The Spanish Government is planning to tender transportation projects worth €17bn ($22.7bn) over the 2010-2011 period.
The plan is expected to invest 70%, €11.9bn ($15.9bn), of the fund in railroad works, especially in the high-speed sector.
Around 65%, €7.7bn ($10.3bn), of this amount is expected to be invested in new works and 35%, €4.2bn ($5.6bn), in maintenance.
Prime Minister Jose Luis Rodriguez Zapatero said the rail and road projects will be on public-private partnerships under the new special infrastructure plan.
The companies gaining a concession will need to pay for at least 20% of the initial investment themselves.
The new infrastructure projects are slated to be operational from 2014 onwards.