The A1 has now re-opened following the demolition of Fort Bridge.
The road was closed between Leeming and Barton for 34 hours to allow the demolition to take place.
It is part of major work to upgrade the dual carriageway to a three-lane motorway between Leeming and Barton.
A new bridge will be rebuilt at a later date.
Photos have also been released showing the demolition in progress over the weekend.
North Yorkshire Police are appealing for witnesses following a collision on the A1 northbound carriageway this morning, which left three people in hospital.
The 21 year-old male driver, and 20-year-old female passenger were driven to Leeds General Infirmary. A second passenger, a 24 year-old man, was airlifted to James Cook Hospital in Middlesbrough.
At around 7:10am, a dark green Mini Cooper left the A1 between Boroughbridge and Dishforth, and came to rest on its side.
The northbound carriageway was closed by the police to allow emergency services attend to casualties, and for collision investigators to examine the scene.
Both lanes were closed briefly to allow collision investigator allow the air ambulance to land.
North Yorkshire Police are asking for anyone who saw a dark green Mini Cooper travelling north on the A1 before the collision to contact them on 101.
Officers are thanking members of the public who stopped at the scene to assist.
32 concrete beams will be lifted into place as part of a new structure on the A1 between Leeming and Baton.
The bridge beam lift starts today (Wednesday, 3rd December) and aims to be completed by Friday, weather permitting. The lifting operation will be visible from the A1 at Catterick but should not cause any disruption to traffic using the A1.
A carriageway closure previously scheduled for the night of 29th November and postponed as a result of an unforeseen police led incident around Marne Barracks will now take place overnight on Sunday, 7th December, between 8pm and 6am.
In case of further complications, a contingency date has also been scheduled overnight on Wednesday, 17th December, between 8pm and 6am, to ensure that surfacing works are completed ahead of the Christmas holidays.
The southbound carriageway on the A1 between Barton junction and Scotch Corner junction will be closed so that urgent repair works to the surface of the southbound A1 carriageway can be carried out. Traffic will be diverted via the A68 (West Auckland), A688 (Staindrop and Stainton Grove), A67 (Barnard Castle), Newgate/Westwick Road, and the A66.
Plans for roadworks on the A1 in Gateshead are going on show.
The new layout includes an extra lane near Lobley Hill to ease congestion.
Plans can be seen at Dunston Activity Centre and Lobley Hill Primary.
Work is due to begin later this year.
There have been delays and slow traffic this morning, causing huge tailbacks, as major roadworks get underway on the A1 Western Bypass.
The roadworks are mostly affecting the Southbound carriageway - which is down to one lane.
The Northbound carriageway has also reduced down to two lanes.
The roadworks will be in place for the next four weeks.
There has been huge disappointment, after hopes were dashed that the A1 in Northumberland would finally be upgraded.
The Chief Secretary to the Treasury, Danny Alexander, announced details of road and rail improvements but there was no mention of dualling the A1 between Morpeth and Berwick.
Gregg Easteal has taken a journey along the section of the route, meeting people whose lives are affected by the Government's decision:
The Berwick MP Sir Alan Beith has given a cautious welcome to the statement by Danny Alexander, despite the bitter disappointment for campaigners who had hoped for the dualling of the A1 in Northumberland.
The Chief Secretary to the Treasury gave details of government spending on road and rail projects, but has ordered only a feasibility study for the A1 north of Newcastle.
The Government's failure to commit to dualling the A1 between Morpeth and Berwick has been greeted with disappointment by motorists and businesses in the region.
Speaking in the Commons today, June 27, the Chief Secretary to the Treasury, Danny Alexander, announced details of road and rail improvements totalling £28 million.
Campaigners had hoped for an upgrade to the A1 in Northumberland, but it remains under review.
Chief Secretary to the Treasury, Danny Alexander, has outlined plans for a £100bn investment aimed at kick-starting economic growth.
There has been disappointment in the region after a proposal to dual the A1 was not included in investment plans.
It was hoped that long-delayed plans to dual the A1 road through Northumberland would finally be given the green light. It follows decades of campaigning for full dualling of the route between Newcastle and the Scottish Border.
There are plans to improve the A19 between Newcastle and South Shields.