, hope that is the case otherwise a bit short sighted.

Paul7755
Member
Posts: 137
Joined: Mon Jul 11, 2016 11:59

Re: A9 Dualling: Tomatin to Moy construction

Post by Paul7755 » Mon Dec 27, 2021 20:55

Nwallace wrote:
Mon Dec 27, 2021 18:15
That track alignment looks like it might just allow for a future double tracking too, hope that is the case otherwise a bit short sighted.
I think it is definitely allowed for, it’s shown on this drawing of the bridge:
https://www.transport.gov.scot/media/42 ... gement.pdf

Post Reply