Well, it certainly is a design structure, and it's designed at a research facility called FenceLab, where they would load vehicles with 10,000 pounds and ram them into the wall at 40 miles an hour to test the wall's impermeability.
Ciertamente es una estructura de diseño, diseñado por el centro  de investigación FenceLab, donde se cargaban 4,5 toneladas  en vehículos y se empotraban contra el muro a 60 km/hora para probar la impermeabilidad del muro.