The National Infrastructure Plan (NIP) includes the government selling off its 40% stake in the Eurostar rail service.
In all, about £375bn of investment in energy, transport, communications, and water projects is planned.
The insurance industry, which has not traditionally been a big infrastructure investor, is also unveiling plans to invest £25bn over the next five years.
The NIP follows previous infrastructure spending programmes, which have been criticised for slow progress.
Simultaneously to the NIP announcement, the insurance industry is unveiling that it will invest £25bn in infrastructure projects.