The funding for the project in Texas comes from congressional appropriations and is separate from construction funding authorized via an emergency order by President Trump. Border Protection estimated that each mile of wall costs about $17 million dollars.
There are advocacy groups that oppose new wall construction.
Some of the opponents do so on environmental grounds, worrying that walls block animals from crossing the border, and that the barriers could trap animals between the Rio Grande and the wall in the event of a flood.
Others said a wall supports an intolerant immigration system.
“We adamantly reject this move by the Republican House leadership to hand over more than a billion dollars in taxpayer money for a monument to intolerance,” said UnidosUS, a Latino nonprofit advocacy group.
But Border Protection and others said a wall is crucial for giving America control over its borders.
In the fiscal year 2019, more than 800,000 people have been illegally apprehended while crossing America’s southern border, CBP said.