Rail users on the Norwich to London line, which passes through Diss, are set for a boost with the replacement of an old railway bridge.
The works are set to take place during the August Bank Holiday weekend.
Network Rail say that following the demolition and replacement of the bridge in Norwich, which carries the main line over Long John Hill, reliability will be increased and there will be fewer delays.
The work will take place from Saturday until the early hours of Tuesday, August 30, and the railway will be closed during this time. Passengers travelling between Norwich and London Liverpool Street will be affected by the closure and a rail replacement bus service will be operating between Norwich and Ipswich. Tickets will also be valid via Cambridge.
Jamie Burles, managing director, Abellio Greater Anglia, said: “We are grateful to customers for their patience and understanding while these important works are carried out.
“The improvements will help to deliver a better and more reliable service for passengers on the Great Eastern Main Line. We are committed to working with Network Rail to improve punctuality and performance across our network.”