A tentative deal reached on Monday to prevent another federal shutdown would include 55 miles of fencing along the United States border with Mexico. As of January, no new miles of barriers had been built so far under President Trump, though some construction is expected to begin this month.

UNITED STATES NEW MEXICO NORTH TEXAS CALIF. ARIZONA U.S.-Mexico border 1,954 miles MEXICO UNITED STATES NEW MEXICO TEXAS NORTH CALIF. ARIZONA U.S.-Mexico border 1,954 miles MEXICO UNITED STATES NEW MEXICO TEXAS NORTH CALIF. ARIZONA U.S.-Mexico border 1,954 miles MEXICO UNITED STATES NORTH N.M. TEX. ARIZ. CALIF. U.S.-Mexico border 1,954 miles MEXICO 1,954 mi. U.S.-Mexico border 1,954 mi. U.S.-Mexico border 1,954 mi. U.S.-Mexico border 1,954 mi. U.S.-Mexico border 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall Note: Illustrations of wall types are diagrammatic and not to scale. 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall Note: Illustrations of wall types are diagrammatic and not to scale. 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall Note: Illustrations of wall types are diagrammatic and not to scale. 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 55 mi. Proposed barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 55 mi. Proposed barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 55 mi. Proposed barriers 1,954 mi. U.S.-Mexico border 1,000 mi. Trump’s proposed wall 0 mi. Built based on prototypes 654 mi. Existing barriers 0 mi. New barriers as of January 124 mi. Approved new or replacement 40 mi. Replacement done or started 55 mi. Proposed barriers















Here’s a look at what has actually been constructed on the U.S.-Mexico border in the past year. The U.S.-Mexico border is 1,954 miles long... President Trump has said he wants a 1,000-mile wall made of concrete or steel. He commissioned eight prototypes. No border walls based on these prototypes have been built or funded by Congress. Before Mr. Trump, there were 654 miles of a variety of barriers. As of January, no new miles of barriers had been built under Mr. Trump. Some existing barriers have been replaced. Before this year, Congress had approved 124 miles of new and replacement barriers, using designs already in place, according to the Department of Homeland Security. Of the approved barriers, 40 miles of replacement barriers have been built or started. Officials expect to break ground on an additional 61 miles in 2019. Congressional negotiators proposed on Monday to add 55 miles of fencing as part of a broader immigration deal.

Construction is slated to begin on 14 miles of new barriers in February, which would be the first extension of the current barriers.

Mr. Trump has said several times that the United States has constructed new walls. In January, he said that the administration had built a “brand new wall in San Diego.” While several replacement barriers are being installed in Southern California, Customs and Border Protection had not announced any extensions of the current barriers there at the time.

So far, the most common design for recent construction on the border is steel slats that are 18- to 30-feet tall. This is often taller than the barriers they are replacing, which are also sometimes in disrepair. Mr. Trump has varied on his vision for the wall. In December, he promoted the steel slat-style barrier, while also saying parts of the wall would be all concrete.

A barrier in place in the El Paso sector of the U.S. border with Mexico. A replacement barrier made of steel slats being installed in Naco, Ariz. This concrete wall is one prototype commissioned by Mr. Trump. A barrier in place in the El Paso sector of the U.S. border with Mexico. This concrete wall is one prototype commissioned by Mr. Trump. A replacement barrier made of steel slats being installed in Naco, Ariz. A barrier in place in the El Paso sector of the U.S. border with Mexico. A replacement barrier made of steel slats being installed in Naco, Ariz. This concrete wall is one prototype commissioned by Mr. Trump. Photos by U.S. Customs and Border Protection and Josh Haner/The New York Times