Specialist firm, Armac Group, used a fleet of excavators fitted with hydraulic breakers and other attachments to break up the Chalton-Sundon bridge B579 over the M1 motorway between Junction 11 and 12 on the night of 10th-11th September 2016.
The bridge demolition was the first of two being carried out as part of the works for a new link road connecting the M1 and A5 routes. The schemes total cost is put at £162.1 million.
The second bridge came down on the weekend 24th-25th September, with closure of the M1 motorway between 8pm on the 24th. The M1 reopened around 12 midday on the 25th. Traffic was signed to exit at junction 9 and follow the signed diversion to re-join the M1 at junction 14. One lane was open at junction 9 enabling traffic for Luton Airport and Junction 11 to head to their destinations. Significant delays were anticipated from 7pm onwards on Saturday.
Northbound M1 traffic was diverted to exit at junction 9 and then diverted north on the A5 to Milton Keynes, rejoining at junction14.
Southbound M1 traffic was diverted to exit at junction 12, through Toddington, Houghton Regis, Poynters Road, rejoining the M1 at junction 11 of the M1.
The full scheme is scheduled for completion in June 2017.
Further information at http://www.highways.gov.uk/roads/road-projects/a5-m1-link-dunstable-northern-bypass/