US Customs and Border Protection has released drone video that shows miles of a “new border wall system” on Arizona’s porous boundary with Mexico.

“Construction crews continue work on the new border wall system along the SW border near San Luis, AZ. In partnership with @USACEHQ, CBP has constructed over 60 miles of new border wall system along the SW border since 2017 and expects to complete 450 miles by the end of 2020,” CBP said in a tweet.

The post included the 55-second video, which shows a new, taller barrier that had replaced a 10-foot fence that asylum seekers and illegal immigrants were easily able to breach.

Crews in Arizona and New Mexico continued construction of taller border fencing funded through a national emergency declaration by President Trump.

In Arizona, crews were installing 30-foot steel fencing to replace older barriers next to a border crossing known as Lukeville Port of Entry.

The work on his hallmark campaign promise involves mostly replacement fencing along a 46-mile stretch of desert west of Santa Teresa, New Mexico, and on two miles of Organ Pipe Cactus National Monument in Arizona.

At the New Mexico site, about 20 workers recently placed rebar frames for concrete footers along the path of the wall.

A 50-foot crane towered over the site, standing out on the treeless brushland and cracked washes that stretch for miles in every direction.

Workers broke ground between Columbus and Santa Teresa — small towns near ports of entry along the border between New Mexico and the state of Chihuahua, Mexico.

Both projects are being funded with money initially allocated to the Defense Department that was redirected by Trump’s executive order.

Use of the money was previously frozen by lower courts while a lawsuit proceeded.

Last month, however, the Supreme Court cleared the way for the use of about $2.5 billion — and defense officials were expected to announce billions more for the wall as early as this week.

A border wall — that Mexico would pay for — was one of Trump’s main promises during the 2016 campaign, when chants of “Build the wall!” resonated at MAGA rallies.

But Congress has resisted funding all of it without concessions from Team Trump on protections for Dreamers and other immigration issues.

This year it allocated $1.4 billion, but the president wanted much more, at least $25 billion.

The administration has awarded $2.8 billion in contracts for barriers covering 247 mile, with all but 17 miles of that to replace existing barriers instead of expanding coverage.

Various forms of barriers already exist along 654 miles — about a third — of the border.

The construction comes as immigrant apprehensions have fallen sharply over the past two months due to the summer heat and a clampdown in Mexico.

Hundreds of thousands of migrants have come to the US over the past year, mostly Central American families with children who turn themselves in to agents instead of trying to dodge them.

Environmentalists have sued over some of the construction contracts for the fencing, saying the government unlawfully waived dozens of laws so it could build on protected lands.

Conservationists say a wall — and its construction— would be detrimental to wildlife habitat and would block the migration of animals such as bighorn sheep and wolves. Two cases are pending in federal courts.

With wires