A9 road (Scotland)

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A9 road shield

A9 road
A9 road map.png
Route information
Part of Tabliczka E15.svg E15
Length: 269 mi (433 km)
Major junctions
South end: Polmont
  [ M 9  ] M9 motorway
[ M 876  ] M876 motorway
A91 A91 road
A84 A84 road
[ M 90  ] M90 motorway
A93 A93 road
A85 A85 road
A86 A86 road
A95 A95 road
A96 A96 road
A82 A82 road
A99 A99 road
North end: Scrabster
Stirling, Perth, Inverness, Thurso
Road network

The A9 is a major road running from the Falkirk council area in central Scotland to Scrabster Harbour, Thurso in the far north, via Stirling, Bridge of Allan, Perth and Inverness. At 273 miles (439 km), it is the longest road in Scotland and the fifth-longest A-road in the United Kingdom. Historically it was the main road between Edinburgh and John o' Groats, and has been called the spine of Scotland.[1]

The road's origins lie in the military roads building programme of the 18th century, further supplemented by the building of several bridges in later years. The A9 route was formally designated in 1923, and originally ran from Edinburgh to Inverness. The route was soon extended north from Inverness up to John O'Groats. By the 1970s the route was hampered by severe traffic congestion, and an extensive upgrading programme was undertaken on the 138 mile section between Bridge of Allan and Inverness. This involved the bypassing of numerous towns and villages on the route, and the building of several new bridges, notably the Kessock Bridge which shortened the route north out of Inverness by 14 miles.

In the south the road's importance has been eclipsed by (1) the A90 across the Forth Road Bridge and the M90 motorway, which now link Edinburgh more directly with Perth, bypassing Stirling and Bridge of Allan as formerly important bridge points, and (2) the M9, which is now the main road between Edinburgh and Bridge of Allan. Between Edinburgh and Falkirk the old A9 route has been reclassified into the A803 and the B9080 amongst others; part of the route between Kirkliston and Maybury no longer exists as the area is now part of Edinburgh Airport. Between Falkirk and Bridge of Allan, the A9 survives as a more or less parallel road to the M9.

The link between the M9 and the A9, by Bridge of Allan, is the Keir Roundabout.


A section of one of General Wade's old military roads, south of Inverness.
The old A9 (now B8079) as it crosses the Allt Girnaig river at Killiecrankie.

The A9's origins lie in the military roads building programme carried out by General Wade in the 18th century to allow deployment of forces in key locations within the Highlands. At this time there was already an existing road between Perth and Dunkeld, and between 1727 and 1730 a roadway was constructed between Dunkeld in Perthshire and Inverness.[2] However, Wade had still to bridge the River Tay at Aberfeldy. Construction began in 1733 to a design by William Adam. The bridge was completed within the year, but Wade wrote "The Bridge of Tay... was a work of great difficulty and also much more expensive than was calculated." At a cost of over £4000, the bridge became the most expensive item on Wade's road building programme.[3] For most of it's length between Perth and Inverness, the route was identical to the A9 prior to the commencement of the major upgrading works in the 1970s.[2]

Thomas Telford's bridge crossing the River Tay at Dunkeld.

In 1802, Thomas Telford was requested by the Lords of the Treasury to carry out a survey of the interior of the Scottish Highlands. In his report, he highlighted the inadequacy of the old military roads to meet the requirements of the general population. In particular, he noted the difficulties caused by the absence of bridges over some of the principal rivers.[4] As part of the improvements to the road system that were carried out in the following years, a bridge was built at Dunkeld, designed by Telford. The original cost estimate was £15,000 with costs to be split between the Government and the landowner, the 4th Duke of Atholl. However, costs spiralled up to around £40,000. The Government refused to increase their financial contribution, so the Duke of Atholl had to finance the extra cost. As a result, tolls were placed on the completed bridge to recoup costs. The realigned road north out of Dunkeld would evolve eventually into the A9, and the bridge carried the bulk of the traffic into the Highlands until the new A9 by-pass was opened in 1977.[5]

The formal scheme of classification of roads in Great Britain (England, Scotland, and Wales) was first published on 1 April 1923. The original route of the designated A9 began in Edinburgh at the Corstorphine junction in the west of the city, branching north off the A8. The route went through Kirkliston and onwards to Polmont and Falkirk. The road then followed the now familiar route to Stirling and then up to Perth and onwards to Inverness, going through numerous villages en-route.[6][7] The original A9 terminated at Inverness, but in the years that followed it was extended all the way up to John O'Groats. By the 1970s, the A9 went north-west out of Inverness in what had originally been classified as the A88,[8][9] following the Beauly Firth coast westwards through Kirkhill, Beauly and Muir of Ord. Continuing north through Dingwall, the road then began to follow the Cromarty Firth coast, where it followed largely the modern alignment, going through Alness and Tain (both now bypassed). The A9 from here followed west along the south side of the Dornoch Firth coast before reaching Bonar Bridge where the road turned sharply eastwards on the north side of the Dornoch Firth. On reaching the village of Dornoch, the A9 headed north along the coast, going through several villages before reaching the town of Wick. The final stretch continued north along the coast before it finally reached John O'Groats.[7]


The Kessock Bridge, completed in 1982, which crosses the Moray Firth and shortened the route north out of Inverness by 14 miles

The 138 mile (222 km) section between Bridge of Allan and Inverness, via Perth, was substantially rebuilt during the 1970s, '80s, and early '90s, but it follows essentially the same route except where it bypasses towns and villages instead of running through their centres. Between Perth and Inverness, the road has been dubbed Killer A9,[10] because of accidents and fatalities where dual-carriageway sections merge into single-carriageway - the principal cause being motorists driving at excessive speeds to overtake lines of slower-moving vehicles before the dual carriageway ends. Dangerous overtaking manoeuvres on the long single-carriageway stretches of the road are also common causes of accidents, as are the non-grade separated junctions along the northern sections, where drivers make a right turn across the opposing traffic flow.[11]

One of the sections of dual carriageway built in the late 1970s/ early 1980s; this is the section in the north of Perthshire between Dalnacardoch and Dalnaspidal

The most significant alteration of the A9 route was the realignment of the route north from Inverness, crossing the Moray Firth via the Kessock Bridge, cutting through the Black Isle and back across the Cromarty Firth. This shortened the route by 14 miles, bypassing Beauly, Muir of Ord and Dingwall. Construction of the Kessock Bridge began in 1976 and it was completed in 1982.[12]

The controversial average speed cameras which became operational on the A9 in late 2014

Since 2007, the Scottish Government has given serious consideration to converting the entire Perth-Inverness section to dual carriageway with more grade separated junctions, with the initial estimated cost at £600 million.[citation needed] In late 2008 the Scottish Government's transport plan for the next 20 years was announced. It brought forward planned improvements to the A9 in an attempt to stimulate the economy and protect jobs.[citation needed] Work costing a total of £8.5 million was undertaken at Moy, Carrbridge and Bankfoot. Northbound overtaking lanes were created and the carriageway was reconstructed at both Moy and Carrbridge. Junction improvements were also made at Moy.[citation needed]

In November 2011 the Scottish Government announced that it would upgrade the entire road from Perth to Inverness to dual carriageway.[13] The contract for the first section of the £3 billion project was awarded in June 2015, and work began on the five mile section between Kincraig and Dalraddy (just south of Aviemore) in September 2015. The full scheme is scheduled to be completed in 2025.[14][15][16]

In July 2013, the Scottish Government announced a plan to install average speed cameras on the A9 between Perth and Inverness. This has been undertaken with an aim to reduce accidents and fatalities on the road, and will be the second permanent average speed camera scheme in Scotland.[17] The A9 ASCS proposal has met with opposition, with a Facebook campaign opposed to the introduction of average speed cameras attracting close to 10,000 supporters.[18] Despite objections, the cameras became operational in October 2014. The A9 Safety Group claim that the cameras have had a "positive influence" on road users, although there has been a slight increase in journey times.[19]


Highland Main Line and A9 highway next to each other in Perthshire, September 2000

The original starting section of the A9 between Edinburgh and Polmont no longer exists as such, having been reclassified over the years in a variety of ways; indeed part of the original route between Kirkliston and Maybury no longer exists at all as the area is now part of Edinburgh Airport.[7] The modern A9 begins at the M9 junction 5 (Cadgers Brae) on the outskirts of Polmont, just east of Falkirk, and continues through Falkirk itself and on though Larbert, Stirling and Bridge of Allan. It then becomes a primary route dual carriageway at the Keir Roundabout, just south of Dunblane, and continues north as a dual carriageway to Perth bypassing Dunblane, Blackford and Auchterarder.

At Broxden Junction on the outskirts of Perth, the A9 meets the M90 Motorway which carries traffic from Fife and the Forth Road Bridge. Broxden Junction is one of the busiest and most important road junctions in Scotland, with links to all seven Scottish cities.[20]

The section between Perth and Inverness is often cited as being the most dangerous section of the road, and regularly appears in lists of Scotland's most dangerous roads.[11] This portion of the road is mostly single-carriageway, however there are intermittent short sections of dual carriageway from Perth to Luncarty, Bankfoot to Birnam, Pitlochry to Killiecrankie, south of Drumochter Summit, Slochd Summit to Tomatin and south of Inverness as well as shorter three lane overtaking sections to reduce frustration and accidents. All the towns on this section of the route have now been bypassed.

The section from Keir Roundabout to Inverness had average speed cameras installed in 2014 and at the same time the single carriageway speed limit for HGVs was increased from 40 mph to 50 mph.[19][21]

In the north, beyond Inverness, the A9 designation has been transferred in response to construction of new bridges across the Moray Firth (the Kessock Bridge), the Cromarty Firth and the Dornoch Firth; and so that the A9 leads not to John o' Groats but to Scrabster Harbour, Thurso, where a government-supported ferry service takes traffic to and from Stromness in Orkney. Therefore various towns and villages which were on the A9 are now seriously distanced from this trunk road.[22]

Between Perth and Inverness, the A9 forms part of Euroroute E15. Inverness is the northern terminus of this route.[23]

Falkirk to Bridge of Allan[edit]

From Falkirk to Bridge of Allan the A9 runs through or near Bannockburn, Plean, Torwood, Larbert and Stirling.

Bridge of Allan to Inverness[edit]

From Bridge of Allan to Inverness the A9 runs through or near Lecropt, Dunblane, Blackford, Auchterarder, Gleneagles, Broxden Junction, Perth, Birnam, Dunkeld, Pitlochry, Blair Atholl, the Grampian Mountains, Dalwhinnie, Newtonmore, Kingussie, Aviemore, Carrbridge, Tomatin and Moy.

Inverness to Thurso[edit]


From Inverness the A9 runs across, through or near the Moray Firth, the Black Isle, Tore, Muir of Ord, Conon Bridge, the Cromarty Firth, Easter Ross, Dingwall, Evanton, Alness, Invergordon, Nigg Bay, Fearn, Tain, the Dornoch Firth, Sutherland, Dornoch, The Mound, Golspie, Dunrobin Castle, Brora, Helmsdale, Caithness, Berriedale (and the Berriedale Braes), Badbea, Dunbeath, Latheron, Mybster, Georgemas and Thurso. The road ends at Scrabster Harbour, Thurso.


From the A96 in the Raigmore area of Inverness the A9 has junctions with other classified roads as follows:

The A9 as it head north towards the Cromarty Firth causeway, near Dingwall

* On the Black Isle:

The A9 north of Brora

* In Sutherland:

Arctic lorries negotiating the hairpin bends at Berriedale
Scrabster harbour, where the A9 now terminates in the north.

* In Caithness:

The A9 ends in Thurso, at Scrabster Harbour (ND101704).


The A9 is mentioned in the James Bond film Skyfall


  1. ^ Dr. James Fenton. "Woodlands and Wildness". Scottish Wild Land Group. Wild Land News no 63, Spring 2005. Archived from the original on 15 December 2005. Retrieved 1 July 2008. 
  2. ^ a b "The Military Roads of Scotland". Old Roads of Scotland. Retrieved 12 August 2015. 
  3. ^ "History - General Wade's Roads". Scottish Towns. Archived from the original on 31 January 2000. 
  4. ^ "Thomas Telford and Dunkeld Bridge". Visit Dunkeld. Retrieved 12 August 2015. 
  5. ^ "Thomas Telford's Bridge". Dunkeld and Birnam. Retrieved 12 August 2015. 
  6. ^ "List Of Class I and Class II Roads and Numbers (transcription)". HMSO and National Archives files MT39/241 and MT39/246. 
  7. ^ a b c "A9/history". SABRE. Retrieved 14 August 2015. 
  8. ^ "Sheet 20 - Central Ross Publication date: 1934". NLS. Retrieved 20 August 2015. 
  9. ^ "A88 (Inverness - Scrabster)". SABRE. Retrieved 20 August 2015. 
  10. ^ "Killer A9 even more dangerous after road safety revamp, insist motorists". The Scotsman. Retrieved 1 June 2014. 
  11. ^ a b Duffy, Judith (25 March 2012). "Scotland's most dangerous roads". Herald Scotland. Retrieved 11 August 2015. 
  12. ^ Brocklehurst, Steven (6 March 2014). "Life and death on the A9". BBC News (Scotland - Highlands & Islands). Retrieved 13 August 2015. 
  13. ^ "Dualling of Perth to Inverness A9 to finish by 2025". BBC News (Scotland - Highlands & Islands). 29 November 2011. Retrieved 11 August 2015. 
  14. ^ Candlish, June (16 June 2015). "First contract awarded to start dualling of the A9". The Press & Journal. Retrieved 11 August 2015. 
  15. ^ "A9 dualling Perth to Inverness". Transport Scotland. Retrieved 11 August 2015. 
  16. ^ "Work begins on dualling A9 from Inverness to Perth". BBC News. 10 September 2015. Retrieved 10 September 2015. 
  17. ^ "Average speed cameras for A9 from Dunblane to Inverness". BBC News (Scotland - Highlands & Islands). 26 July 2013. Retrieved 11 August 2015. 
  18. ^ http://www.facebook.com/thereala9problem
  19. ^ a b "A9 average speed cameras 'have reduced speeding'". BBC News. 26 January 2015. Retrieved 10 September 2015. 
  20. ^ "Bad junctions - A9 - M90 - A93". www.cbrd.co.uk. Retrieved 11 August 2015. 
  21. ^ "Safety Cameras". A9 Road Info. Retrieved 11 August 2015. 
  22. ^ Towns and villages which were on the A9 but now quite remote from it:
  23. ^ "Road Traffic Infrastructure - European agreement on main international traffic arteries (AGR)" (PDF). http://www.unece.org/. United Nations Economic & Social Council. Retrieved 11 August 2015. 

External links[edit]

Coordinates: 57°17′31″N 3°52′48″W / 57.29206°N 3.87987°W / 57.29206; -3.87987