Reflecting Pool's new blue coating peels days after $14M renovation

The Lincoln Memorial Reflecting Pool, a central feature of the National Mall, now shows large sections of its fresh blue coating lifting from the concrete floor while algae returns to the water less than two weeks after the site reopened. Visitors have collected loose flakes as souvenirs, and crews have deployed vacuums and chemical treatments to manage the growth.

The $14.8 million project, completed in early June 2026 under National Park Service oversight, involved draining the pool, applying an industrial coating described as American flag blue, and refilling it. The agency selected the contractor and set the technical specifications. Within days, the algae bloom reappeared across much of the surface and the sealant began separating in visible patches.

President Trump posted on Truth Social that vandals had applied chemicals to damage the new surface, comparing the act to recent damage on nearby grass. He stated that law enforcement was investigating, that the affected area remained small, and that the algae was already 75 percent cleared with full repair expected the following week. No laboratory confirmation of external chemicals has been released by investigators.

National Park Service crews responded with ozone nanobubbles and hydrogen peroxide treatments, reporting no harm to the environment. Historical maintenance records show similar algae returns within days or weeks after earlier renovations, including one in 2012. The current work formed part of preparations for the nation's 250th anniversary in 2026.

Photos and videos circulated widely show the extent of both the peeling and the green water. Critics on social media and in commentary questioned the project's durability and cost. The agency continues daily cleaning while the investigation proceeds.