Trains between Lincoln and Spalding will be cancelled between April 4 and 14 due to work on the Great Northern Great Eastern (GNGE) line.
The works to modernise the line between Peterborough and Doncaster via Lincoln will be carried out as part of a phase bringing four improved crossings and 19 miles of new signalling.
The new signalling system will replace 1930s mechanical technology with modern electronic systems which will be controlled from Network Rail’s Lincoln Signalling Control Centre.
Once the current phase of work is completed on April 14 trains will bypass Sleaford, reducing traffic and delays to level crossing users in the town centre.
Phil Verster, Route Managing Director for Network Rail, said: “The GNGE line is an important route for both freight and passenger trains. Demand for rail services continues to grow and the upgrade of this line is an important project to help meet that demand
“During just ten days our engineers will install modern signals which will help to allow for future increases in services as well as improving reliability.
“At the same time the level crossings at Scopwick, Rowston, Blankney and Sleaford North will be upgraded with the latest technology,” he added.