By January 5, 2021, the U.S. had built new or replacement wall along 452 miles (727 km).[184][185][186] On January 12, Trump held remarks at the border wall in Alamo, Texas, after construction of the wall hit a milestone of 450 mi (720 km).[185][187][188][189]
On January 20, U.S. president Joe Biden signed Proclamation 10142, terminating the national emergency and pausing the construction of the wall.[6][15][190] In a letter notifying Congress of the proclamation, Biden wrote that the declaration of a national emergency had been “unwarranted”.[16][191] Before taking office, Biden said he would not remove parts of the wall constructed during the Trump administration, but would protect the border instead with “high-tech capacity” at the “ports of entry”.[192][193] On April 30, the Department of Defense announced that it was canceling all border wall contracts using funding originally allocated for military purposes.[194]
On April 13, Representative Madison Cawthorn introduced the “Donument Act” (which a spokesperson for Cawthorn explained was a portmanteau of the words “Donald” and “monument”), proposing to designate the unfinished wall and 300,000 surrounding acres as a national monument.[195]
On June 11, the Pentagon announced that it would restore $2.2 billion in funding redirected to the wall back to military projects.[196]
In mid-2021, construction began on 13 miles of border wall in Hidalgo County, Texas.[197] By October 2021, several border wall construction contracts had been cancelled and, in some cases, land that was acquired by the government from private property owners via eminent domain, was returned to their owners.[198] On July 28, 2022, the Biden administration announced it would fill four wide gaps in Arizona near Yuma, an area with some of the busiest corridors for illegal crossings.[199]
https://en.wikipedia.org/wiki/Trump_wall#Organ_Pipe_Cactus_National_Monument
Check my links: most of those miles were replacement miles.