Whilst some maintenance work was being undertaken in the area of Trajan's Column, the Soprintendenza Archeologica di Roma, and specifically the architect Giangiacomo Martines, asked the authors to undertake new drawings and analysis of the excavations done by Giacomo Boni in 1906 along the northwestern side of the base of the column. The aim of this was to document the situation almost 100 years after the excavation had been carried out. This new work has allowed the identification of the possible construction sequence of the column, which right from the start seems to have been an integral part of the courtyard of the libraries, thus dismissing the hypothesis that the concrete foundations of the courtyard of the libraries were cut for the insertion of the foundations of the column. In addition, it is possible to reconstruct the way in which the travertine blocks of the solea were moved and installed, through an analysis of the holes of various types present in the travertine blocks, which to date have not been studied, even given the clear absence of holes intended for the insertion of the olivella.