The bridge closure was so fast because there were already police on the bridge for traffic control around the repair crew.
Had it happened during the day, police may not have made it to the entrances in time. Or, if during rush hour, there may not have been time for the bridge to clear even if the entrances were closed.
Had it happened during the day, police may not have made it to the entrances in time. Or, if during rush hour, there may not have been time for the bridge to clear even if the entrances were closed.