特朗普的边界墙建了多少？
February 11, 2022
In January 2021, when President Joe Biden took office, he immediately signed a handful of executive orders fulfilling campaign promises, one order specifically stopping the construction of Trump’s border wall. The Trump administration completed construction on 458 miles of its border wall. The wall consists of mostly 18- to 30-foot steel bollards in concrete and has features such as sensors, lights, cameras, and parallel roads. The Biden administration recently said it would use border security funding allocated by Congress to close small gaps in border barriers and pay for environmental fixes from the construction sites along the wall. Work will include the installation of drainage to prevent flooding, the addition of missing gates, and the construction of erosion control measures.
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