Grade-separation of remaining at-grade junctions on the 74 mile section between the A1(M) at Peterborough and Blyth, closing central reservation gaps and finally removing the remaining six roundabouts which are increasingly unsafe due to traffic levels and speeds. The work breaks down to six smaller schemes:
- Blyth (A614): overbridge, possibly with continuous hard shoulders to connect the Doncaster and Blyth Bypasses. Work scheduled Sept 2006 to Feb 2008, costing Ãƒï¿½Ã‚Â£17.3m. - Apleyhead (A57 and A614): overbridges with A1 beneath, realigned slightly to the east. Work scheduled Sept 2006 to Feb 2008, costing Ãƒï¿½Ã‚Â£15m. - Markham Moor (A57): overbridge, making use of the earthworks provided to the south of the roundabout. Work scheduled Feb 2007 to Autumn 2008, costing Ãƒï¿½Ã‚Â£19m. - Gonerby Moor (B1174): overbridges with A1 beneath. Work scheduled Oct 2006 to Feb 2008, costing Ãƒï¿½Ã‚Â£15m. - Colsterworth (A151/B6403): overbridges with A1 beneath. Work scheduled Spring 2007 to Autumn 2008, costing Ãƒï¿½Ã‚Â£12m. - Carpenter's Lodge (B1081): overbridges with A1 beneath. Work scheduled Spring 2007 to Autumn 2008, costing Ãƒï¿½Ã‚Â£9m.
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A1/A57 Apleyhead junction is approved, with draft orders published.
Colsterworth, Gonerby Moor and Markham Moor junctions are all approved.
Public inquiry is now taking place for Colsterworth Roundabout.
Site clearance work has started at Blyth and Apleyhead roundabouts (J34 and at A57/B6420). It is not yet clear whether this is the actual start of work or simply some early clearance.
Work has now started at three sites, with a contractor's village at Gonerby Moor and substantial work at the two most northerly sites. Signs are up warning of delays until November 2007 at some sites and January 2008 at others.
Work continues, with a start of work at Markham Moor due in February.
Trees have been cleared at Markham Moor. Apparently consideration is being given to another flyover close by, at Jockey Lane near Elkesley, which would allow the removal of the 50mph limit through the village.
The Gonerby Moor overbridge is now fully built and stands in a field adjacent to the current A1. Work is now starting on the roads around the rest of the junction.
At Appleyhead, the southbound A1 is now using the new underpass. Northbound traffic remains on the old roundabout. The overbridge at Blyth is now in place and soon to be in use. Markham Moor now has a bridge in place too, and works in building it revealed the original smaller roundabout inside the existing large one.
Appleyhead junction is now almost complete apart from landscaping work and minor details on the roundabout, with A1 traffic using the underpass. Carriageway work is well underway at Blyth.
At Gonerby Moor, the northbound carriageway through the junction is complete, with A1 traffic now using it in a contraflow. At Colsterworth, the new overpass is under construction, with bridge piers completed and the pre-fabricated bridge deck lying next to the road.
Gonerby Moor and Blyth junctions are now fully open to traffic. Work has started at Carpenter's Lodge.
The overbridge at Colsterworth now has its deck in place.
Markham Moor is now well under way, with diversions in place to allow construction of the sliproads. Funding has also been announced for Elkesley to be improved with a grade-separated junction.
Traffic both ways now using the new mainline at Markham Moor; slip roads not yet fully open.
Markham Moor: the northbound slip road to the A638 is now open.
Carpenter's Lodge mainline and junction is now open to traffic, with 2 lanes each way throughout. The 50mph limit remains over Christmas, pending the remaining works. Work at Colsterworth South is now due for completion by September 2009.
Southern overbridge at Colsterworth is now in use.
At Colsterworth South work is now due to finish in August 2009.
The whole scheme has been officially opened by Transport Minister Chris Mole.