logo logo
26 September 2023, 10:21

Queensferry Crossing work starts on the new diversion barriers

When the Queensferry Crossing opened in August 2017, it was claimed the bridge would not be closed by high winds as barriers had been installed to protect it from high gusts. Sadly since the opening problems have emerged, with wet snow building up and falling, in some cases breaking car windshields.

During design of the Queensferry Crossing these type of problems were understood but the decision was taken that would be managed by developing appropriate operational practice, in line with “practice at the time on similar bridges elsewhere in the world”.

After a number of different solutions being considered over the years the decison is that the bridge will have to be closed when the bridge is deemed to be unsafe to cross. Therefore the focus has been on how to monitor the bridge conditions and when its deemed unsafe how do you divert traffic quickly.

Norwegian-company, KVT, have developed and installed 2,000 sesnors which provide real-time analysis of the conditions impacting on the crossing allowing Bear Scotland to decide when to divert traffic away from the crossing.The challenge then remained that the actual process to divert traffic could take up to 6 hours resulting in the need to divert traffic to the Kincardine Bridge for any short term needs.

A better solution would be to install automated barriers so that traffic could quickly be diverted to the Forth Bridge and this work continues this week.

With foundations now in place, Transport Scotland’s operating company BEAR Scotland is installing the barriers. This requires work on the verges and central reservation of the M90 on both sides of the Queensferry Crossing, as well as resurfacing works on the hard shoulder of the slip road onto the southbound M90 at Junction 1B Ferrytoll.

All works will take place at night to minimise disruption. During the day there will be two lanes running in each direction at all times. Access for emergency vehicles will be maintained. 

Resurfacing of the Ferrytoll southbound on-slip hard shoulder took place on Monday night. Verge barrier installation will commence on Monday, October 2, for two weeks, and central reservation barrier installation on Monday, October 23, for two weeks.

To test the barriers, the M90 northbound carriageway will be closed between Scotstoun and Ferrytoll from 10pm to 5am on Tuesday, October 31, with northbound traffic diverted via the Clackmannanshire Bridge. The southbound carriageway will then be closed between Ferrytoll and Scotstoun from 10pm to 5am on Wednesday, November 1.

A trial deployment of the barriers will be carried out on Saturday, November 4, to ensure they are operating correctly. The Queensferry Crossing will be closed in both directions from 11pm until 5am with all M90 traffic diverted via the Forth Road Bridge. Road users should expect delays at the beginning and end of this period as traffic is stopped while the diversion is implemented.

Notes to the editor

For further information please contact:

Sonia Mattis or Kevin Stewart at

Keep up-to-date with on Twitter; @Carsvansbikes

or follow us on Linkedin:

About CarsVansandBikes is a digital advertising website which enables the motorist to easily find a pre-owned or new car, van or motorbike. We live the mantra As easy as CVB.

CVB does not accept advertising or sponsored listings, therefore all vehicles listed are presented without influence or bias – unlike other similar platforms. makes its money through fees paid by motor dealers advertising their vehicle stock. All advertising stock is catalogued in a fair and transparent manner.

When launched in 2021, CVB was the first automotive advertising platform with no extra charges. Connecting sellers with potential customers, provides comprehensive vehicle details rather than solely listing prices. By providing all inclusive access to information, CVB assists motorists to make better informed decisions.

Completely free of charge, private motorists pay nothing for services.

CarsVansandBikes Limited trades as