Materials Rehabilitation

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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...

Service:Materials Rehabilitation, Structural Design

Market:Highway & Tunnel

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

PG&E Building 215 Market Street Annex

San Francisco, CA

Project Contacts: James Mendygral, Carolyn Searls

Now part of Pacific Gas & Electric Company’s (PG&E’s) General Offices, The Matson Shipping Building (215 Market Street) was constructed in 1924 and is listed on the National Register of Historic Places. The seven-story annex...

Service:Building Enclosure Rehabilitation, Materials Rehabilitation

Market:Office

Keywords:Award Winning, Coating, Concrete, Concrete Rehabilitation, Facade Inspection, Historic, National Register of Historic Places, Plaster, Preservation Technology , Stucco, Walls, Water Leakage, Windows

PG&E Building, 215 Market Street

San Francisco, CA

Project Contacts: James Mendygral, Carolyn Searls

Service:Building Enclosure Rehabilitation, Materials Rehabilitation

Market:Mixed-Use

Keywords:High Rise, Historic, Masonry-Terra Cotta, Masonry-Transitional, National Register of Historic Places, Preservation Technology , Roofing, Windows

MBTA Bus Repair Garage

Quincy, MA

Project Contacts: Dominic Kelly

The Massachusetts Bay Transportation Authority (MBTA) uses the Quincy Bus Garage to repair, maintain, and store many buses that they own and operate. The building includes three garage bays, offices, and locker facilities for the bus...

Service:Materials Rehabilitation, Structural Investigation

Market:Transportation

Keywords:Concrete, Cracking, Failure Investigation, Parking Structure, Slab

Griffith Observatory

Los Angeles, CA

Project Contacts: Carolyn Searls

Griffith Observatory, which sits on the southern slope of Mount Hollywood, is a Designated Historic-Cultural Monument for the City of Los Angeles. The Art Deco observatory, constructed in 1935, was envisioned and funded by Col. Griffith J....

Service:Building Enclosure Design, Building Enclosure Rehabilitation, Materials Rehabilitation

Market:Cultural

Keywords:Award Winning, Below-Grade, Cultural, Dome, Field Testing, Historic, Metal-Copper, Preservation Technology , Waterproofing

Springfield Housing and Juvenile Court (historically known as Hampden County Courthouse)

Springfield, MA

Project Contacts: Matthew Bronski, Thomas Schwartz

The Hampden County Courthouse was designed by Henry Hobson Richardson and is listed on the National Register of Historic Places. Constructed in 1871, the courthouse features a thick-walled, gneiss stone facade. SGH assessed the...

Service:Building Enclosure Investigation, Building Enclosure Rehabilitation, Materials Rehabilitation

Market:Government

Keywords:Chimney/Stack, Courthouse, Field Testing, Historic, Laboratory Testing and Analysis, Masonry, National Register of Historic Places, Nondestructive Testing, Petrography, Preservation Technology , Roof Replacement, Roofing, Spire/Bell Tower, Stone

Central Artery/Tunnel Project Slurry Walls

Boston, MA

Project Contacts: Paul Kelley, Matthew Sherman

The Central Artery/Tunnel (CA/T) Project relocated Boston’s elevated Central Artery below ground. The CA/T tunnel walls used soldier pile tremie concrete (SPTC) slurry walls as a component of the final structure. During later stages of...

Service:Materials Investigation, Materials Rehabilitation, Structural Rehabilitation

Market:Highway & Tunnel

Keywords:Civil, Concrete, Demolition, Field Testing, Heavy Loads, Laboratory Testing and Analysis, Tunnel

Tuskegee Airmen (formerly 100th Street) Bus Depot

New York, NY

Project Contacts: Paul Kelley

Replacing a 108-year-old streetcar barn, the 100th Street Bus Depot opened in 2003. Shortly after construction, the elevated concrete floor slabs cracked. The contractor attempted to repair the 280,000 sq ft of elevated decks and ramps, but...

Service:Materials Rehabilitation, Structural Investigation

Market:Transportation

Keywords:Adhesives, Sealants, and Coatings, Concrete, Concrete Rehabilitation, Cracking, Parking Structure, Petrography

Fountain View on the Plaza Garage

Kansas City, MO

Project Contacts: Dominic Kelly, Gustavo Tumialan

Fountain View on the Plaza in Kansas City includes two parking garages, Garage A and Garage B constructed in 1999. Garage A accommodates 406 cars and Garage B accommodates 248 cars. The garages are free-standing, four-story, open parking...

Service:Materials Rehabilitation, Structural Rehabilitation

Market:Parking

Keywords:Composites-FRP / CFRP / GFRP, Concrete, Construction Administration, Cracking, Field Testing, Laboratory Testing and Analysis, Parking Structure, Plastic/Composite, Structural Adequacy Assessment, Structural Strengthening

San Quentin Prison Seawall

San Francisco, CA

San Quentin Prison sits on Point San Quentin bounded by the San Francisco Bay. The site is laterally supported on the bay boundaries by the precast concrete seawall that was constructed in 2002. SGH investigated cracking and spalling of the over...

Service:Materials Rehabilitation, Structural Investigation

Market:Ports & Terminals

Keywords:Concrete, Concrete-Precast, Corrosion, Cracking, Expert Testimony, Field Testing, Laboratory Testing and Analysis, Marine Engineering, Petrography

Simpson Gumpertz & Heger

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Materials Rehabilitation

Project Term Page Tabs

Looking for more?

Storrow Drive Interchange/Tunnels

PG&E Building 215 Market Street Annex

PG&E Building, 215 Market Street

MBTA Bus Repair Garage

Griffith Observatory

Springfield Housing and Juvenile Court (historically known as Hampden County Courthouse)

Central Artery/Tunnel Project Slurry Walls

Tuskegee Airmen (formerly 100th Street) Bus Depot

Fountain View on the Plaza Garage

San Quentin Prison Seawall

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