The ship repair shop called “Slipway d’Arles” is a towway requiring modernisation and extension work aimed at adapting the site to current and future contingencies that are the increase in river traffic and the general increase in the size of the vessels. Thus, the operation consists of modernising this site by -the creation of two additional hoisting lanes bringing the capacity of the vessels from 120 to 135 metres, -the renovation of the waiting station involving the creation of an internal track connecting it to the ramp, — bringing it to environmental standards.