Corridonia junction with the S.S.77 road

Modernization of the Corridonia junction (MC) with SS77 Val di Chienti road.

The works included the adjustment of the existing Corridonia junction, located at the crossroads with the Strada Statale No. 77 “della Val di Chienti” road. This junction, though effective for normal traffic conditions, was critical, with long traffic jams forming at the exit to Corridonia, in summer and at rush hours on the provincial road, requiring to design a new road configuration.

The proposed and then implemented solution was the construction of a one-way, two-lane roundabout junction, connected with the two lanes (access and exit) of the S.S. 77 road in both directions, and with the S.P. 34 road northward heading to Macerata and southward heading to Corridonia.

In the same branch, the municipal road called Via del Commercio was also linked, connecting the adjacent small-factories area to the main passing-through way.

The planned works also included:

• Consolidation of the abutment of the existing overpass over the S.S.77 road, in order to use it for a new acceleration lane towards Tolentino;

• A drainage network and an initial-rain water processing system connected with the works north of the S.S.77 road, protecting the wells-field area of the municipal waterworks of Corridonia;

• Construction of a public lighting system in the new roundabout junction;

• Acoustic and pollution impact-mitigation works protecting the residential area south of the S.S.77 road, which was developed close to the existing junction.

Services provided: Preliminary, final and executive design.

Client: ANAS – road network department of Marche.

Site: Corridonia (MC).

Years: Preliminary Planning 2004, Final Planning 2006, Executive Planning 2009.

Cost of works: 1.741 million Euros