Question: how much would it cost to build a wall along the mexican border?
Answer: According to experts and analyses, the actual cost to construct a wall along the remaining 1,300 miles (2,100 km) of the border could be as high as $20 million per mile ($12.5 million/km), with a total cost of up to $45 billion, with the cost of private land acquisitions and fence maintenance pushing up the total cost ...