Philadelphia, Pennsylvania
Proclaimed “the greatest single effort of late-19 th-century American architecture” by the American Institute of Architects, Philadelphia’s City Hall was one of the world's largest masonry bearing-wall structures when it was constructed in 1901. A multi-phase restoration project aims to maintain the visual and functional coherence of this landmark building by cleaning and repairing deteriorated masonry, stabilizing deteriorated substructures, cleaning and repairing cast-iron ornamentation, restoring wood windows and structural modifications necessary to bring the building into the 21st Century. Entire sections of the structure were scaffolded to the roof line, while the historic fabric below was protected by a series of scaffolded walkways and protection canopies. The project, still underway, is being completed in a high density environment while the building is fully occupied and functioning.
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