The modernization of the Lincoln Memorial Undercroft showcases a landmark achievement in historic preservation and architectural innovation. Faced with humidity and strict preservation requirements, the team installed a custom structural glass wall system with embedded heating to prevent condensation, protect historic materials and enable digital projections onto the Undercroft’s original surfaces.

Each glass panel, fabricated overseas, was meticulously tested and maneuvered through narrow openings using specialized equipment and coordinated crews. The completed system offers controlled visual access to the Undercroft, safeguards the space from environmental impacts and sets the stage for the National Park Service’s dynamic museum exhibits, while preserving the monument’s iconic character.