Arlington County Sues Federal Agencies to Halt Donald Trump's Controversial 250-Foot Triumphal Arch

Local authorities in Arlington, Virginia, have taken legal action against the United States Department of the Interior and the National Park Service in an effort to block President Donald Trump’s proposed triumphal arch.

The massive 250-foot (76-metre) monument, modeled on the Arc de Triomphe in Paris, is planned near Arlington National Cemetery across the Potomac River from Washington and could receive final approval as soon as next month. In a lawsuit filed on Thursday, the Arlington County governing board argued that placing the project within a busy traffic corridor will inflict "significant harm" on local residents and potentially force alterations to nearby flight paths. This marks the first time a governmental body has launched a legal challenge against the planned monument.

Attorneys representing the county assert that the National Park Service failed to conduct an adequate review, warning that the arch threatens public safety by congesting vital thoroughfares utilized by emergency transport services. According to the lawsuit, the agency is rushing toward ground-disturbing construction under a pretext designed to fulfill President Donald Trump's directives, bypassing proper environmental assessments under the National Environmental Policy Act.

Arlington County Board Chair Matt de Ferranti emphasized in a statement that the local community faces the greatest risks from the project, noting that county officials acted in good faith during a review process where their serious concerns were ignored. In response, the Interior Department issued a brief statement maintaining that it continues to follow all applicable laws and regulations, while the White House declined requests for comment.

The proposed structure sits directly within primary airport approach and departure corridors. While the Federal Aviation Administration has mandated that the arch feature a flame on top and floodlight projectors for pilot visibility, aviation experts remain concerned about safety risks. The arch is part of a broader initiative by President Donald Trump to reshape Washington, which also includes plans for the Lincoln Memorial Reflecting Pool, East Potomac Park, and the John F. Kennedy Center for the Performing Arts. Previously, a separate lawsuit was filed by three veterans and an architectural historian, and President Donald Trump recently stated an intention to convert the arch into a military complex equipped for drones and snipers.