Use "heavy earth" in a sentence

1. Since 1950 the station had been banned to aircraft weighing more than 60,000 lbs. and heavy earth-moving equipment now moved in to lengthen and strengthen the main runway.

Depuis 1950, la station était interdite aux appareils d’un poids de plus de 60,000 livres et afin d’allonger et de renforcer la piste principale, on employa des machines de terrassement.