Many factors must be considered before the construction of a wind energy facility.

It could be heard for miles before the construction of dams.

"Even before the construction, there were delays during the morning and evening hours in the area."

The neighborhood itself reflected the change even before construction began.

All of these things will require site evaluation before construction.

However, the library stock began to be collected before the construction of the building.

That school existed prior to 1799, at least 10 years before the construction of this building in 1809.

According to the plan, the baiting would begin 60 and 90 days before construction.

The first troops arrived in November 1917, before construction was completed.

I think this is because most is from either before or during the construction.