Northamptonshire railway bridge work to 'improve rail times'
Three Northamptonshire railway bridges are to be rebuilt to try and speed up journey times on the London to Sheffield line, Network Rail has said.
It said the work would provide extra headroom for trains to travel at high speeds, which tilt more as they pass through curved sections of track.
The work will also allow the line to be fully electrified by 2020.
The bridges at Burton Latimer, Rushton and Kettering will be closed for up to 14 weeks while the work is undertaken.
A fourth bridge close to Kettering Venture Park will also be demolished as it is no longer in use.
Justin Page, of Network Rail, said: "This work will deliver quicker journeys for the ever-growing number of passengers on the Midland Main Line, helping to bring the region's biggest economies closer together.
"Our longer-term plans to upgrade and electrify the line will transform our diesel railway into one of the most modern in Europe providing more seats, even faster journeys, and cleaner and quieter trains.
"We thank people in advance for their patience."