The objective of the MYRRHA project is to couple a sub-critical reactor with a 600 MeV, 4 mA proton LINAC, as a very first prototype of Accelerator Driven System (ADS). In this configuration, the neutron population is sustained by the LINAC, which accelerates and focuses a proton beam to a spallation target inside the reactor. The construction road map is divided into three phases. In the first phase, MINERVA, a research facility that will also function as the first section of the LINAC (up to 100 MeV), will be designed and constructed. In the second phase, the accelerator construction will be completed (600 MeV).