Cathedral of Our Lady of the Angels Named Top 10 Seismic Project

(Los Angeles - April 2006) The Cathedral of Our Lady of the Angels was named among the 10 top seismic projects of the 20th century by the Applied Technology Council and Engineering News Record magazine.

The award was given at the awards dinner "Celebrating 100 Years of Seismic Structural Engineering and Construction in the United States" in San Francisco on April 18, 2006, exactly 100 years after the San Francisco Earthquake of 1906.

Leo A Daly was executive architect on the project, also providing engineering services and management of the consultants.

The building was designed with a system of rubber isolator pads and sliders that support and isolate foundations, while oversized joints allow up to two feet of movement in all directions to minimize chances of concrete core cracking during earthquakes. Extensive materials testing to simulate the building's life cycle was critical in selecting stainless steel rebar for some areas. Flyash aggregate and extra cover increased the viability of the concrete.