Officina Colla can be easily reached from Tortona toolgate (A7 Milano-Genova e A21 Torino-Piacenza-Brescia) following the road signs towards the city centre, until the roundabout after Scrivia river bridge, then turn left and immediately turn right on the descending avenue entering in viale Mariano Dellepiane. Go over the railway rails of a FS contracting company, running along the boundary wall of old Villa Dellepiane, then turn left taking a private street – street number 10 – where lots of company have their offices. Officina Colla is at the end of the street, on the right side, recognizable by a tower, once used as a water-supply.