Saint Patrick’s Cathedral

Comprehensive preservation and restoration of the Cathedral, which encompassed work on the exterior and interior as well as on its stained-glass windows. It also included restorative work on the entire Cathedral campus, including significant below-grade alterations related to geothermal well and equipment installation.  Preservation and restoration of the Lady Chapel included repair of the stained-glass […]

Saint Francis de Sales Cathedral

Byzantine-Romanesque style church designed by Henry Dagit, a well-known Philadelphia architect. Built in 1908, the Roman Catholic church features pioneering construction technologies, including Guastavino vaults and domes and reinforced concrete.  Initial phases included a structural conditions assessment, non-destructive and material testing.  Subsequent phases included a full analysis of the main dome and its supporting structure, […]

New York State Pavilion
1964-65 World’s Fair

Philip Johnson designed three structures for New York State for the 1964-65 World’s Fair: three Observation Towers, the tallest being 226 ft; the Tent of Tomorrow, at the time the largest suspension roof structure in the world; and the Theaterama, a single drum-shaped volume of reinforced concrete. The structures are listed on the National Register […]


Investigation and structural conditions assessment for the redevelopment of the former Neuhoff Packing Company, a 14-acre site located on the west bank of the Cumberland River. The site includes several buildings constructed between 1906 and 1950, and framed with brick masonry, cast in place concrete and steel. The site’s signature building is the 260,000 sf […]

Eastern Market Cold Storage

Investigation, structural conditions assessment and load analysis for the redevelopment of the former Eastern Market Cold Storage Warehouse and several adjacent buildings. The six-story cold storage warehouse has several construction types, including concrete, steel, masonry and flat arch terra cotta floor systems. A preliminary structural analysis was performed to determine the gravity and lateral effects […]

Illinois State Capitol – Dome

The Illinois State Capitol was constructed between 1868 and 1888, and at 361 feet, it is the tallest capitol dome in the United States. As part of a multi-phased approach, the team performed a structural conditions assessment, non-destructive and material testing and a preliminary structural analysis of the wrought iron dome and masonry drum walls. […]

Frelinghuysen Morris House and Studio

George L.K. Morris and Suzy Frelinghuysen, prolific abstract artists since the late 1930’s, were a remarkable couple at the leading edge of the national and international art scene. In 1931 Morris commissioned a studio to be built on a portion of his parents’ estate in the Berkshire’s, near Lenox, MA. It was the first modern […]