The Tunnel de la Croix-Rousse is a road tunnel located in the 1st and 4th arrondissements of Lyon, opened to traffic on 19 April 1952.It follows the line of the Route Nationale 6 and thus links the platforms Rhône rivers to the Saône's ones. It crosses the hill of la Croix-Rousse. The roadway is composed of 2 x 2 routes with no real separation of roadways until the construction of a central wall in 1999. Its use is only for vehicles whose whole weight don't exceed 3,5 tonnes. The tunnel length is 1,782 meters.
The speed is limited to 50 km/h (30 km/h when it rains) and an automatic radar is located at its exit in the direction Lyon - Vaise.