The Border Patrol reinforced the border wall with wire in urban areas near ports of entry in Nogales and San Luis.

bollard-style fencing around Arizona’s largest port of entry. The remaining three miles of concertina wire went up along a stretch of the border wall extending east from the San Luis port of entry.

The border wall system is made up of two main types of fencing: Pedestrian fencing: Bollard-style fencing made of steel and/or concrete measuring up to 30 feet tall. Vehicle barriers: Four to six-foot ...

The border wall system is made up of two main types of fencing: Pedestrian fencing: Bollard-style fencing made of steel and/or concrete measuring up to 30 feet tall. Vehicle barriers: Four to six ...