Federal contractors on 26.09.2017 began building prototypes of President Donald Trump's proposed border wall with Mexico , hitting a milestone toward a key campaign pledge. Construction of eight models in a remote area of San Diego is about three months behind schedule, held up by losing bidders whose protests were eventually denied. A green tarp hanging on a chain-link fence blocked views of the work, which is expected to last 30 days.
Customs and Border Protection may pick several winners, or none. Roy Villarreal , acting chief of the Border Patrol's San Diego sector, said another contractor will evaluate each model, which will be up to 30 feet (9 meters) high and 30 feet long. [enr]