Algae has turned the Lincoln Memorial Reflecting Pool green just days after a multimillion-dollar makeover [1].

The failure of the restoration occurs as the U.S. prepares for America's 250th anniversary celebrations [2]. The rapid degradation of the site raises questions about the quality of materials used and the effectiveness of the project's execution.

National Park Service crews said that the new "American flag blue" coating is coming off [3]. The paint, intended to give the pool a distinct patriotic hue, is now chipping and flaking away from the structure [4]. This failure has coincided with a resurgence of algae growth, which has stripped the water of its intended blue appearance and returned it to a green state [1].

The cost of the overhaul is reported between $14 million [5] and $14.8 million [1]. The project was carried out under the direction of President Donald Trump to refresh the iconic Washington, D.C. landmark. However, the reappearance of algae and the flaking paint have surfaced only days after the project's completion [3].

Observers said that the pool's inability to maintain its color and structural integrity undermines the aesthetic goal of the makeover. The National Park Service is now facing the task of addressing both the biological bloom and the mechanical failure of the paint coating [3].

The "American flag blue" coating is coming off.

The rapid failure of the reflecting pool's restoration suggests a potential mismatch between the chosen aesthetic materials and the environmental conditions of the site. Because the project was tied to the high-profile 250th anniversary of the U.S., the visible decay of a multimillion-dollar federal project may lead to increased scrutiny of government contracting and maintenance standards for national monuments.