A9 Dualling Perth to Inverness

One of the UK's biggest programmes of road spending - not just now but for many years - the Scottish Government's commitment to upgrade the A9 to a fast dual carriageway between Perth and Inverness will see £3bn spent over a ten year period.

Eleven individual dualling schemes are in the programme, all due to be completed in or before 2025, and together they will create an 80 mile expressway north from Perth. South of that point, the A9 is already a dual carriageway down to the M9 at Stirling, and the M90 provides a direct route to Edinburgh and the Forth crossings, so the cumulative effect will be to connect Inverness and the Highlands to Scotland's central belt and the wider UK by continuous dual carriageway.

The existing A9 is mostly single carriageway, with occasional short dual carriageway sections to allow overtaking, and was mostly built as a new or realigned road in the 1970s. For the most part it has a very fast alignment but has a poor safety record, likely a result of it being both very fast and having few easy overtaking opportunities. The whole route is now subject to average speed cameras, which have served to limit the top speed of traffic. The speed cameras are not expected to remain when the route is completed.

Programme timescales

The following estimated timescales give an idea of the overall phasing of the programme, based on Transport Scotland's expectations for design and development work in 2014, but are subject to change.

Section Length Start of work Open to traffic
Luncarty to Pass of Birnam 9.5 km (5.9 miles) 2017 Due 2019
Birnam to Tay Crossing 8.3 km (5.15 miles) 2018 Due 2020
Tay Crossing to Ballinluig 7.7 km (4.8 miles) 2019+  
Pitlochry to Killiecrankie 6.4 km (4 miles) 2019+  
Killiecrankie to Glen Garry 21.6 km (13.4 miles) 2019+  
Glen Garry to Dalwhinnie 9.5 km (5.9 miles) 2019+  
Dalwhinnie to Crubenmore 11 km (6.8 miles) 2018 Due 2020
Crubenmore to Kincraig 16.5 km (10.2 miles) 2019+  
Kincraig to Dalraddy 7.5 km (4.6 miles) 2015 September 2017
Dalraddy to Slochd 25 km (15.5 miles) 2019+  
Tomatin to Moy 9.3 km (5.7 miles) 2018 Due 2020

More information

Transport Scotland maintain a website for the programme of works with regular updates and photographs: A9 Dualling Perth to Inverness.

Individual schemes

A9 Tomatin to Moy 15 August 2017

Upgrade of the existing single carriageway A9 to provide a dual two-lane road between the northern end of the existing dual carriageway at Tomatin and the point it resumes west of Moy. This is the northernmost component of the wider A9 dualling programme and connects the existing dual carriageway at Slochd to the existing section leading north to Inverness itself.

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A9 Dalraddy to Slochd 15 August 2017

Upgrade of the existing single carriageway A9 to provide a dual two-lane road from Dalraddy, close to Loch Alvie, past Aviemore to the southern end of the existing dual carriageway at Slochd. This scheme is the largest single section in the A9 dualling programme, providing 25 km (15.5 miles) of new dual carriageway in one go.

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A9 Crubenmore to Kincraig 15 August 2017

Upgrade of the existing single carriageway A9 to provide a dual two-lane road between the northern end of the existing short dual carriageway at Crubenmore and a point just west of Kincraig, a distance of 16 km (10 miles).

This is one of the more complex parts of the wider strategy to provide continuous dual carriageway from Perth to Inverness, requiring several new grade separated junctions to serve settlements along its route, and duplication of the seven-span bridge across the River Spey.

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A9 Dalwhinnie to Crubenmore 15 August 2017

Upgrade of the existing single carriageway A9 to dual two-lane road from the junction with the A889 at Dalwhinnie to the southern end of the existing dual carriageway at Crubenmore. This 11 km (6.8 mile) section forms part of a wider programme to upgrade the A9 to dual carriageway between Perth and Inverness.

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A9 Glen Garry to Dalwhinnie 15 August 2017

Upgrade of the existing single carriageway A9 to provide a dual two-lane road between the north end of the existing dual carriageway at Glen Garry and the A889 at Dalwhinnie. The work will form part of a wider programme that aims to dual the A9 all the way from Perth to Inverness.

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A9 Killiecrankie to Glen Garry 15 August 2017

Upgrade of the existing single carriageway A9 to dual two-lane road between the end of the existing short dual carriageway south of Killiecrankie and the start of the next dual carriageway section at Glen Garry. This scheme will provide 22km (15 miles) of upgraded road, over which distance there are relatively few access points. The difficulty of this scheme will be the exposed and remote nature of the works, and the rocky terrain through which the road passes.

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A9 Pitlochry to Killiecrankie 15 August 2017

Upgrade of the existing single carriageway A9 to a dual two-lane road between the end of the existing dual carriageway south of Pitlochry and the start of the next significant dual carriageway section south of Killiecrankie. The scheme will form part of a wider programme of works to dual the A9 all the way from Perth to Inverness.

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A9 Tay Crossing to Ballinluig 15 August 2017

Upgrade of the existing single carriageway A9 to a dual two-lane road between the Tay Crossing near Dunkeld and the existing dual carriageway at Ballinluig. The scheme is part of a wider programme of works to upgrade the whole A9 to dual carriageway between Perth and Inverness.

This section runs along the east bank of the river Tay and the design accommodates for the fact that the road runs in part on flood plain. Measures are also being taken to alleviate the risk of landslides on the southern part of the scheme, where this has been a problem in the past.

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A9 Birnam to Tay Crossing 14 August 2017

Upgrade of the existing single-carriageway A9 between the end of the dual carriageway at Pass of Birnam and the bridge across the Tay near Dunkeld. The upgrade will provide dual two-lane carriageways as part of the wider programme of works to dual the whole A9 between Perth and Inverness.

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A9 Luncarty to Pass of Birnam 14 August 2017

Upgrade of the existing A9 single carriageway between Luncarty and Pass of Birnam to provide dual two-lane carriageways. At present this 9.5 km (5.9 mile) section of the A9 lies between two existing sections of dual two-lane road, at the south end running from Luncarty to Perth and at the north end a short overtaking section through Pass of Birnam. When the scheme is finished the dual carriageway will be continuous from Perth to Birnam.

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A9 Kincraig to Dalraddy 14 August 2017

Upgrade of the existing single carriageway A9 between the Highland Wildlife Park and a point close to Loch Alvie to provide dual two-lane carriageways, as part of the wider programme of works to upgrade the A9 between Perth and Inverness.

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