![A U.S. Army Corps of Engineers South Pacific Border District contractor removes construction debris at the Tucson 9 former wall construction site near Naco, Arizona, August 19. The District began safety work A U.S. Army Corps of Engineers South Pacific Border District contractor removes construction debris at the Tucson 9 former wall construction site near Naco, Arizona, August 19. The District began safety work](https://c8.alamy.com/comp/2GK9R25/a-us-army-corps-of-engineers-south-pacific-border-district-contractor-removes-construction-debris-at-the-tucson-9-former-wall-construction-site-near-naco-arizona-august-19-the-district-began-safety-work-in-early-august-at-the-tucson-9-and-tucson-3-former-wall-construction-sites-in-the-us-border-patrols-tucson-sector-this-work-will-not-involve-expanding-the-border-barrier-and-specific-activities-will-include-filling-open-trenches-cutting-and-capping-conduit-making-gate-foundations-safe-making-maintenance-roads-safe-and-grading-around-handholds-and-manholes-no-one-in-this-photo-cr-2GK9R25.jpg)
A U.S. Army Corps of Engineers South Pacific Border District contractor removes construction debris at the Tucson 9 former wall construction site near Naco, Arizona, August 19. The District began safety work
![U.S. Army Corps of Engineers South Pacific Border District contractors prepare maintenance road bridge at the Tucson 3 former wall construction site near Douglas, Arizona, August 19. The District began safety work U.S. Army Corps of Engineers South Pacific Border District contractors prepare maintenance road bridge at the Tucson 3 former wall construction site near Douglas, Arizona, August 19. The District began safety work](https://c8.alamy.com/comp/2GK9R2A/us-army-corps-of-engineers-south-pacific-border-district-contractors-prepare-maintenance-road-bridge-at-the-tucson-3-former-wall-construction-site-near-douglas-arizona-august-19-the-district-began-safety-work-in-early-august-at-the-tucson-9-and-tucson-3-former-wall-construction-sites-in-the-us-border-patrols-tucson-sector-this-work-will-not-involve-expanding-the-border-barrier-and-specific-activities-will-include-filling-open-trenches-cutting-and-capping-conduit-making-gate-foundations-safe-making-maintenance-roads-safe-and-grading-around-handholds-and-manholes-no-one-in-this-ph-2GK9R2A.jpg)
U.S. Army Corps of Engineers South Pacific Border District contractors prepare maintenance road bridge at the Tucson 3 former wall construction site near Douglas, Arizona, August 19. The District began safety work
![Recommended flood resistant wall construction for concrete block walls with stucco or brick veneer. | Building America Solution Center Recommended flood resistant wall construction for concrete block walls with stucco or brick veneer. | Building America Solution Center](https://basc.pnnl.gov/sites/default/files/images/FloodResistantCMUWall_FEMA-P-499_12-10.jpg)