Retaining Wall

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National September 11 Memorial and Museum

New York, NY

Project Contacts: William Konicki, Nathaniel Smith, Milan Vatovec

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 incorporated and exposed within the...

Services:Structural Investigation, Structural Rehabilitation

Markets:Cultural

Keywords:Award Winning, Foundation, Geotechnical, Monumental Buildings, Museum, Retaining Wall, Signature Project, Structural Strengthening

Milford Regional Medical Center Meehan Family Pavilion

Milford, MA

Project Contacts: Michael Bolduc, John Thomsen

The Meehan Family Pavilion, an 88,000 sq ft addition, is Milford Regional Medical Center’s largest expansion to date. The medical center gains flexible space with this addition, allowing them to evolve with medical advances and continually...

Services:Structural Design

Markets:Health Care

Keywords:Addition, Hospital, Metal-Steel, Retaining Wall, Underpinning

Bingham Canyon Mine

Salt Lake City, UT

Project Contacts: Jesse Beaver, Phillip Sharff

A conveyor belt runs along one of the canyon benches at the copper mine. The upper slope of the canyon was undergoing a slow and predictable landslide transverse to the conveyor belt. To protect the conveyor belt from falling debris due to the...

Services:Structural Investigation

Markets:Highway & Tunnel

Keywords:Buried, Culverts and Storm Drains, Failure Investigation, Finite Element Analysis, Mechanically Stabilized Earth (MSE) Wall, Metal-Steel, Pipe, Retaining Wall, Soil-Structure Interaction, Tunnel

Retaining Wall Failure Investigation

Prescott, AZ

Project Contacts: Scott DiFiore, Bryan Strohman

Shortly after the site was developed, a terraced, mechanically stabilized earth (MSE) wall failed. The MSE wall, with heights up to 63 ft tall, consisted of precast concrete facing panels and soil backfill interlayered with geogrid reinforcement...

Services:Materials Investigation, Structural Investigation

Markets:Retail

Keywords:Failure Investigation, Field Testing, Geotechnical, Laboratory Testing and Analysis, Mechanically Stabilized Earth (MSE) Wall, Pipeline, Retaining Wall, Slopes and Embankments

St. Elizabeth's Medical Center, William F. Connell Pavilion

Boston, MA

Project Contacts: Michael Bolduc, John Thomsen, Joseph Zona

The William F. Connell Pavilion, an emergency facility for St. Elizabeth Medical Center, houses the latest state-of-the-art diagnostic and imaging equipment. The 44,000 sq ft structure includes a three-story entrance atrium with grand stair...

Services:Building Enclosure Design, Structural Design

Markets:Health Care

Keywords:Addition, New Construction, Curtain Wall, Frame Moment, Hospital, Metal-Steel, Retaining Wall, Stair

Maine Medical Center, Women and Infants Birthing Center

Portland, ME

Project Contacts: Michael Bolduc, John Thomsen, Joseph Zona

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...

Services:Structural Design

Markets:Health Care

Keywords:Addition, Bridge, Pedestrian, New Construction, Hospital, Metal-Steel, Retaining Wall

Edward A. LeLacheur Park

Lowell, MA

Project Contacts: Greggrey Cohen, Joseph Zona

The City of Lowell wanted to build a stadium for the Division A Lowell Spinners minor league baseball team on a site formerly used as an urban landfill above the banks of the Merrimack River. Below the fill were soft soils and a 72 in. dia. sewer...

Services:Building Enclosure Design, Structural Design, Structural Rehabilitation

Markets:Sports & Entertainment

Keywords:Arena/Stadium, Concrete Rehabilitation, Construction Administration, Drainage, Geotechnical, Retaining Wall, Waterproofing

23 Cornelia Street

New York, NY

Project Contacts: Kevin Poulin, Milan Vatovec

Originally a horse stable, 23 Cornelia Street is a two-story unreinforced masonry structure built c. 1870. The current owner purchased the Greenwich Village property in 2007 and hired Solomonoff Architecture Studio and SGH to design a renovation...

Services:Structural Rehabilitation

Markets:Residential - Single Family

Keywords:Adaptive Reuse, Addition, Foundation, Geotechnical, Masonry-Brick, Masonry-Unreinforced, Retaining Wall, Seismic Engineering and Retrofit, Underpinning

Wellington Crossing Retaining Wall Investigation

Waltham, MA

Project Contacts: Scott DiFiore, Bryan Strohman

Retaining walls at Wellington Crossing A & B Condominiums facilitate construction of various condominiums, roadways, parking areas, landscape areas, and detention basins. SGH investigated eight Castlerock retaining walls that experienced...

Services:Structural Investigation

Markets:Residential - Condominium

Keywords:Drainage, Geotechnical, Mechanically Stabilized Earth (MSE) Wall, Retaining Wall, Slopes and Embankments