President Donald Trump's proposed US-Mexico border wall would be a series of fences and walls that would cost as much as $21.6bn, and take more than three years to build, according to a US Department of Homeland Security internal report seen by Reuters on Thursday. The estimated price tag is much higher than a $12bn figure cited by Trump in his campaign and estimates as high as $15bn from Republican House Speaker Paul Ryan and Senate majority leader Mitch McConnell. The report is expected to be presented to John Kelly, secretary of the Department of Homeland Security (DHS), in coming days, although the administration will not necessarily take the actions it recommends. The plan lays out in three phases what it would take to seal the border of just over 1,250 miles (2,000km) by the end of 2020. With 654 miles (1,046 km) of the border already fortified, the new construction would extend almost the length of the entire border. Many cost estimates and timelines have been floated since Trump campaigned on the promise of building a wall. The report seen by Reuters is the work of a group commissioned by Kelly as a final step before moving forward with requesting US taxpayer funds from Congress and getting started on construction. A DHS spokeswoman said the department does "not comment on or confirm the potential existence of pre-decisional, deliberative documents". A White House spokeswoman said it would be "premature" to comment on a report that has not officially been presented to the president. The report said the first phase would be the smallest, targeting sections covering 26 miles (42km) near San Diego, California; El Paso, Texas; and in Texas's Rio Grande Valley. The report assumes DHS would get funding from Congress by April or May, giving the department sufficient time to secure contractors and begin construction by September. Trump has said Congress should fund the wall upfront, but that Mexico would reimburse US taxpayers. Mexico has said it will not pay. Several US congressional delegations are visiting the border this month to assess funding needs, according to several people familiar with the travel plans. The report shows the US government has begun seeking waivers to address environmental laws on building in some areas. It also shows the government has begun working with existing contractors and planning steel purchases for the project. Trump told law enforcement officials on Wednesday, "The wall is getting designed right now." The report accounted for the time and cost of acquiring private land, one reason for its steep price increase compared with estimates from Trump and members of Congress. Bernstein Research, an investment research group that tracks material costs, has said that uncertainties around the project could drive its cost up to as much as $25bn. The second phase of construction proposed in the report would cover 151 miles (242km) of border in and around the Rio Grande Valley; Laredo, Texas; Tucson, Arizona; El Paso, Texas and Big Bend, Texas. The third phase would cover an unspecified 1,080 miles (1,728km), essentially sealing off the entire border.
