The elevated section of Route 203, known as the Casey Overpass or Bridge No. B-16-367, carried the Arborway over Washington and South Streets in Boston’s Jamaica Plain neighborhood. The Casey Arborway Project involved removing structurally...
Constructed in the 1920s, Brentford Hall is a condominium building with load-bearing, mass-masonry walls supported by shallow footings. The abutter to Brentford Hall planned to demolish its existing wood-framed building and construct a new...
The 1100 Broadway project combines the adaptive reuse of the Key System Building, which was heavily damaged in the 1989 Loma Prieta earthquake, with the construction of a new twenty-story building. SGH was the structural engineer for the...
The Savoy, originally built in the late nineteenth century, looks out to Boston’s South End historic district. Real estate developers planned to convert The Savoy to a six-story, luxury condominium building with ground-floor...
Portions of the Hynes Convention Center (Hynes) are located directly over I-90, the Massachusetts Turnpike. A fifty-year-old, cast-in-place concrete slab suspended from the underside of the Hynes served as the ceiling for the western...
The Central Artery/Tunnel (CA/T) Project relocated Boston’s elevated Central Artery below ground. The CA/T tunnel walls used soldier pile tremie concrete (SPTC) slurry walls as a component of the final structure. During later stages of...
The Jamaicaway Towers Parking Garage required extensive concrete demolition and repair due to widespread deterioration of the structural elements. P.J. Spillane engaged SGH to develop and design means and methods to provide temporary support...
A portion of The Colonade’s parking structure, constructed with precast concrete plank supported on precast prestressed concrete beams, was beyond repair. SGH worked with the demolition contractor to develop construction documents for...
Following the 1989 Loma Prieta earthquake, the Golden Gate Bridge District conducted a seismic evaluation of this iconic span located less than 3 mi from the San Andreas fault. The District determined the bridge could not reliably survive a...
Salem State University sought to demolish their existing library and reuse the site for other purposes. SGH developed structural demolition documents and provided construction phase services for the demolition of the six-story, 130,000 sq...
Excavation and heavy civil construction in urban environments directly impact abutters and existing adjacent structures. Noise and dust create nuisance concerns, while demolition, excavation and dewatering can cause earth movement and structural...
New construction in metropolitan areas has direct impacts on immediate neighbors and abutters. While noise and dust are generally nuisance concerns, demolition, vibrations, excavation, and dewatering can cause structural damage to...
Abstract: The Hynes Convention Center is located in the heart of Boston’s historic Back Bay neighborhood. Portions of the Hynes are located directly over I-90, the Massachusetts Turnpike. A 50-year-old cast-in-place concrete slab, suspended...
Abstract: Construction of buildings in congested urban settings often results in damage to existing structures located on adjacent sites. The underlying cause of damage is typically lack of planning and proper care before or during construction,...
Abstract: A building's life-cycle environmental impact includes both operational and embodied components. Operational impacts are those such as energy consumption that occur during use, while embodied impacts are mostly due to the production...
Abstract: New construction projects in congested urban settings commonly require demolition of an existing structure and deep excavation to accommodate several levels of below-grade parking or occupied space associated with the new building. The...
Abstract: This paper applies the emerging concept of Design for Disassembly (DfD) to building structural systems. DfD benefits the environment by simplifying building modifications and end-of-life disassembly. Buildings are more likely to be...
This article discusses the application of life-cycle assessment to salvaged materials and reviews selected roofing and structural materials with good salvage potential. The feature also examines how the U.S. Green Building Council's (USGBC...