Building a wall or other barrier along the entire U.S.-Mexico border would cost about $21.6 billion, and take up to three and a half years to complete, according to an internal Department of Homeland Secretary document.
The estimate is almost double the cost cited by President Donald Trump — who made a border wall built at Mexico's expense his signature issue throughout the presidential race — as well as new DHS Secretary John Kelly, who commissioned the report.
The document containing the estimate, first reported by Reuters, lays out a three-phase plan about where construction could begin along the 1,250 miles of border without physical barriers and it details challenges to constructing a wall.
But the report also leaves questions unanswered, namely what the wall will look like.
Kelly toured the Arizona-Mexico border near Nogales on Thursday and met with Gov. Doug Ducey, officials from the federal agencies under DHS and the state's four border sheriffs. One purpose of those meetings was to gauge their opinion of the usefulness of a wall.
"We talked about the value of technology in some areas and physical structures in others, but there's a lot to be vetted out in that," Pima County Sheriff Mark Napier said after the meeting.
Trump has said a border wall would cost anywhere between $10 billion and $12 billion. Senate Majority Leader Mitch McConnell told congressional Republicans during a private retreat in Philadelphia that the cost would be closer to $12 billion to $15 billion.
The higher estimate in the DHS report is due in large part to the ballooning costs of acquiring private land, including through eminent domain. Large sections of the border, particularly in Texas, are privately owned.
"People's individual property will be condemned by the federal government for construction of the wall," Denise Gilman told The Arizona Republic. "That’s what happened in the past. And that’s what would have to happen."
She led an effort in 2013 at the University of Texas Law School to document fencing already in place at the Texas-Mexico border. They found barriers erected less than a decade ago had effectively stripped owners of their property, or cut it in two.
The estimate is almost double the cost cited by President Donald Trump — who made a border wall built at Mexico's expense his signature issue throughout the presidential race — as well as new DHS Secretary John Kelly, who commissioned the report.
The document containing the estimate, first reported by Reuters, lays out a three-phase plan about where construction could begin along the 1,250 miles of border without physical barriers and it details challenges to constructing a wall.
But the report also leaves questions unanswered, namely what the wall will look like.
Kelly toured the Arizona-Mexico border near Nogales on Thursday and met with Gov. Doug Ducey, officials from the federal agencies under DHS and the state's four border sheriffs. One purpose of those meetings was to gauge their opinion of the usefulness of a wall.
"We talked about the value of technology in some areas and physical structures in others, but there's a lot to be vetted out in that," Pima County Sheriff Mark Napier said after the meeting.
Trump has said a border wall would cost anywhere between $10 billion and $12 billion. Senate Majority Leader Mitch McConnell told congressional Republicans during a private retreat in Philadelphia that the cost would be closer to $12 billion to $15 billion.
The higher estimate in the DHS report is due in large part to the ballooning costs of acquiring private land, including through eminent domain. Large sections of the border, particularly in Texas, are privately owned.
"People's individual property will be condemned by the federal government for construction of the wall," Denise Gilman told The Arizona Republic. "That’s what happened in the past. And that’s what would have to happen."
She led an effort in 2013 at the University of Texas Law School to document fencing already in place at the Texas-Mexico border. They found barriers erected less than a decade ago had effectively stripped owners of their property, or cut it in two.