The project interested about 9.5 km of major road (10.5 m width), from the current primary route S.S.128 with a roundabout built South of the town of Senorbì, up to the link on the current S.S. 128, via roundabout, South of the intersection with Gesico Provincial Road. In addition to the two roundabout intervention on the beginning and on the end of the intervention, there are three other roundabout intersections.
Along the roadway the major structures consist of two bridges: a 175 m long bridge from the progressive 4+753.82 to 4+927.42; and the other bridge with a development of 105 m from the progressive 7+792.42 to 7+896.02; the minor structures are: 13 concrete culverts, 2 road underpasses and 12 concrete tubular for water drainage from road platform. The project entails also about 6.9 km of secondary roads, (4 m width), to ensure the inter-estate traffic
