The line was initially operated by the
Ambergate, Nottingham, Boston and Eastern Junction Railway from 15 July 1850, taken over by the
GNR in 1852. At Bottesford, the line was crossed by a north-south
LNWR line from
Melton Mowbray to
Newark-on-Trent (this northern section was owned by GNR). A western spur of this railway (through
Barnstone) joined at
Saxondale junction. Services were disrupted in July 2012 when an embankment collapsed near
Allington. The line also closed for some six weeks in the summer of 2013, as part of a large-scale improvement to Nottinghamshire's rail network.
Skegness councillors were critical of the decision to close the line during the height of the tourist season, but
Network Rail, the rail infrastructure company, stated that the summer was the quietest time on the line.
Cotgrave Colliery branch The branch to
Cotgrave Colliery left the Grantham line at the east end of the viaduct over the
River Trent and headed south for about . It was built in 1960. The major engineering work was the long, high, concrete viaduct, formed of 37 spans of about each, where the branch left the main line. Most of the line was on a bank about high, formed of about of fill from a
borrow pit alongside the main road. Most of the line was on a 1 in 392 gradient, with at 1 in 199. The colliery closed in 1993 and the track was lifted in 2012. ==Services==