<p>The first panels of the Santa Teresa Border Wall Replacement Project have been installed west of the Santa Teresa Port of Entry, near El Paso, on the US-Mexico border, US authorities said</a>.</p><p>US Customs and Border Protection said</a> that the project was instigated by presidential executive order</a> and was expected to cost about $73.3 million.</p><p>The planned 390-day project involves replacing a 20-mile stretch of existing vehicle barriers with 18-to-30-foot high bollard-style walls, authorities said.</p><p>This footage shows the first panels being put into place. Credit: Mani Albrecht via Storyful</p><br />