The Lincoln Memorial Reflecting Pool in Washington, D.C., is facing ongoing challenges following a $16.4 million renovation that has encountered issues with peeling blue sealant and extensive algae growth. President Donald Trump has attributed these problems to deliberate acts of vandalism, claiming that individuals working at night used sharp objects to damage the pool’s surface and that fertilizer was dumped to encourage algae blooms. However, government documents obtained by officials paint a more complex picture without clear evidence to support these allegations.
After the pool was drained, resealed, and refilled by June 5, National Park Service workers discovered damages within days. These included holes, cracks, peeling caulking, and two long cuts in foam sections located in the pool’s expansion joints—a structural feature allowing concrete slabs to expand and contract. Although a U.S. Park Police report described these cuts as made by razor blades over a 20-foot stretch, the source of the damage remains unclear, and there has been no conclusive proof linking these cuts to the peeling "American flag blue" coating on the pool’s floor. Officials have not presented details to confirm President Trump’s claims that vandals were responsible or that fertilizer was introduced to stimulate algae growth.
By mid-June, workers noted large chips of the blue sealant floating in the water, coinciding with an extensive green algae bloom that has altered the appearance of the pool. Devices installed to control algae, called nanobubblers, experienced technical difficulties, with some units failing due to generator problems. Despite these visible issues, administration representatives continued to publicly declare the renovation a success in the days following.
The renovation was carried out under expedited, no-bid contracts awarded to two companies: a Virginia-based firm tasked with applying the sealant and an Ohio-based company responsible for installing the nanobubblers. This approach bypassed competitive bidding, justified by the urgent desire to complete the project ahead of the nation’s 250th birthday celebrations. Representatives of these companies did not respond to requests for comment, though the sealant applicator acknowledged that a small portion of the project would require repairs, which it intends to complete under warranty.
Industry experts reviewing the available documentation have suggested that the peeling of the sealant may have more to do with insufficient material application and a hurried installation process than solely vandalism. Anthony Flett, CEO of U.S. Coating Specialists, pointed to a lack of professional oversight during the project and indicated that greater care in applying the coating might have prevented much of the damage observed.
Algae blooms have long been a recurring issue in the shallow Reflecting Pool, where stagnant water and warm summer temperatures create favorable conditions. Experts say the algae do not pose a direct health risk, as the pool is not intended for recreational use, but caution that unchecked blooms could lead to harmful cyanobacteria that threaten local wildlife and pets.
The Park Police incident report notes that no suspects have been identified in connection with alleged vandalism, and neither the Interior Department nor the White House has provided documentation supporting the president’s claims of arrests or charges related to the pool’s damage. As of late June, efforts to repair the Reflecting Pool continue, with officials indicating that work may extend beyond the July 4 holiday, delaying the intended timeline for completion.