145 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...

Seabrook Station Nuclear Power Plant

Seabrook Station Nuclear Power Plant

Seabrook
,
NH

The discovery of alkali-silica reaction (ASR) in concrete structures at the Seabrook Station Nuclear Power Plant (Seabrook) was first documented case of ASR at any U.S. nuclear facility. The...

MWRA, Harvard University Science Complex, Pipeline Eval to Enable Construction on Site

Harvard University Science Complex, MWRA Sewer

Allston
,
MA

Harvard University planned to locate a new science complex above a Massachusetts Water Resources Authority (MWRA) brick masonry pipeline that was over 115 years old. The University was concerned...

Archdiocese of Boston, Multiple Building Condition Assessments

Archdiocese of Boston, Multiple Building Condition Assessments

Boston
,
MA
Project Contacts:

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...

SkyHouse Dallas Parking Deck

SkyHouse Dallas Parking Deck

Dallas
,
TX
Project Contacts:

The Skyhouse Dallas comprises a high-rise apartment building and adjoining eight-level parking garage. During construction of the precast, prestressed concrete parking structure, the project team...

Millennium Tower, 301 Mission Street

Millennium Tower, 301 Mission Street

San Francisco
,
CA
Project Contacts:

With bedrock more than 200 ft below street level, the fifty-eight-story Millennium Tower, like most downtown high-rises, is founded on piles driven through soft, compressible clay soils deposited...

University of the District of Columbia Plaza

University of the District of Columbia Plaza

Washington
,
DC
Project Contacts:

The University of the District of Columbia wanted to renovate the Theater of the Arts building and address ongoing leakage at the same time. The theater building adjoins and lies partially beneath...

The Artist Building at 300 Summer Street

The Artist Building at 300 Summer Street

Boston
,
MA
Project Contacts:

The Artist Building at 300 Summer Street, originally constructed in 1898, was converted to cooperative residences/art studios in the 1990s. Current flood maps show the building is vulnerable to...

MassBiologics, Stormwater Retention System

MassBiologics, Stormwater Retention System

Boston
,
MA
Project Contacts:

The stormwater retention system at the MassBiologics facility at the UMass Medical School comprises subsurface chambers constructed from modular, stackable thermoplastic units.  Following partial...

Portsmouth Navy Yard, Modular Submarine Enclosure

Portsmouth Navy Yard, Modular Submarine Enclosure

Portsmouth
,
NH
Project Contacts:

The Portsmouth Naval Shipyard owns and maintains a temporary steel modular-enclosure system to protect submarines during overhaul, repair, and modernization operations. While a contractor was...

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