Nearly 700 Miles of Fencing at the US-Mexico Border Already Exist

The barriers were completed as part of the Secure Fence Act of 2006.

ByABC News
January 26, 2017, 6:38 AM

— -- President Donald Trump's longtime campaign promise of building a wall at the U.S.-Mexico border could be one step closer to fruition after he signed an executive order Wednesday announcing a series of steps to deter "illegal immigration from Central America."

But some 700 miles of border fencing had already been completed along the country's nearly 2,000-mile border with Mexico, much of it during Barack Obama's presidency, as part of the Secure Fence Act of 2006, which was signed by George W. Bush.

The type of fencing that extends from California to Texas varies according to the terrain and the population of the areas it borders, according to images released by the U.S. Customs and Border Protection in 2011. The types of fencing includes wire mesh, chain link, post and rail, sheet piling, concrete barriers for vehicles and X-shaped steel beams for livestock.

PHOTO: A worker stands next to a newly built section of the U.S.-Mexico border fence at Sunland Park, U.S. opposite the Mexican border city of Ciudad Juarez, Mexico January 25, 2017. Picture taken from the Mexico side of the U.S.-Mexico border.
A worker stands next to a newly built section of the U.S.-Mexico border fence at Sunland Park, U.S. opposite the Mexican border city of Ciudad Juarez, Mexico January 25, 2017. Picture taken from the Mexico side of the U.S.-Mexico border.

Trump has said he wants a concrete barrier as high as 55 feet tall and has described his proposed wall as "impenetrable, physical, tall, powerful, beautiful."

Under the Secure Fence Act, the pedestrian border fencing completed in fiscal year 2007 was estimated to cost about $2.8 million per mile, according to a 2009 report from the Government Accountability Office. It was constructed using mostly the U.S. Army Corps of Engineers and the National Guard, according to the Congressional Research Service. The 2009 report also found that fencing constructed in fiscal year 2008, which mostly used private contractors, cost about $3.9 million per mile.

“Beginning today, the United States of America gets back control of its borders, gets back its borders,” Trump said Wednesday at the Department of Homeland Security after signing two executive orders related to immigration. The executive order calls for the immediate construction of a physical wall on the southern border to achieve "operational control," which it defines as "the prevention of all unlawful entries into the United States, including entries by terrorists, other unlawful aliens, instruments of terrorism, narcotics, and other contraband.”

Building a new 1,000-mile wall could cost as much as $40 billion, according to an analysis published in the MIT Technology Review. Maintenance of barriers along the southern border will also be costly. The Congressional Research Service estimated in 2009 that double layer fencing would cost an estimated $16.4 million to $70 million per mile over 25 years, depending on the amount of damage sustained.

During Wednesday's press conference, Trump did not specify how he plans to pay for the wall, but in the executive order he asks to allocate available sources of federal funding to the "planing, designing, and constructing of a physical wall" as well as to project long-term funding requirements from the Congressional Budget Office. He also calls for each executive department and agency to identify and report all foreign aid to Mexico.

Earlier this month, Trump said that Mexico will reimburse the U.S for the cost of building the wall. Mexican officials have repeatedly said they will not pay for the wall.

On Wednesday, the new president said that he has "deep admiration for the people of Mexico," adding that he looks forward to meeting with Mexico's President Enrique Peña Nieto and that he "truly" believes that the U.S. and Mexico can improve relations going forward.

Peña Nieto may cancel a visit with Trump scheduled for next week in response to today's announcement, a Mexican official told ABC News. The Mexican president has been under fire in his country recently for being seen as too accommodating to Trump.

PHOTO: View of the border fence between the US states of Texas and New Mexico, left, and Ciudad Juarez, Mexico, right, on Jan. 25, 2017.
View of the border fence between the US states of Texas and New Mexico, left, and Ciudad Juarez, Mexico, right, on Jan. 25, 2017.

During his confirmation hearing earlier this month, newly-minted DHS Secretary Gen. John Kelly said that "a physical barrier in and of itself will not do the job."

"It has to be a layered defense," he said, adding that even with a wall extending from the Pacific Ocean to the Gulf of Mexico, you would still have to back that wall up with patrolling by human beings, sensors and observation devices, he said.

Border Patrol already employs a "digital wall" composed of about 8,000 cameras, which monitor the southern fence and ports of entry. Its resources also include more than 11,000 underground senors, 107 aircraft, eight drones, 175 mobile surveillance units and 84 boats.

“We can spend billions of dollars to build a 10-foot wall on top of a 10,000-foot mountain,” former DHS Secretary Jeh Johnson said in November, “but if you’ve come all the way from Central America, it’s not going to stop you.”

PHOTO: View of the border line with the marker between Mexico and the U.S in the community of Sasabe in Sonora state, Mexico, on January 13, 2017.
View of the border line with the marker between Mexico and the U.S in the community of Sasabe in Sonora state, Mexico, on January 13, 2017.

The president predicted Wednesday that his executive orders will "save thousands of lives, millions of jobs, and billions and billions of dollars."

ABC News' Geneva Sands and Jordyn Phelps contributed to this report.

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