It said combined with recent work at Easter, a total of £41.1m has been invested in the North West and central region to improve passenger and freight services for the future.
It follows the complete closure of London Euston station for major track upgrades at Watford and Wembley.
Other improvements included railway drainage work in Camden to protect tracks from future flooding; demolition of an old railway viaduct in Birmingham ahead of the HS2 (SAS 13) bridge renewal; signalling upgraded in Macclesfield; bridge upgrade work in Carlisle; track foundation strengthening in Warrington and Carlisle and track replacement on the West Coast main line in Carstairs, Scotland.
The company said Network Rail teams planned as much work as possible into the recent bank holidays so the West Coast main line would be fully open for the Queen’s big celebration between June 2 and 5.
Tim Shoveller, managing director for Network Rail’s North West and Central region, said: “I’m extremely proud of the hundreds of workers and contractors who’ve pulled out all the stops over the last two bank holidays to improve the railway for the future.
“I’d like to thank passengers whose travel has been disrupted by our £41.1m upgrades over Easter and Early May.
"The great news is the West Coast main line and major routes in the Midlands and North West are now in the best possible shape for the Platinum Jubilee weekend when the whole country will join in to celebrate 70 years of our Queen on the throne.”