From : 19th November 2018

To : 4th February 2019

Posted : 5th November 2018

Major £690K improvement project announced for two bridges on A9 near Dunblane, Auchinlay Rail Bridge and Allan Water Bridge

Project to take seven weeks to complete, with work split into two phases 

First phase to begin mid-November

Second phase to begin in January after festive period


A major road maintenance project for two bridges on the A9 near Dunblane has been announced which will see over £690,000 in improvements carried out.

The project will involve essential maintenance on two bridges which carry the A9 over the Stirling to Perth rail line and Allan Water River near Dunblane.   The expansion joints on the bridges are the original joints since construction in 1990.  Since construction they have deteriorated and are now in need of replacement to ensure the bridges continue to operate safely.   

The project to replace the joints is complex with large machinery required to help remove the old bridge joints across both carriageways.  The new joints will then be set in place using concrete to repair the bridge deck, with both bridges then waterproofed and resurfaced.  

The A9 will remain open throughout the project, however to keep roadworkers as well as motorists safe during the upgrades and complete the work in the shortest possible timescale, a contraflow system will be in operation during the bridge repairs. This traffic management will be in place full time for three and a half weeks of work on each carriageway.  

Phase One will begin on the northbound carriageway with single lane traffic in each direction travelling on the southbound carriageway. 

Phase Two will repeat the process, with works on the southbound carriageway and traffic being switched to the northbound carriageway.

The first phase of the project is expected to begin on Monday 19 November and traffic management will remain in place until Wednesday 12 December when it will be removed ensuring there are no restrictions to road users during the Christmas and New Year break. The second phase of the project is expected to begin on Monday 14 January and traffic management will remain in place until Monday 4 February.

Commenting on the works, Andy Thompson, BEAR Scotland’s North East Representative said “This £690,000 project of road improvements will allow our teams to carry out the replacement of the expansion joints on the A9 Auchinlay Rail and Allan Water Bridges.

“The bridge expansion joints are the original joints since the bridges’ construction in 1990. Over the years the joints have deteriorated and no longer function properly, and this project will allow us to replace the joints which will ensure the bridge continues to operate safely for years to come”.

 “The project has been split into two phases to reduce the overall impact of the work on road users, with teams removing all traffic management from mid-December until after the festive period to keep disruption to road users at a minimum.

“We’ve planned these works to be carried out under a contraflow system to keep everyone safe during the project, and although some minor delays are anticipated our teams will do all they can to carry out the work as quickly and safely as possible.  We advise road users to abide by all traffic or speed restrictions put in place during the work for their safety, and to use both lanes when queuing to help reduce any congestion.

“We thank road users for their patience during these essential works and encourage them to plan their journeys in advance by checking the Traffic Scotland website before they travel and allowing some extra time to reach their destination.”

Real time traffic information is available from Traffic Scotland on, on twitter @trafficscotland or on the new mobile website  

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