The Government will invest more than £160 million in four major road projects across England.

The four schemes in Newcastle, Cornwall, Greater Manchester and Southampton, will generate an estimated £659.3m in economic benefits for the regions through improved investment, new housing and employment opportunities, says the Department for Transport (DfT).

Ministers say that £78.5m has been earmarked for a new 3.85-mile (6.2 km) road linking St Austell to the A30, and £35.3m has been allocated for essential maintenance to the Tyne Bridge and adjacent central motorway, including improvements to traffic management and cycle route facilities.

A further £33.6m will be spent on tackling congestion across the A34 between Greater Manchester and Stockport, and £13.4m will be used for essential maintenance to the A35 Redbridge Causeway - a vital link between New Forest, Southampton and its port.

Roads minister Baroness Vere said: “We are committed to delivering world-class infrastructure across all parts of the country which supports local economies to thrive. 

“This £160.8m investment will level up those opportunities from the North East to the South West, while giving motorists, cyclists and pedestrians the modern, safe and uncongested roads they deserve. 

“These schemes also present yet another important stepping-stone towards cutting emissions and building a clean, efficient road network that is truly accessible to all.” 

Martin McTague, national chair of the Federation of Small Businesses (FSB), added: “Investment in local infrastructure projects is vital to improving connectivity across the country, reducing congestion and upgrading the roads that small businesses use on a day-to-day basis. 

“Small firms and sole traders rely heavily on road networks to be accessible, efficient and safe. They are also looking to reduce environmental impact and improve the air quality in their local community - and so embrace green travel options when they are available.

“Our economic recovery relies on a solid transport system and this latest investment is a positive step in the right direction."