Seven miles of traffic built up on the M6 northbound in Staffordshire yesterday morning after overnight roadworks ran late. The carriageway remained closed beyond the planned 6am reopening, with delays lasting until mid-morning.
The closure was between Junctions 11 (Shareshill) and 12 (Gailey). National Highways attributed the overrun to tarmac supply problems and a broken-down machine, which combined to delay surfacing work and prevent reopening as scheduled.
Why delays stretched beyond the closure
Motorway night works require precise timing. A closure starts when crews and plant reach the site. Surfacing occurs within a narrow window. The road must reopen before the morning peak.
The job needs several steps in sequence: laying tarmac, allowing it to cool and set, conducting safety checks, then removing equipment and closing down the site. Any hold-up in this chain holds up reopening.
At this site, tarmac delivery issues meant surfacing could not proceed as planned. A breakdown of key plant equipment further stalled work. Both factors extended the road closure past 6am.
How the closure affected traffic
Queues of around seven miles formed, stretching back to Junction 10a. Delays reached up to 60 minutes. National Highways implemented a diversion via the A460 and M6 Toll to ease traffic. However, the A460 near Junction 11 was also congested.
The AA reported average delays reaching 48 minutes during the morning peak on affected routes. The late reopening at approximately 9:30am allowed traffic to start clearing, but National Highways advised drivers to allow extra journey time while queues dissipated.
Why tarmac and plant matter so much
Tarmac for surfacing arrives according to strict timing and temperature requirements. The material needs to be laid in sequence and cooled properly before traffic resumes.
Installing freshly delivered tarmac cannot be postponed easily. Any delay risks compromising surface quality and safety.
Plant breakdowns are similarly disruptive. Surfacing operations depend on machinery that must perform within tight time limits, especially during live motorway closures with limited working space.
The wider implications
Night-time roadworks on strategic routes like the M6 are intended to minimise disruption. This approach depends on strict adherence to schedules.
The incident in Staffordshire highlights how small operational failures can escalate into significant traffic disruption. This is not a result of major incidents or policy issues but day-to-day challenges of roadworks logistics.
For contractors and authorities, it underlines the importance of reliable supply chains and plant maintenance. For drivers, it shows how quickly planned overnight closures can impact rush hour traffic when issues arise.
The closure emphasises how the end of surfacing work extends beyond laying material. Safety checks, clearing debris, removing plant and lifting closures all take time and cannot be rushed without risk.
