
23/06/2025
M9 J3-J4 – BRIDGE DECK REFURBISHMENT WORKS
BEAR Scotland, acting on behalf of Transport Scotland, are planning to carry out maintenance works on the bridge that carries the M9 over Bonsyde Road between M9 Junction 3 and Junction 4
The works are expected to last for three months and will require lane restrictions on the M9 between Junctions 3 and 4 as well as a series of overnight closures.
To minimise impact to the travelling public, most of the works have been programmed to take place under alternative lane closures/contraflow which will utilise the hard shoulder and will allow for two lanes to be open in each direction. However to ensure the safety of the workforce on site certain activities will have to take place under overnight road closures.
To allow the works to be carried out safely and to minimise disruption to traffic the M9 Eastbound and Westbound carriageway between J3 and J4 will be closed to the public overnight on Monday 30th June.
Below is a breakdown of the closures and the dates they will be in effect
A diversion route will be in place, detailed below.
Please also refer to the attached diversion drawing for further details.
Access for emergency vehicles will be maintained at all times.
Following the road closure a series of lane closures will be in place.
30 June – 1 July from 20:00 – 06:00
M9 Eastbound Carriageway Between J3 and J4 Eastbound Closure with signed diversions via Bo’ness between Junction 3 & 4.
Traffic will be directed to leave the M9 at Junction 5 and follow the A905 and the A904, then A993 through Bo’ness, then follow the A804, and the A903 to region the M9 at junction 3. This will add an estimated 1.5 miles and add ten minutes to journey times.
30 June – 1 July from 20:00 – 06:00
M9 Westbound Carriageway Between J3 and J4 Westbound Closure with signed diversions via Bo’ness between Junction 3 & 4.
Traffic will be directed to leave the M9 at Junction 3 and follow the A803, the A904, the A993 through Bo’ness, the A904 and the A905 to re-join the M9 westbound at Junction 5. This will add an estimated 1.5 miles and add ten minutes to journey times.
30 June- 4 September
M9 Westbound Carriageway Between J3 and J4 A series of Lane closures/contraflow between junction 3&4 using the hard shoulder to maintain 2 lanes open in each direction.
Details of further overnight closures will be announced when timings are confirmed.
Even though the diversion is a short one, they have planned these works to take place overnight to minimise disruption to traffic.