Engineers are drilling and taking soil samples as the United States Army Corps of Engineers begins preliminary preparations for construction of segments of the U.S./Mexico border wall, according to the Department of Homeland Security.
The drilling and soil samples will determine what type of barriers will be most effective in the different types of geography along the borders. The Department of Homeland Security has identified the San Diego area and the Rio Grande Valley as priority regions for new border walls.
Construction of border wall prototypes is scheduled to begin this summer in the San Diego area. Prototypes will be added to the existing border walls in Sand Diego allowing the agency the chance to evaluate which barriers will be most effective.