The Federal Aviation Administration (FAA) has been requested to evaluate the flight risks associated to the intended construction of Trump’s planned ‘triumphal arch’ in Washington D.C.. This is because the proposed location for the structure could potentially disrupt a flight path leading to Ronald Reagan Washington National Airport (DCA).
Potential Flight Disruptions
The National Parks Service, a division of the Department of Interior, has submitted a request to the FAA to investigate potential aviation-related issues associated with the prospective construction of the ‘triumphal arch’ proposed by Trump. The proposed structure would be built to a height of 250 feet in a patch of grass at the end of Memorial Bridge, across from the Lincoln Memorial, less than two miles from one of the busiest airports in the nation, Ronald Reagan Washington National Airport (DCA).
FAA regulations warrant that any structure over 200 feet that has potential to interfere with airspace requires extensive review to ensure it is safe to build. Potentially measuring up to 279 feet including the elevated site beneath the structure, the structure fits into this category, and concerns have already arisen about whether the arch might disrupt flights in and out of DCA. There have been reports that some insiders fear that loyal government panels will push the proposal through no matter what, approving it regardless of any risks to safety.
The FAA Investigation
The FAA’s Obstruction Evaluation Group will conduct a formal aeronautical study that will observe a range of criteria to determine if the ‘triumphal arch’ will disrupt aviation activity in the area, from its construction to its completion. For the duration 0f the assessment, the FAA will consult with other branches like the Department of Defence, the Department of Homeland security, and the armed and naval forces.
Some of the criteria being looked at in the evaluation include runway length, the airport elevation, the structure’s exact coordinates, ground elevation, and whether temporary cranes to build the structure will exceed the permanent height. These, among other components, will be assessed to issue an official ruling of either “Determination of No Hazard” or a “Determination of Hazard.”
Pre-existing Precarious Piloting
The arch’s proposed location, while intended to be symbolic, is beneath a busy flight corridor for DCA, causing safety concerns. Because of the DCA’s central location in the city, pilots are already required to navigate a variety of hazards and tight squeezes when descending or ascending via the ‘north approach’ flight path in order to avoid key landmarks, such as the Pentagon. As a result, the path is a site of multiple highly scrutinised and notorious crash incidents, including a tragic mid air collision involving an American Airlines plane and a helicopter that occurred just last year.
Moreover, the surrounding airspace is also extremely crowded, with more than 20,000 flights passing through Reagan National Airport in April 2026 alone. Trump’s arch will further complicate the corridor, a flight path already fraught with obstacles.
A Waiting Game
Although the FAA asserts that these evaluations aim to be completed in 90 days, they tend to take much longer, with some reports of them taking nine months. A request for the FAA to conduct an obstruction analysis is usually made 45 days prior to any construction starting.
The government Commission of Fine Arts (CFA) has already approved preliminary designs for the ‘triumphal arch’, and plans to review a revised concept on May 21. The agency claimed it was unable to comment whether the FAA’s evaluation would impact the timing for their actions, implying that they would not necessarily wait for the completed evaluation before approving the plans. While the FAA’s findings will be significant, the president can move ahead with the ambitious project without final determination from the FAA.
However, if a hazard is determined by the FAA, the Trump administration will be given 60 days to modify the project to ensure it is safe for aviation. These adjustments could include height reductions, hazard lighting, or other alterations. According to CNN, when asked about the evaluation, a White House official maintained that the arch would not have any impact on flights in and out of DCA.
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