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Southbar Interchange

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Southbar Interchange
Location Map ( geo)
Approaching the A8 Greenock Road overbridge - Geograph - 2416426.jpg
The former interchange in 2011
Cameraicon.png View gallery (13)
Location
Southbar
County
Renfrewshire
Highway Authority
Transport Scotland
Junction Type
modified fork
Roads Joined
M8, A8

The Southbar Interchange was, for a time between 1968 and 1970, a terminus of the M8 Renfrew Bypass section. It has then had a junction built, been closed and then re-built again.

History

The junction layout on the 1974 OS One Inch map
The first junction layout as the western terminus of the M8 in 1968
And from 1965, just before the motorway arrived

The first junction on the site was an at grade junction where the mainline flowed from the M8 into the westbound A8, with the city bound A8 giving way, presumably at traffic signals.

The M8 extension was then started, and completed in two sections, the first in December 1970 just as far as the M898 at Craigton Interchange. Therefore, in order to maintain the traffic flow from the motorway onto the A8 they needed to maintain a junction at this point. This took the form of a simple slip from the westbound M8 onto the A8, but for eastbound traffic they needed to build a loop which started under the new overbridge, and curved through the field to the north east of the junction to meet the M8 before the bridge started. These two sliproads also allowed traffic flows to be maintained during the construction process.

With the completion of the motorway through to West Ferry Interchange in November 1975, the junction at Southbar was no longer really needed. It is still shown in use on the 1976 OS Landranger map, but not given a number whilst the motorway is complete through to West Ferry. By the 1980s the junction is marked as closed, and it was later removed, the land being returned to nature on the south side, whilst the site of the loop has been returned to the farmer.

The Junction Returns

In 2016, plans were made for a new junction at the site, with legal orders being published in August 2016.

The rebuilt junction, partially using the original offslip but otherwise a new design, opened in late 2019.

The two dumbbell roundabouts themselves are named, as the Commonside Roundabout and Craigmuir Roundabout.

Routes

Route To Notes

M8

Erskine Bridge (M898), Erskine

M8

Glasgow, Airport, Paisley

A8

Greenock, Bishopstone

A8

Renfrew

A8(M)

Glasgow, Airport, Paisley

Strip Maps


Links




Southbar Interchange
Related Pictures
View gallery (13)
M8 south bar original layout.jpgSouthbar Interchange 1976.pngCommonside Roundabout(1).JPGCommonside Roundabout(3).JPGCraigmuir Roundabout(2).JPG
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Junctions on the M8
Hermiston Gait • Newbridge • 2 Claylands • 3 Detchmont • 3A Starlaw • 4 Whitburn  • 4A Heartlands • 5 Shotts • 6 Newhouse • 6A Chapelhall • 7 Eurocentral • 7A Shawhead • 8 Baillieston • 9 Easterhouse Rd • 10 Westerhouse Rd • 11 Stepps Rd • 12 Cumbernauld Rd • 13 Provan • 14 Blochairn • 15 Townhead • 16 Dobbies Loan • Port Dundas • 17 & 18 Charing Cross • 18 & 19 Anderston • 20 West Street • 21 Seaward St • 22 Plantation Rd • 23 Dumbreck Rd • 24 Helen St • 25 Cardonald • 25A Braehead • 26 Hillington • 27 Arkleston • 28 Glasgow Airport • 28A & 29 St James' • 29A Southbar • 30 Craigton • 31 West Ferry
Junctions on the A8
West End • Drumbrae Junction • Maybury Junction • Gogar Roundabout • Airport Junction • Newbridge Roundabout • Newhouse Junction • Chapelhall Junction • Eurocentral Junction • Shawhead Junction • Bargeddie Junction • Baillieston Interchange • Swinton Roundabout • Glasgow Cross • Gorbals Crossroads • Seaward Street Interchange • Shieldhall Roundabout • Red Smiddy Roundabout • Barrangary Roundabout • Chestnut Roundabout • West Ferry Interchange • Langbank Roundabout • Woodhall Roundabout • Newark Roundabout • Comet Roundabout • Kingston Roundabout • Glen Roundabout • Cartsdyke Roundabout • Bullring Roundabout

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