25 Projects

National September 11 Memorial and Museum New York

National September 11 Memorial and Museum

New York
,
NY

The “bathtub” slurry wall at the World Trade Center (WTC) site survived when the WTC towers collapsed in 2001, making it a symbol of endurance. WTC site redevelopers wanted a section of the wall...

Billiou-Stillwell-Perine House

Billiou-Stillwell-Perine House

Staten Island
,
NY
Project Contacts:

The earliest section of the Billiou-Stillwell-Perine House was constructed in the early 1660s by Pierre Billiou at a time when Staten Island was part of part of the Dutch colony known as New...

Charlestown Bus Facility

Charlestown Bus Facility Shoreline Stabilization and Yard Improvements

Lynn
,
MA
Project Contacts:

The Charlestown Bus Facility along the Mystic River is the MBTA’s largest bus garage and critical to daily operations. The existing steel sheet pile seawall, which protects the facility from...

Charlestown Bus Facility

Charlestown Bus Facility Shoreline Stabilization and Yard Improvements

Charlestown
,
MA
Project Contacts:

The Charlestown Bus Facility along the Mystic River is the MBTA’s largest bus garage and critical to daily operations. The existing steel sheet pile seawall, which protects the facility from...

Standard Shoring Designs

Standard Shoring Designs

Various
,
MA
Project Contacts:

To help them construct utility trenches, Bond Brothers needed standard shoring designs for temporary excavation support systems. SGH developed a library of standardized designs for use at project...

Belmont Municipal Light Department Underground Transmission Line

Belmont Light, Underground Transmission Line

Cambridge and Belmont
,
MA

Belmont Municipal Light Department (BMLD) needed to upgrade their aging substation and power distribution system to improve reliability and prepare for future demands. Working with Eversource, the...

Johns Hopkins University, Krieger Hall

Johns Hopkins University, Krieger Hall

Baltimore
,
MD

Constructed in 1929, historic Krieger Hall sits on the Keyser Quadrangle at Johns Hopkins University (JHU). It connects to Ames Hall through a vestibule and colonnade walkway to the west and...

Brentford Hall Cambridge Demolition

Brentford Hall

Cambridge
,
MA
Project Contacts:

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...

Digital Airport Surveillance Radar

Digital Airport Surveillance Radar

US and International Locations
Project Contacts:

Raytheon develops radar sites around the world for U.S. government agencies, including the Department of Defense and Federal Aviation Administration. SGH provides engineering services to design...

135 Franklin Street Stoneham MA

135 Franklin Street

Stoneham
,
MA

The five-story building at 135 Franklin Street experienced damage due to settlement. Over the years, the owner undertook repairs at the elevator pit and central corridors and needed to address...

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