The one-mile border wall built by a Steve Bannon-backed private group must remain open every day, federal officials have decreed.

U.S. officials from the International Boundary and Water Commission said on Tuesday the barrier in New Mexico was blocking a government-owned access road and the agency had repeatedly asked the group to keep the gate open.

As a compromise over 'security concerns', the IBWC pledged to lock the gate every night.

'It's not the border wall that we have a problem with,' agency spokeswoman Lori Kuczmanski told WGNO-TV. 'The problem is the gate is on federal property. You just can't come in and build a gate on somebody's property without asking — especially not giving them the keys and walking away from it. It's not right.'

Triple-amputee veteran Brian Kolfage's non-profit We Build the Wall Inc. built a portion of its promised border last month, spanning one mile and costing $6-$8 million

The group bought the property the wall sits on from a private owner. It starts at the Rio Grande River and goes up Mount Cristo Rey, ending at a cliff (location shown on map)

The IBWC applies the boundary and water treaties of the United States and Mexico and settles differences that may arise in their application.

The agency quickly raised objection over the construction of the border barrier last month.

The wall, which spans just under one mile in length, went up over the weekend on private property running next to El Paso, Texas, through Sunland Park, New Mexico, triple-amputee veteran Brian Kolfage told DailyMail.com last month.

Kolfage is operating under an entity called We Build the Wall Inc., which is a Florida non-profit tax-exempt advocacy organization, with former White House Chief Strategist and former Breitbart News executive chairman Steve Bannon as director, and former Kansas Secretary of State Kris Kobach on the team as well.

Kolfage estimated that the total cost of the wall built over the weekend to be between $6 million and $8 million

Kolfage said his organization had to build in secrecy for fear of groups opposing the building of a border wall impeding the project's process. The non-profit's director Steve Bannon (pictured) said, 'We had to catch them by surprise,' while discussing the building in between his weekend in Kazakhstan for a geopolitical seminar

'It’s just under one mile long,' Kolfage said. 'The wall starts at the Rio Grande River and goes up Mount Cristo Rey where the US Army Corps of engineers said it was impossible to build.

Kolfage said once everything is said and done, his organization will sell the wall, which cost between $6million and $8million to build, to the federal government for the bargain price of $1.

'We're going to sell this wall to them for $1 and release the title to them,' he said. 'We can't give the government the money because that's not the way it works. But we wanted to show the American people how to get this job done.'

Kolfage told DailyMail.com that this build has been approved by Trump and the Department of Homeland Security (DHS). A DHS official told DailyMail.com that 'this project is not connected to DHS efforts.'