Assessment of the structural adequacy of the Ionia Odos Highway pavement (Ch. 5+000 – 200+000) by applying non-destructive methods, core sampling, laboratory tests and assessment of the bearing capacity of the individual road surfaces using back calculation software. Elaboration of a study for the assessment of the required maintenance/reinforcement of the road surface by applying an analytical calculation method and formulating a work program and budget for alternatives solutions for a design life of 20 years.