Alejandro Mayorkas, head of the Department of Homeland Security, is directing Customs and Border Protection to remediate unfinished Department of Defense border wall projects.

The work CBP will undertake includes efforts to prevent flooding, construction of erosion control measures and closing “small gaps that remain open from prior construction activities and remediating incomplete gates,” according to a recent DHS release.

A sizable majority of the Defense Department wall projects are in the Tucson Sector, and work there will start after a safety analysis is conducted.

The release noted that rescue gates along the wall, which provide access to irrigation canals to federal officers during extreme flooding, are not currently operable due to “missing hardware or being welded shut.”