The U.S. National Park Service said on Friday it supports President Trump’s
proposed 250-foot triumphal arch at the recommended site and scale, calling the
design consistent with historical tradition and a visual focal point for the
250th anniversary. The agency found the project would cause adverse effects to
views and the surrounding landscape — affecting dozens of historic properties
including the Lincoln Memorial and Washington Monument — but identified those
impacts as visual/skyline changes rather than physical damage.