Network Rail is set to carry out track work on Kew Railway Bridge over the River Thames between Kew Gardens and Gunnersbury stations from September to October.

The train company say its engineers will be replacing more than 570 wheel timbers, which are used to hold the rails in place across the whole length of the structure on both lines.

Existing wheel timbers on the bridge are over 25-years-old and are in "poor condition", which means they are more likely to cause track faults which lead to delays for passengers.

Kew Railway Bridge carries both London Overground's Richmond – Stratford line and the District line.

The grade II listed bridge is located on an intensively used stretch of the railway that has seen an increase in disruption in recent weeks, with Network Rail and Transport for London working together to drive down delays.

Network Rail say the new wheel timbers will be made from a material that's more durable, needs less maintenance and lasts longer than conventional wheel timbers.

As part of the job, engineers will be installing brand new rails near the bridge, replacing some sections which are worn out.

Elsewhere along this stretch of line, teams will be taking the chance to deliver additional targeted maintenance at the same time as the bridge works, including:

• Improving train detection systems
• Replacing points (which allow trains to change tracks) at Gunnersbury and Richmond
• Upgrading signals at Richmond
• Cutting back vegetation to improve signal sighting for train drivers, reduce the likelihood of flooding at Gunnersbury and lower the risk of obstructions on the line

The train network explains that the works will improve reliability and performance for passengers going through Kew Railway Bridge .

Simon Milburn, Network Rail Anglia infrastructure director, said: "We need to replace the deteriorating wheel timbers on Kew Railway Bridge so that we can continue to run trains over the River Thames safely and reliably in future.

"This is a vital job that will help to keep this wonderful heritage structure operating as a key part of these busy railway lines. We will also use this closure to carry out other maintenance work to help deliver a reliable service for our customers."

London Overground and District line services from Richmond Station will be affected during four weekends between September and October due to works (credit: Cesar Medina).

Rail replacement buses will operate while the works are taking place. Passengers are advised to check before they travel at tfl.gov.uk on the following dates.

Saturday 7 and Sunday 8 September

No London Overground service between Richmond / Shepherd's Bush and Gospel Oak.

A special train service operates between Willesden Junction (Low Level) and Stratford via Kensal Green, Queen's Park, Kilburn High Road, South Hampstead, Camden Road and all stations.

No District line service between Richmond and Turnham Green.

Saturday 14 and Sunday 15 September

Until 1pm on Saturday, no London Overground service between Richmond and South Acton.

After 1pm and all day Sunday, no London Overground service between Richmond and Willesden Junction.

Throughout the weekend, no District line service between Earl's Court and Richmond / Ealing Broadway.

Saturday 28 and Sunday 29 September

No London Overground service between Richmond and South Acton.

No District line service between Richmond and Turnham Green.

Saturday 5 and Sunday 6 October

No London Overground service between Richmond and South Acton.

No District line service between Richmond and Turnham Green.