Grade seperated junctions for farms or similar

[jabbaboy]

Was just reading the thread before about houses being on the carriageway and someone mentioning that it's rare for a private resident to have a split in the carriageway to serve their house and it just reminded me of these (https://www.google.com/maps/@54.984045, ... ?entry=ttu) two completely grade seperated junctions on the A69 with slip roads etc, including it's own private bus stop for one of them which only serve 1 farm each and absolutely nothing else.

Rather ironic that the newer part around 500m West has an at grade junction.

Is there many more examples around, as I'm really struggling to think of any others or are they quite common in other parts of the country?

[SouthWest Philip]

There's a similar GSJ serving a few farm accesses and nothing else on the A30 on between Launceston and Bodmin. This in spite of the fact that at grade crossings were provided contemporaneously for much busier junctions with the A395 and B3257. The A395 junction at Kennards House was replaced with a GSJ after just a few years due to it's appalling accident record.

[jervi]

A264 is (Horsham Road) between Crawley & Horsham is entirely at-grade, for junctions, accesses & PRoWs, however there is this one singular grade separated junction for this farm. It is very low-spec though as being a single lane and the accesses to/from both carriageways are sketch.
https://www.google.com/maps/@51.0962937 ... ?entry=ttu

The A23 London Road north of Pyecombe has a "works only" junction, which is very over-spec with a diamond layout, which is uncommon for this purpose.
https://www.google.com/maps/@50.9065075 ... ?entry=ttu

The A24 Worthing Road, which only has a few grade-separated parts has a junction thing here to serve a large farmyard & school.
https://www.google.com/maps/@50.8855013 ... ?entry=ttu

[Truvelo]

There's one on the A13 here which I've used a few times to turn round
https://www.google.co.uk/maps/@51.53049 ... ?entry=ttu

[wrinkly]

From the early 1970s until the upgrade to M6 in 2008, the A74 Cumberland Gap had six* quite minor LILO GSJs, none of them connecting with A or B roads.

(* reduced to five when the southernmost one was closed in the 1990s)

The three most minor were the most northerly ones, which were with roads shown in white rather than yellow on the Landranger map. They didn't have their own dedicated over- or underbridges, but had link roads going under the south end of the bridge over the River Esk (often flooded I think), and under both ends of Mossband Viaduct over the railway; see the 1971 1" map on SABRE maps.

The most minor of all was the one at the north end of the railway viaduct and seems to have just served Mossband Hall, which is probably a farm.

[Mapper89062]

https://www.google.co.uk/maps/@52.23616 ... ?entry=ttu was the one I mentioned on the other thread. It can hypothetically be used to get from the minor road from the SE onto the eastbound A14 but is not signed as such and the bridge access is I believe marked as private.

https://www.google.co.uk/maps/@52.00621 ... ?entry=ttu This one opened with the A505 Baldock bypass and is just for two farms and the BioGen plant. I'm surprised they didn't just make it a LILO and use the money to GSJ one of the busier junctions to the east instead, particularly given agricultural vehicles will struggle to get under the bridge: https://www.google.co.uk/maps/@52.00661 ... ?entry=ttu

[SteveA30]

These 2 are easy to miss on the A303 east of the A34 junction.

junctionhttps://www.google.com/maps/place/Rex+Paterson+ ... &entry=ttu

[Rob590]

Was just reading the thread before about houses being on the carriageway and someone mentioning that it's rare for a private resident to have a split in the carriageway to serve their house and it just reminded me of these (https://www.google.com/maps/@54.984045, ... ?entry=ttu) two completely grade seperated junctions on the A69 with slip roads etc, including it's own private bus stop for one of them which only serve 1 farm each and absolutely nothing else.

Rather ironic that the newer part around 500m West has an at grade junction.

Is there many more examples around, as I'm really struggling to think of any others or are they quite common in other parts of the country?

The farm with the bus stop is actually owned by Newcastle University and is used in education for its agricultural programmes, which is probably why it gets a bus stop.

[Fluid Dynamics]

A264 is (Horsham Road) between Crawley & Horsham is entirely at-grade, for junctions, accesses & PRoWs, however there is this one singular grade separated junction for this farm. It is very low-spec though as being a single lane and the accesses to/from both carriageways are sketch.
https://www.google.com/maps/@51.0962937 ... ?entry=ttu

The A23 London Road north of Pyecombe has a "works only" junction, which is very over-spec with a diamond layout, which is uncommon for this purpose.
https://www.google.com/maps/@50.9065075 ... ?entry=ttu

The A24 Worthing Road, which only has a few grade-separated parts has a junction thing here to serve a large farmyard & school.
https://www.google.com/maps/@50.8855013 ... ?entry=ttu

The A24 GSJ south of Washington also allow traffic accessing Worthing Crematorium to u-turn

[jackal]

See these two GSJs on the recently widened A4440 south of Worcester. The eastern one isn't, I think, even for a farm proper, but for fields. Also of note is that they're both limited access (west-facing slips only). The route is not otherwise grade separated.

https://www.google.co.uk/maps/@52.16106 ... a=!3m1!1e3

[KeithW]

https://www.google.co.uk/maps/@52.23616 ... ?entry=ttu was the one I mentioned on the other thread. It can hypothetically be used to get from the minor road from the SE onto the eastbound A14 but is not signed as such and the bridge access is I believe marked as private.

https://www.google.co.uk/maps/@52.00621 ... ?entry=ttu This one opened with the A505 Baldock bypass and is just for two farms and the BioGen plant. I'm surprised they didn't just make it a LILO and use the money to GSJ one of the busier junctions to the east instead, particularly given agricultural vehicles will struggle to get under the bridge: https://www.google.co.uk/maps/@52.00661 ... ?entry=ttu

Well the A14 has been receiving upgrades for many years around there as traffic grows. I used to attend the annual airshow there but the airfield has been closed for several years and as I recall it was only last year when it was finally closed for public access and the site is now the Rougham Industrial estate. I believe the old control tower is still accessible.

Here are some photos of the 2006 event.
https://forums.airshows.co.uk/viewtopic.php?t=81796
The map showing where it was is here
https://www.google.com/maps/place/52%C2 ... &entry=ttu

As for the A505 access it was upgraded when the Baldock Bypass was built, the old flat junctions that still exist are horribly dangerous and have has several serious accidents as traffic levels have grown. When I was living in Edgware and working in Cambridge this junction was nasty especially at night.
https://www.google.com/maps/@52.0165947 ... &entry=ttu

https://www.cambridge-news.co.uk/news/l ... d-17085047
viewtopic.php?t=40730

[wallmeerkat]

Not a farm but the RBS HQ GSJ on the A8 always interested me, or the barriered off GSJ for Celtic Manor

https://www.google.com/maps/@51.6235544 ... ?entry=ttu

[rhyds]

Not a farm but the RBS HQ GSJ on the A8 always interested me, or the barriered off GSJ for Celtic Manor

https://www.google.com/maps/@51.6235544 ... ?entry=ttu

IIRC the Celtic Manor one was only ever used for the Ryder cup and has since been totally idle!

[rhyds]

Having had a chance to look at some of the Google Maps links I'm going to hazard a guess that these junctions were designed as GSJs so that the farms could easily move heavy equipment such as Combines around their fields without having to cross at-grade, with the sliproads being an effective bonus to the bridge/tunnel

[swissferry]

Not a farm but the RBS HQ GSJ on the A8 always interested me, or the barriered off GSJ for Celtic Manor

https://www.google.com/maps/@51.6235544 ... ?entry=ttu

Reminds me of the only two GSJs on the A78 outwith Irvine / Troon:

• The IBM one has been abandoned along with the rail station after the factory closed
• The Inverkip one now seems rather overspec'd now the power station has been demolished

[Truvelo]

The Inverkip one now seems rather overspec'd now the power station has been demolished[/list]

The bridge is designed to allow for dualling which will almost certainly not happen now.

[Chris5156]

Having had a chance to look at some of the Google Maps links I'm going to hazard a guess that these junctions were designed as GSJs so that the farms could easily move heavy equipment such as Combines around their fields without having to cross at-grade, with the sliproads being an effective bonus to the bridge/tunnel

I think that's right - most of the examples in this thread are "accommodation bridges", meaning a single track bridge that "accommodates" the needs of landowners or farmers whose plot has been divided by the road and who will need to get from one side to the other. If you're building the bridge anyway it's a minor thing to add an access point on either side.

[Summers-lad]

Not a farm but the RBS HQ GSJ on the A8 always interested me, or the barriered off GSJ for Celtic Manor

https://www.google.com/maps/@51.6235544 ... ?entry=ttu

IIRC the Celtic Manor one was only ever used for the Ryder cup and has since been totally idle!

Auto Shenanigans did a feature on it. https://www.youtube.com/watch?v=JJKJC61JiQk

[jackal]

Having had a chance to look at some of the Google Maps links I'm going to hazard a guess that these junctions were designed as GSJs so that the farms could easily move heavy equipment such as Combines around their fields without having to cross at-grade, with the sliproads being an effective bonus to the bridge/tunnel

I think that's right - most of the examples in this thread are "accommodation bridges", meaning a single track bridge that "accommodates" the needs of landowners or farmers whose plot has been divided by the road and who will need to get from one side to the other. If you're building the bridge anyway it's a minor thing to add an access point on either side.

It's easily a couple of million to add the slips, or much more in bigger examples like the A13. So it still needs to be explained why they're provided in these cases but not in the many more cases where there is an accommodation bridge with no slips.

I suspect the main explanation is to maintain access to the road network. It's only where the farm's road access is otherwise severed that the slips are added.

This has implications for where you'll find farm GSJs. A typical new build might sever access between fields, requiring an accom bridge, but doesn't sever road access, as it's in addition to existing roads - hence farm GSJs aren't needed there. But online upgrades are more prone to severing road access, with existing access points closed - hence that's where you'll find most farm GSJs.

This seems to fit with the cases given above, which tend to be online upgrades (e.g., A69, A303, A4440, and even, surprisingly, the A13, which replaced the existing road).

[Bryn666]

A strange example because it got demolished and later replaced is the farm bridge to the west of the new A582/A583 junction. Presumably when the Ashton Bypass fork was built it was deemed insane to have a farm crossing right next to it - after it was demolished because the farm disappeared it came back mainly as a means to access the Guild Wheel cycle route.

A similar accomodation bridge was next to M6 J31 on the A59 but demolished in the early 2000s.