Scottish finance secretary John Swinney has revealed an extra £76M funding will be given towards green transport, road building and affordable housing projects across the country.
Over the course of the financial year, the government will provide £6.2M to upgrade the A77 in the south west of the country.
It is a key link to the new Cairnryan ferry terminal.
Swinney revealed a further £5M will go towards upgrading the A9 road, and £3.8M to develop the Dundee waterfront.
Sustainable transport initiatives, including a green bus fund to encourage the construction of low emission vehicles, the development of electric vehicle infrastructure and cycling infrastructure, will be given a £10M boost.
Elsewhere building programmes on the Dundee and Forth Valley colleges will be allocated £17M, while £31M will be given to affordable housing projects across the country.
Swinney told MSPs the money came from “consequential” funding following the announcement of the Budget earlier this year.
He said: “Funding will be allocated to projects which are ready to be delivered, producing an immediate boost to demand, and to increase the government’s purpose of increasing sustainable economic growth.
“Over the coming months this new capital investment will deliver vital infrastructure projects across Scotland.”