The Trump administration announced plans to begin excavation work within the next two weeks for a proposed 250-foot arch near the National Mall, despite lacking final approval from federal planning authorities. Interior Secretary Doug Burgum stated on Thursday, Sept. 3, 2026, that the government is preparing to start preparatory work for the "Great Triumphal Arch and Military Observation Deck." The project, which resembles the Arc de Triomphe in Paris, would be located at Memorial Circle, a traffic island connecting Washington, D.C., and Arlington, Virginia.
The announcement comes as the administration faces an ongoing lawsuit filed by an architectural historian and three Vietnam War veterans represented by the nonprofit Public Citizen. These plaintiffs argue the arch requires congressional approval and would desecrate Arlington National Cemetery. In response to the excavation announcement, the plaintiffs requested a 14-day restraining order on Friday, Sept. 4, 2026, to halt any physical steps toward construction.
While the administration maintains the arch honors the nation's 250th anniversary, the project has not yet received final clearance from the National Capital Planning Commission (NCPC), which does not meet again until early October. The arch also awaits reviews regarding aviation safety and historic preservation. U.S. District Judge Tanya Chutkan responded to the legal filings late Friday by ordering the administration to provide 48 hours' notice before engaging in any activity on Memorial Circle other than archaeological information gathering.
The project affects a broad range of stakeholders, including veterans who visit Arlington National Cemetery, residents of neighboring Virginia districts, and federal oversight bodies. The scale of the proposed monument is significant: at 250 feet tall, it would be more than double the height of the 99-foot Lincoln Memorial and would exceed Washington D.C.'s standard 130-foot building height limit. Opponents, including Rep. Don Beyer (D-VA), argue the structure would create traffic gridlock and disrupt the historic sightline between the Lincoln Memorial and Arlington House, which was designed to symbolize post-Civil War reconciliation.
A person living in or visiting the capital would notice a physical change to the skyline and potential disruptions to funeral processions at Arlington National Cemetery. The Federal Aviation Administration (FAA) must also determine if the 250-foot height interferes with flight paths, as Memorial Circle sits less than two miles from the final approach path for Ronald Reagan Washington National Airport. The administration's decision to proceed with excavation before final approval sets a potential precedent for how executive branch projects interface with the National Capital Planning Act and the Height Act of 1910.
What happens next depends on the federal courts and upcoming agency meetings. The Trump administration has clarified in legal filings that it intends to begin "mechanically excavating four test pits" for archaeological surveys no sooner than Sept. 21, 2026, with a goal to restore disturbed land by Oct. 31, 2026. However, the NCPC is not scheduled to meet until early October to consider the project. Meanwhile, the administration has filed a motion to dismiss the veterans' lawsuit, citing a recent Supreme Court ruling regarding standing in a separate case involving White House construction.