The capital investment programme will be spent in this financial year.
Mr Jones said ministers were working on a Welsh Infrastructure Investment Plan to identify priorities in Wales.
The First Minister will also convene a meeting of the Welsh Government’s Council for Economic Renewal on Wednesday to coordinate effort to “use all the levers at our disposal to support the recovery and growth of the Welsh economy”.
Over the next few weeks, a series of announcements would aim to support the Welsh economy, he said.
Environment minister John Griffiths is expected to spearhead a review of the planning process to seek to cut the red tape facing investors.
Major infrastructure projects underpinned the Welsh Government’s commitment to boost growth in the economy, necessary to allow the private sector to create jobs, Mr Jones said.
Some £780m of the projects were announced in March, including £144m in education, £259m in health, £95m in business, enterprise, technology and science, £234m in transport, and £46m in local government.
Another £100m was announced to support central departmental priorities.
Mr Jones is expected to unveil more measures this week to help individuals and businesses cope with the economic downturn and global financial crisis.
“We are committed to invest over £780m in new schools, new hospitals and other major infrastructure across the country this financial year, which is now being translated into visible construction work on sites across Wales.
“Nearly £700m of capital investment is planned in health over the next three years.”
Health minister Lesley Griffiths announced £77m for the redevelopment of Ysbyty Glan Clwyd in March.
Education minister Leighton Andrews will launch a new programme of investment in 21st century schools in December.
“Our commitment to the construction sector is clear,” Mr Jones said.