The upgrades have strengthened the long-term resilience and reliability of the line with engineers working tirelessly across two weekends.

Across the eight‑day programme, engineering teams carried out essential repairs and renewals at multiple locations which included:

• Fixing and replacing parts of the walls that support the railway in Greenock, including new concrete sections.
• Replacing the main deck of the River Gryffe Bridge, repairing the steel to strengthen it.
• Repairing the steel that supports the railway on Houston Road, Georgetown.
• Fixing the steel under the bridge and replacing part of the platform with modern, durable materials at Station Road in Langbank.

Ross Moran, route director at Network Rail, said: “Our engineers have delivered vital upgrades that will keep the Inverclyde line reliable for years to come.

“Strengthening key structures is essential to maintaining a safe and resilient railway, and we’re grateful to customers for their patience while we carried out this important work.”

Mark Ilderton, ScotRail service delivery director, said: “We’d like to thank our customers for their patience and understanding while the essential improvements on the Inverclyde line were carried out.

“The upgrades will deliver long‑term benefits for customers, improving the reliability and resilience of services on the route for years to come.

“We recognise that engineering works can cause inconvenience, and we’re grateful for the support our customers have shown throughout the project. We look forward to welcoming everyone back on board.”