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Newbridge Junction

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Newbridge Junction
Location Map ( geo)
Newbridge Roundabout from the South - Geograph - 458575.jpg
Newbridge Junction from the South
Cameraicon.png View gallery (5)
Newbridge, West Lothian
Highway Authority
Transport Scotland
Junction Type
Roundabout Interchange
Roads Joined
M9, (M8), A8, A89, B7030
This article is about Newbridge, junction 1 on the M9, near Edinburgh.
For other Newbridges or New Bridges, see Newbridge
For for the original junction 1 of the M9, see Kirkliston Interchange.

The newly opened roundabout on the 1971 OS One Inch map, with the gaps for the future extensions of both M8 and M9 visible

Newbridge Roundabout might appear to the casual eye to be an unremarkable grade-separated roundabout interchange on the M9, but for 25 years it was a flat roundabout that marked the starting point of both the motorways that radiate from Edinburgh. Approaching from the city along the A8, one could turn left onto the M8 towards Glasgow, or right onto the M9 towards Stirling.

It is numbered as junction 1 on the M9.


The roundabout was built in 1970. According to official notices in the Edinburgh Gazette, the adjacent sections of the two motorways opened within a few days of each other.

On 25 November, a 2-mile section of the M9 opened, from Newbridge to a temporary tie-in with the then A9 (now B9080) at Muriehall, near Winchburgh, together with the short spur from what is now Junction 1A to Humbie Roundabout on the route to the Forth Road Bridge. (At that time a 5-mile section of the M9 existed further north; the two sections were connected in 1972, and the M9 was completed in 1980.)

The Newbridge to Dechmont section of the M8 opened five days later, on 30 November 1970, creating a 23-mile motorway from Newbridge to Newhouse Junction near Glasgow.

According to the plans of that time, Newbridge Roundabout was expected to remain a flat roundabout, as it did not lie on the eventual intended mainline of either motorway.

Going south from Newbridge along the M8, one passed under the railway and curved west, coming to a section of separated carriageways at Claylands intended for a future fork junction. This would allow the M8 mainline to be extended eastwards towards Edinburgh, as has since happened, with the route to/from Newbridge becoming a spur. The north-east arm of today's Claylands Interchange was probably not envisaged at that time.

Going north from Newbridge along the M9, one came immediately to a section of separated carriageways, again intended for a future fork junction. In this case, the Newbridge-bound carriageway already included a bridge under which the future M9 mainline was planned to pass. The planned M9 extension would have headed roughly south-east and would perhaps have crossed over or under the A8 to meet the future M8 somewhere to the east.

In the event, proposals for the M9 extension were dropped, and those for the M8 extension went ahead with the fork at Claylands expanded into a triangular interchange. The extension opened in 1995.

Traffic conditions at Newbridge were by now intolerable and the roundabout was grade separated in 1997. The original roundabout was not big enough to accommodate a motorway underneath and had to be enlarged. The bridge in what was now the southbound off-slip was demolished, but the slip road remained on its original alignment.

Logically one might expect that Claylands Interchange would now be regarded as the start point of the M9 and that Newbridge would be regarded as a junction entirely on the M9, but there is evidence that the authorities still regard Newbridge as the meeting point of the two motorways. Marker posts on the M9 are still numbered from Newbridge.


Route To Notes


Forth Road Bridge (A90), Stirling, Linlithgow


Glasgow, Edinburgh, Livingston, Bathgate


Airport, Ingliston, Royal Highland Centre


Broxburn, Uphall


Newbridge Ind. Estates, Ratho, Wilkieston


Glasgow, Livingston, Bathgate


Newbridge Junction
Related Pictures
View gallery (5)
A8 from Holytown to Broxburn - section 6 - Coppermine - 16891.JPGNewbridge Roundabout from the South - Geograph - 458575.jpgAnd the M9. - Coppermine - 15154.JPGNewbridge roundabout - Geograph - 3364831.jpg- Coppermine - 15157.JPG
Other nearby junctions
Airport Junction • Baberton Junction • Bankhead Roundabout • Barnton Junction • Blackhall Junction • Calder Junction • Claylands Interchange • Crewe Toll • Dreghorn Junction • Drumbrae Junction • Drumbrae Roundabout • East End Junction • Gillespie Crossroads • Gilmerton Crossroads • Gilmerton Junction (Edinburgh) • Gogar Roundabout • Gowkley Moss Roundabout • Granton Square • Haymarket • Hermiston Gait • Humbie Roundabout • Jocks Lodge • Kaimes Junction • Kirkliston Interchange • Lasswade Junction • Leadburn • Lothianburn Junction • Maybury Junction • Millerhill Junction • Milton Link Junction • New Burnshot Junction • Newcraighall Junction • Old Craighall Junction • Quality St. Junction • Scotstoun Junction • Seafield Junction • Sheriffhall Roundabout • Sighthill Roundabout • Straiton Junction • Tollcross (Edinburgh) • West End Junction • Winchburgh Junction
Junctions on the M9
M8 (2) Claylands • 1 Newbridge • 1A KirklistonHumbie RdbtScotstoun • 1B Winchburgh • 2 Philpstoun • 3 Burghmuir  • 4 Lathallan • 5 Cadgers Brae • 6 Earls Gate • 7 Kinnaird House  • 8 (Hill of) Kinnaird • 9 Bannockburn • 10 Craigforth • 11 Keir
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
Junctions on the A89
Glasgow Cross • Parkhead • Shettleston Crossroads • Barrachnie Cross • Swinton Roundabout • Baillieston Interchange • Drumpellier Roundabout • Coatbridge Roundabout • Centenary Park Fork • Terminus Roundabout • Heatherfield Roundabout • Guildiehaugh Roundabout • Boghall Roundabout • Dechmont Roundabout • Kilpunt Roundabout • Newbridge Roundabout

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