On September 4, three military veterans and one architectural historian filed a request in US District Court for a temporary restraining order against test pit excavations planned near Arlington National Cemetery. The US Interior Department announced on September 3 that work would proceed under a 1925 law authorizing the Arlington Memorial Bridge, with four test pits scheduled to begin on or after September 21. Plaintiffs argue the administration lacks legal authority for the 76-meter structure, while the government maintains the pits do not constitute construction.