What does “Rapid Replacement” mean?

/What does “Rapid Replacement” mean?

“Rapid Replacement” is a bridge replacement method for bridges nearing the end of their service life.  It involves constructing a new bridge on a site near the old bridge.  Once the new bridge is  complete, the road is closed and the old bridge is removed and the new bridge is moved into place.

The entire replacement operation is complete in 24-48 hours.

While closing the highway results in additional traffic delays, the closure is for a very short period of time; typically during a weekend.  The public is warned of the closure well in advance with media and advertising blitzes.