Park Street Station is the oldest subway station in the United States. As part of a system-wide upgrade of light rail transit stations for improved accessibility, the Massachusetts Bay Transportation Authority (MBTA) needed to make...
The Boston Public Library, an Italian Renaissance Revival building completed in 1895, was designed by McKim Mead & White. The Boston Public Library needed a complete restoration. SGH was the structural engineer and building enclosure...
The six-story, steel-moment framed building at 303 Congress Street was constructed in 1983. The building was two bays wide parallel to Congress Street and eight bays wide parallel to the water. Deep precast concrete pile foundations on the water...
Opened in 1971, Neponset River Bridge carries Morrissey Boulevard traffic over Neponset River. The superstructure consists of steel plate girders and cover-plated steel stringers supporting a 7.5 in. thick reinforced concrete deck. The girders...
Dilboy Stadium was constructed by the Commonwealth of Massachusetts in the early 1950s. SGH conducted condition appraisals of the concrete stadium structure in 1988 and again in 1999.
The Aurora Events Center houses a recreational arena for football and other athletic events. The curved, steel-framed roof is constructed of long-span steel joists spanning between box trusses. Minutes after erection, the joists on the south half...
The Ashford Perimeter Center garage is a four-level, 700-car concrete parking structure with post-tensioned, flat slabs supported on concrete columns. During the garage construction, it was discovered that the post-tensioning system in the east-...