In this paper, four experimental pavements section were tested at a new full-scale accelerated loading facility in Colombia. The sections consisted of three flexible pavements with geogrid reinforcement at different depths in the structure, plus a control section. The four pavement structures were constructed using the same materials under a unique design, varying only by the arrangement of the geogrid, which was placed on the top of the subgrade, at middle of the base layer, and on a double configuration on top of the subgrade and the middle of the base. The loading equipment is known as the Fatigue Carousel, and for this test it applied a total of 100,000 repetitions over the four sections, which are arranged in a circular track. Extensive material characterization was carried out and is presented in the paper. The results indicate that the best fatigue response in a geogrid reinforced flexible pavement is obtained when the geogrid is placed on the base or on both the base and top of the subgrade. The paper includes performance evaluation in terms of deflection and surface distresses.