A United States federal judge has issued a temporary block on the construction of President Donald Trump's proposed 250-foot (76-metre) "triumphal arch" in Washington, D.C. US District Judge Tanya Chutkan ordered a 14-day pause on any construction activities related to the arch, a move that comes despite the Trump administration's recent indication that work could commence as early as Thursday.

The decision by Judge Chutkan follows a series of legal challenges filed against the ambitious project, including a lawsuit brought forth by a group of Vietnam War veterans in February. The proposed location for the arch near Arlington National Cemetery has sparked significant controversy, with concerns raised that its monumental scale could obstruct the significant sightline between the cemetery and the Lincoln Memorial.

Veterans involved in the lawsuit have argued in court filings that this specific line of sight was intentionally designed to symbolize national unity and strength following the Civil War. The National Capital Planning Commission (NCPC) recently held a nine-hour hearing on the arch, ultimately approving the project by a vote of 8-4, though this decision was met with opposition from dozens of witnesses.

President Trump first proposed the arch last year, envisioning it as a commemoration of 250 years of American independence and comparing it to iconic structures like Paris's Arc de Triomphe. The "Arc de Trump," as it has been dubbed, is one of several large-scale projects proposed by the president for the nation's capital.

This judicial pause is not the first time President Trump's plans for Washington, D.C. have faced legal hurdles. Many of his initiatives have been previously blocked by judges. The recent Democratic victories in the midterm elections, securing control of Congress, are also expected to lead to increased scrutiny of his administration's projects.

In addition to the arch, President Trump recently signed a proclamation designating the Oval Office and Cabinet Room as a national monument. This action was part of a series of signature renovation and designation events following election losses.

The current order from Judge Chutkan supersedes a temporary order that was issued earlier in the month, indicating ongoing judicial review of the project's legality and potential impacts.

Past projects facing opposition include plans for a new White House ballroom, which, despite legal challenges, received approval from the US Supreme Court. The proposed triumphal arch has been met with widespread opposition beyond legal challenges, reflecting broader concerns about the reshaping of the capital city under the current administration.