In April 2015, the kilns' status was assessed and a preservation plan for their long-term stewardship was created. The assessment identified baseline stabilization needs affecting all the kilns as well as individual kiln concerns, and one kiln was fully restored as part of the process. Originally 120 feet tall, the kilns still stand despite years of weathering and attempts to deconstruct them. Although the preservation plan has been completed, preserving the kilns for future generations will require additional planning and funding and greater public appreciation of their importance. The kilns are an iconic feature of the Lehigh Valley cement district and central to the history and community culture of Coplay, and their national significance is recognized by their listing on the National Register of Historic Places. When they were used to make portland cement, the kilns were housed in a building with their tops towering forty feet above the roof, but after they were shut down in 1904 and the building was removed in 1951, they were left exposed to the elements they were never meant to withstand. Decades of rain, snow, and wind allowed water to infiltrate the kilns, loosening mortar, cracking and dropping bricks, and allowing vegetation to grow and further accelerate deterioration.
