Amey has secured a £400m contract from Transport Scotland to maintain and improve the motorways, trunk roads and highways across the south-west.

The contract will commence from August this year and run for a minimum of eight years.

Under the network management contract (NMC), an optional extension of up to four years is included amounting to a total value of £690m.

The contract includes delivery of engineering design and operational delivery services for a road stretch of 600km.

Amey will also be responsible for providing vital services on key routes such as the A75, A76 and A77 from Greenock to Dumfries, and out to Stranraer.

Additionally, the services will be provided on parts of the M8 and M74 around Glasgow.

Amey’s contract will also cover cyclical maintenance, motorway lighting and traffic signals, barrier repairs and winter maintenance.

Furthermore, Trunk Road Incident Support Service (TRISS) will be provided to keep these major routes safe and well-maintained.

A dedicated team of bridge engineers will monitor and maintain the 1,600 structures in south-west Scotland such as the Erskine and Kingston bridges.

Amey chief executive Amanda Fisher said: “Amey is extremely proud of its record of delivery in Scotland, and our dedicated engineers and suppliers welcome this opportunity to continue working with Transport Scotland to support local growth, economic development and a more sustainable service across the south-west region.”

Working with Transport Scotland since 2001, Amey is supervising the south-east and south-west network of roads and highways.

A separate highway contract has been signed between the two, to provide maintenance services for the upgraded sections of the M8, M73 and M74.