In the locality of Crocetta di S. Agata Bolognese two trenches were excavated following the construction of the “Crocetta viaduct”, part of the work to double the Bologna-Verona railway line. In the first trench, at a depth of circa 3 m, a layer came to light containing the remains of a Bronze Age settlement. This comprised several post-holes, almost certainly belonging to a dwelling, and a large ditch which delimited the settlement on its south side. The post-holes, with a diameter of circa 25-30 cm and circa 80-100 cm deep, belonged to at least two dwellings one of which was 7 m wide with a rectangular plan. The short sides were on a N-S alignment, the long sides running E-W. In the second trench the ditch forming the settlement boundary was present. Various finds were recovered from the base deposits of the ditch, which was circa 9 m wide and almost 2 m deep. These included a number of handles with raised vertical cylindrical and horn shaped decorative elements, which date the settlement to the late Bronze Age (end of the 14th-beginning of the 12th century B.C.) Following the abandonment of the settlement, the ditch filled with clay sediments. Above the palaeo-ground level of the terramare settlement was a floor level which produced numerous early medieval finds: soap stone and coarse kitchen ware pottery. Starting from this occupation level three channels were documented. They followed the natural slope of the terrain and probably relate to medieval agricultural activity linked to the nearby early medieval castrum identified during work for the construction of a rubbish dump (NuovaGeovis). These channels were also filled by clayey sediments, which attests an episode of environmental instability during the medieval period caused by a nearby water course, probably the Panaro. Several alluvial deposits, an alternation of layers of clay and sand which have completely covered the archaeological area were probably the result of this phenomenon.