Cathedral of the Immaculate Conception
Constructed between 1848 and 1892, the Cathedral is a National Historic Landmark and the second Roman Catholic Cathedral built in NY State.
We provided structural engineering services for the project which included the exterior masonry restoration and interior renovations.
The Cathedral’s existing vertically bedded brownstone had extensively delaminated and failed primarily from freeze-thaw cycles. The exterior restoration included replacement of the brownstone for 60 percent of the building including the 190-foot-high north tower. At the time, it was considered the largest brownstone restoration project in the Western Hemisphere.