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View 23 profiled projects

Golden Gate Bridge North Anchorage Housing

San Francisco, CA
Project Contacts: Craig Goings, Ronald Hamburger

Following the 1989 Loma Prieta earthquake, the Golden Gate Bridge District conducted a seismic evaluation of this iconic span located less than 3 mi from the San Andreas fault. The District determined the bridge could not reliably survive a...

Service:Structural Investigation
Market:Bridge
Keywords:Bridge, Major Vehicular, Civil, Concrete, Demolition, Foundation, Geotechnical, Seismic Engineering and Retrofit

First Street Bridge

Boston-Cambridge, MA
Project Contacts: Erik Farrington, Paul Kelley

The First Street Bridge is a bascule drawbridge carrying traffic westbound over Broad Canal. The bridge suffered from several forms of deterioration including damage to the concrete counterweight, the concrete deck on the approach span, and...

Service:Structural Rehabilitation
Market:Bridge
Keywords:Concrete, Deterioration, Metal-Steel, Metal, Term Contracts

Neponset River Bridge

Boston-Quincy, MA
Project Contacts: Atis Liepins

Opened in 1971, Neponset River Bridge carries Morrissey Boulevard traffic over Neponset River. The superstructure consists of steel plate girders and cover-plated steel stringers supporting a 7.5 in. thick reinforced concrete deck. The girders...

Service:Structural Rehabilitation
Market:Bridge
Keywords:Cracking, Finite Element Analysis, Heavy Loads, Structural Adequacy Assessment

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Simpson Gumpertz & Heger Inc. (SGH) is a national engineering firm that designs, investigates, and rehabilitates structures, building enclosures, and materials.

Our award-winning work encompasses building, energy, civil/infrastructure, and science/defense projects in the United States, Canada, and more than thirty additional countries.

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