Tunnel

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Storrow Drive Interchange/Tunnels

Boston, MA

Project Contacts: Rosalind Imbaro, Paul Kelley, Atis Liepins

Storrow Drive, a parkway along the Charles River in Boston, carries more than 100,000 vehicles per day. The tunnels provide access to city streets, and are constructed of reinforced concrete sections with concrete-slab roofs that are supported by...

Services:Materials Rehabilitation, Structural Design

Markets:Highway & Tunnel

Keywords:Award Winning, Below-Grade, Bridge, Major Vehicular, Concrete, Construction Administration, Cracking, Emergency Response, Field Testing, Tunnel

John R. Oishei Children’s Hospital

Buffalo, NY

Project Contacts: Peter Babaian, Pedro Sifre

The 185-bed John R. Oishei Children’s Hospital replaces the city’s 125-year-old Women and Children’s Hospital of Buffalo. With a focus on patient and family comfort, the new 440,000 sq ft hospital features amenities such as a...

Services:Building Enclosure Design, Structural Design

Markets:Health Care

Keywords:Below-Grade, Below-Ground Waterproofing, Braced Frame, Bridge, Pedestrian, Frame Moment, Metal-Steel, Revit/BIM, Truss, Tunnel

Minera Escondida, Organic Growth Project 1, Tunnel 4

Atacama Desert, Chile

Project Contacts: Jesse Beaver

Expansion of the Minera Escondida copper mine included constructing a corrugated steel structural plate arch tunnel. The tunnel acts as a buried bridge to carry a haul road over the mine’s conveyor system. During construction of the...

Services:Structural Investigation, Structural Rehabilitation

Markets:Highway & Tunnel

Keywords:Buried, Condition Assessment, Culverts and Storm Drains, Damage, Finite Element Analysis, International, Metal, Metal-Steel, Pipe, Pipe, Steel, Pipeline, Settlement, Structural Adequacy Assessment, Tunnel

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

Greenway Carousel

Boston, MA

Project Contacts: Matthew Johnson, Paul Kassabian

The Central Artery/Tunnel Project moved one of Boston’s major elevated highways underground and created usable ground-level spaces, such as the Rose Kennedy Greenway. The Rose Kennedy Greenway Conservancy undertook a project to build a...

Services:Materials Design, Materials Investigation, Structural Design

Markets:Sports & Entertainment

Keywords:Concrete, Feasibility Study, Laboratory Testing and Analysis, Materials Testing for Design, Railing, Sport/Entertainment, Tunnel

MTA South Ferry Terminal

New York, NY

Project Contacts: Paul Kelley, Milan Vatovec

SGH served as a special consultant to Metropolitan Transit Authority (MTA) Capital Construction to help them with concrete and waterproofing issues at their facilities. As part of our work, SGH investigated widespread cracking and water leakage...

Services:Building Enclosure Investigation, Structural Investigation

Markets:Transportation

Keywords:Concrete, Concrete Rehabilitation, Cracking, Nondestructive Testing, Tunnel, Water Leakage, Waterproofing

1100 Broadway

Oakland, CA

Project Contacts: Anindya Dutta, Ronald Hamburger

The 1100 Broadway project combines the adaptive reuse of the Key System Building, which was heavily damaged in the 1989 Loma Prieta earthquake, with the construction of a new twenty-story building. SGH was the structural engineer for the...

Services:Structural Design

Markets:Office

Keywords:New Construction, Demolition, Facadism, Frame Moment, Frame, Special Moment, High Rise, LEED Projects, Pile, Revit/BIM, Tunnel

Storrow Drive Tunnel Testing, Monitoring, and Rating

Boston, MA

Project Contacts: Rosalind Imbaro

Constructed in the 1950s and carrying over 100,000 vehicles per day, the Storrow Drive Interchange is a major commuting route and link to Back Bay. The interchange includes two reinforced concrete tunnels with steel-framed and reinforced...

Services:Structural Rehabilitation

Markets:Highway & Tunnel

Keywords:Concrete, Heavy Loads, Structural Adequacy Assessment, Tunnel

Central Artery Tunnel Project Leakage Investigation

Boston, MA

Project Contacts: Paul Kelley, Matthew Sherman

The Central Artery/Tunnel (CA/T) Project relocated Boston’s elevated Central Artery below ground. Systemic water leakage at the tunnel roof to slurry wall intersection created a long-term corrosion threat to the roof girders and...

Services:Building Enclosure Investigation, Structural Investigation

Markets:Highway & Tunnel

Keywords:Concrete, Expert Testimony, Tunnel, Water Leakage

Suspended Concrete Ceiling Removal over Massachusetts Turnpike

Boston, MA

Project Contacts: Michael Brainerd, Cory Brett, Scott DiFiore

Portions of the Hynes Convention Center (Hynes) are located directly over I-90, the Massachusetts Turnpike. A fifty-year-old, cast-in-place concrete slab suspended from the underside of the Hynes served as the ceiling for the western...

Services:Structural Rehabilitation

Markets:Highway & Tunnel

Keywords:Award Winning, Canopy/Ceiling, Civil, Concrete, Construction Administration, Construction Engineering, Construction Staging, Demolition, Shoring/Temporary Structure, Slab, Tunnel

Simpson Gumpertz & Heger

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Tunnel

Project Term Page Tabs

Looking for more?

Storrow Drive Interchange/Tunnels

John R. Oishei Children’s Hospital

Minera Escondida, Organic Growth Project 1, Tunnel 4

Bingham Canyon Mine

Greenway Carousel

MTA South Ferry Terminal

1100 Broadway

Storrow Drive Tunnel Testing, Monitoring, and Rating

Central Artery Tunnel Project Leakage Investigation

Suspended Concrete Ceiling Removal over Massachusetts Turnpike

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