Please correct logic problems in the text.
In the late 1970s, the Grand Maison Dam project was launched, it was an economic windfall for the commune and the whole region. The windfall lasted 10 years and brought in hundreds of workers.
In the late 1970s, the Grand Maison Dam project was launched, it was an economic windfall for the commune and the whole region. The project lasted 10 years and brought in hundreds of workers.