This signal box may have been one of the last new boxes to be built. The box replaced a GNR signal box. called Allington Junction. It does a least look like a signal box. It may also have one of the shortest lifespans, as it down to close when the new York signal centre opens. It could remain to house the control gear? The level crossing gates were removed and were replaced with lifting barriers

This new box is to the North west of Grantham on the line from Nottingham to Sleaford. Most  of the normal Nottingham to Sleaford, Boston and  Skegness passenger trains call at Grantham.They turn off at Alllington junction and head southwards to Grantham. They then reverse in the station and come back to Allington and use the new cord and head east to Sleaford

Because Barkston Junction has now been removed from the ECML. Passenger trains from Sleaford for Grantham now come under the ECML and then use the new CORD and reverse in Grantham and return to Allington junction be for heading for Nottingham

The old "Allington Junction" signal box had opened in 1875. It had a set of 4 level crossing gates over a minor road The box was closed in 2005, when this new "Allington" box took over, when the new cord was opened the old GNR box was demolished .

Allington Junction is to the north west of Grantham on the line from Nottingham to Sleaford.

Most passenger trains between Nottingham and Sleaford call at Grantham. Trains calling at Grantham from Nottingham left this line at Allington Junction. At Grantham trains reversed and then used the ECML as far as Barkston Junction were they had to cross over the up lne of the ECML to get to the Sleaford line. To keep the ECML trains on time Nottingham Sleaford trains were often held up.

After the new CORD was put this new signal box was built and called just Allington. It was build on the other side of the road from were the old GNR box was.

Barkston Junction has now been removed from the ECML and trains to Sleaford now leave Grantham to the west by the Nottingham line and use the new CORD that was put in at Arlington Junction.

Trains from Sleaford to Nottingham which call at Grantham now go under the ECML and A1 be for they turn back using the new cord at Allington Junction towards Grantham on the Nottingham line . This has helped timekeeping, as these trains do not have to wait for a path on the ECML as they now do not now use it.