Deflection measurements on asphalt roads with the Traffic-Speed-Deflectometer (TSD) allow a network-wide assessment of individual layers and their interaction in the structure as well as the identification of superficially non-visible damages and weak points in the pavement. As part of two funding projects, several state roads in Brandenburg were measured over a period of three years. Between the measurements, constructional maintenance measures were carried out on several road sections. The maintenance measures varied in terms of the layers involved and ranged from replacing the asphalt surface course to renewing the asphalt base course. Selected maintenance measures were analyzed and evaluated on the basis of the bearing capacity values determined. The different maintenance measures carried out between the measurements can be precisely identified by the bearing capacity measurements and evaluated for their effect on the structural condition. As expected, the maintenance measures of the asphalt surface course had no significant effect on the improvement of the structural condition of the bound superstructure. On the other hand, the maintenance measures that went beyond the surface course resulted in an improvement in the bearing capacity, which was reflected in a positive change in the relevant parameters. Based on the bearing capacity characteristics, different degrees of the considered maintenance measures (e.g. different reinforcement thicknesses or an increase in the gradient) could be determined. The data obtained is important for research into the development of new assessment methods for bearing capacity measurements. The results of the analyses and evaluations will be used to develop a guideline for determining the required reinforcement thicknesses from the results of the bearing capacity measurements.