The 1906 Hoover Mason Trestle at the historic Bethlehem Steel plant transported raw materials on an elevated rail from the ore yard to the plant’s large furnaces. Abandoned for decades, the reinvented trestle is now the backbone of a new,...
On 19 December 2008, a large portion of the S-shaped, steel-framed walkway under construction at the Atlanta Botanical Garden suddenly collapsed during concrete placement operations. The approximately 575 ft long, cable-stayed canopy bridge...
The John W. Weeks Footbridge spans the Charles River, connecting the Harvard Business School in Boston’s Allston neighborhood with Harvard’s main campus in Cambridge. The bridge, built in 1926, carries the university’s...
The bridge carries a pathway over the Charles River in Riverside Park, which is operated and maintained by the Department of Conservation and Recreation (DCR). SGH assessed the condition of the circa 1915 pony-truss bridge and was the...
The structure is a former railroad bridge spanning the Charles River near Newton Lower Falls. The Department of Conservation and Recreation (DCR) proposed to convert the abandoned railroad bridge to pedestrian use. SGH evaluated the...
Campbell Sports Center, located at the northernmost edge of Manhattan, serves as a gateway to the Baker Athletics Complex and is the first new athletics building commissioned by Columbia University since the 1970s. The five story, 48,000 sq...
The owner of Reservoir Woods sought to provide additional parking space in a new garage, which consists of a basement level and four elevated parking levels with 923 parking spaces. We provided project management, coordination, and...
SGH provided structural engineering services for several new buildings at Maine Medical Center. The project began with a new Women and Infants Birthing Center and led to additional phases of work, including a new parking garage, central...
Cornell University sought to install cable net barrier systems on four university-owned bridges, including a pedestrian suspension bridge that spans over Fall Creek. SGH analyzed the existing suspension bridge structure and the effect of...
In July 1981, two suspended walkways spanning the dramatic atrium of the Hyatt Regency Hotel collapsed during a weekend Tea Dance. As a result, 114 people died and hundreds more were injured. Following the collapse, the construction manager...