In a blizzard of figures and policy promises, officials also unveiled plans to save £15bn-a-year by improving construction productivity.

The latest pipeline contains both public and private schemes and is an update on the 2016 document which detailed £500bn of work.

Andrew Jones MP, Exchequer Secretary to the Treasury, said: “We are backing Britain with a record amount of infrastructure investment as we build an economy fit for the future.

“That’s why we’re working with the industry to skill up and scale up for the challenges ahead.

“Investing in infrastructure boosts productivity for the economy as a whole. The scale of the investment we are talking about here will deliver a step change for our country.”

The announcement added: “The government is a major player in construction and delivers many projects every year, such as transport, schools, prisons and hospitals.

“This accounts for a quarter of all construction projects, and using this purchasing power will enable ministers to drive innovation and encourage firms to invest in modern methods and technology.

“Methods such as off-site manufacturing, where projects are part-constructed before being assembled on location, can boost productivity by reducing waste by 90% and speed up delivery times by more than half (60%).

“For example, a school that typically takes a year to build could be done in just over 4 months.”

For full details of projects in the work pipeline click here

Full details of the Transforming Infrastructure Performance productivity improvement plans can be found here