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Third M25 junction 28 beam lift completed

A crane lifting concrete beams to construct a road bridge
An Liebherr LTM1450 lifts the last beams into place on the £750 million M25 junction 28 upgrade.

Graham, working on behalf of National Highways, has completed the third and final beam lift on the £750 million M25 junction 28 upgrade.

The installation saw 16 pre-cast beams, weighing 35 tonnes and 23.5m-long, lifted into position for the construction of the new Alderwood bridge, located beside the M25, Essex.

The beams were installed onto newly constructed abutments using a 500-tonne capacity Liebherr LTM1450. When completed, the bridge will carry the new A12 loop road between the M25 and A12 over the M25 entry slip.

The M25 junction 28 connects the A12 and the M25, and provides access to Brentwood via the A1023, with up to 7,500 vehicles passing through the junction roundabout at peak times.

Improvements include building a new two-lane loop road for traffic traveling from the M25 anti-clockwise onto the A12 eastbound, including the construction of new bridges, changing the position of A12 eastbound exit slip road and M25 anti-clockwise entry slip road to allow for the new loop road, and widening the M25 anti-clockwise carriageway to provide more space for traffic leaving for the A12 eastbound.