translate English to French: AI has advised that the vertical clearance over the highway (i.e. the profile of the road) will increase from the standard minimum of 5.4 m to 5.7 m in order to accommodate a future ballast deck.
AI a indiqué que le gabarit vertical au-dessus de la route (c.-à-d. le profil de la route) passera du standard minimum de 5,4 m à 5,7 m en vue d'un futur pont à tablier ballasté.