4,750-Ton Bridge Slid Over M6 Highway in Birmingham, Report Says
On October 27, 2026, engineering teams slid a massive 4,750-ton railway bridge into its final position over the busy M6 motorway near Birmingham, allowing vehicle traffic to continue flowing underneath during the final nine-hour operation, forschung-und-wissen.de reported.
Hydraulic Push Over the M6
The final installation phase moved the western structure 76 meters across concrete pillars. Instead of utilizing a massive crane, the construction consortium Balfour Beatty VINCI deployed hydraulic pulling devices known as strand jacks. These devices incrementally pulled the heavy steel superstructure forward. Crew members added supplementary steel components to the rear of the build as the span advanced.
The heavy framework moved at an average speed of twelve meters per hour. The operation required millimeter-level precision from the engineering crews overseeing the movement. While the main span traversed the motorway, authorities temporarily closed the adjacent connector road linking the M42 and the M6 to establish a secure safety zone. Project leaders noted that managing the dense traffic load through this transport corridor necessitated the careful, non-stop engineering method.
Parallel Viaducts at Chelmsley Wood
The newly positioned western span joins an identical eastern structure that was put into place during earlier construction phases. Both viaducts stretch 320 meters in length and run parallel to one another. A gap of exactly 100 millimeters—equivalent to ten centimeters—separates the two weather-resistant steel superstructures.
The eastern viaduct will eventually carry southbound trains toward London. Meanwhile, the newly finished western bridge will guide high-speed rail services heading north toward Birmingham and beyond. The eastern installation required three separate pushing stages, while the western span required four distinct phases to complete its journey across the motorway.
Next Construction Phases Near Coleshill
With both major viaduct superstructures now resting on their concrete piers above the M6, workers must construct elevated railway embankments at either end of the bridges to integrate them into the wider rail network. High Winds previously forced project managers to postpone separate work on a viaduct located near Water Orton, though the M6 push proceeded as scheduled.
Attention now shifts to upcoming infrastructure milestones for the high-speed rail initiative. Project planners have scheduled a large railway bridge to be installed over the M42 near Coleshill. That future structure will eventually carry four tracks across the motorway, continuing the expansion of the route north of Birmingham.