The Biden administration will waive 26 laws to build additional border barriers in the Rio Grande Valley, according to a notice posted to the Federal Register Wednesday, citing “high illegal entry.”

Construction of the wall will be paid for using already appropriated funds earmarked specifically for physical border barriers. But the move comes at a time when a new surge of migrants is straining federal and local resources and placing heavy political pressure on the Biden administration to address a sprawling crisis.

Border Patrol reported nearly 300,000 encounters in the Rio Grande Valley sector between last October and August, according to federal data. Last month, Border Patrol apprehended more than 200,000 migrants crossing the US-Mexico border, the highest total this year.

The Department of Homeland Security had concluded “it is necessary to waive certain laws, regulations, and other legal requirements in order to ensure the expeditious construction of barriers and roads” in Starr County, Texas, along the US border with Mexico, Homeland Security Secretary Alejandro Mayorkas said in the filing posted in the US Federal Registry.