With a need to evaluate more than 100 properties with a total of 200 individual structures, the Archdiocese of Boston asked SGH to develop and implement a condition assessment program that provided them with easy access to information about their...
Carrying about 360,000 commuters every day, Bay Area Rapid Transit (BART) is an important part of the region’s transportation infrastructure. Knowing that the transit system could experience a major earthquake, BART initiated the...
Working with GWWO Inc., SGH provided structural and building enclosure engineering services for several sites as part of an Indefinite Delivery/Indefinite Quantity (IDIQ) contract with the National Park Service (NPS). Our work included...
Following the 1994 Northridge and 1995 Kobe earthquakes, Procter & Gamble Company (P&G) initiated a program for seismic risk mitigation of its owned and leased facilities worldwide. The project presented significant challenges in...
The General Edwards Bridge is a multiple-span steel-girder bridge over the mouth of the Saugus River where it flows into the Atlantic Ocean. The central moveable span over the main navigation channel is a four-leaf, rolling-lift, bascule girder...
The Auburn Street Bridge spans the Mystic River. Constructed in 1906, the single-span concrete arch bridge has abutments that act as large-spread footings. Undermining of the abutments and wing walls caused by scour, raised concerns that the...
The First Street Bridge is a bascule drawbridge carrying traffic westbound over Broad Canal. The bridge suffered from several forms of deterioration including damage to the concrete counterweight, the concrete deck on the approach span, and the...