During construction in 1911, a fire broke out on the 25th floor; at the time, it was the highest fire to date that the New York City Fire Department had fought. In another construction incident, three workers were buried when temporary bracing in the foundation collapsed, though all survived. Steel frame construction took place between June 1910 and July 1911, followed by the installation of exterior walls between March 1911 and November 1912. There were delays in installing the granite facade because the original materials were found to be inferior. By 1913, the superstructure was topped out with the unveiling of "Civic Pride" at the top of the Municipal Building's tower.