How a $14m paint job left Washington's landmark reflecting pool green (opens original article in a new tab)

A $14m paint job intended to restore the Lincoln Memorial Reflecting Pool to 'American-flag blue' instead turned it green, leading to algae growth and cleanup efforts ahead of the 250th anniversary of America.

• US President Donald Trump ordered the Lincoln Memorial Reflecting Pool to be painted 'American-flag blue' in April 2026
• The $14m paint job resulted in a deep green color with algae growth, prompting cleanup efforts using hydrogen peroxide and nanobubble ozone technology
• The project faced controversy over contract awards and cost overruns, with some questioning the effectiveness of the cleanup methods