Cracking

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Seabrook Station Nuclear Power Plant

Seabrook, NH

Project Contacts: Jesse Beaver, Said Bolourchi, Matthew Sherman

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 Nuclear Regulatory Commission (NRC) required Seabrook...

Services:Materials Investigation, Structural Investigation

Markets:Nuclear

Keywords:Concrete, Cracking, Field Testing, Laboratory Testing and Analysis, Nondestructive Testing, Petrography

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

Homestead Hills Development

Thornton, CO

Project Contacts: Kevin Moore

The Homestead Hills development comprises 178 one- and two-story, wood-framed homes constructed between 2005 and 2010. Shortly after construction, homeowners reported cracked drywall, displaced concrete flatwork, and deflected and damaged...

Services:Structural Investigation

Markets:Residential - Single Family

Keywords:Building Settlement, Cracking, Expert Testimony, Ground (Soil) Improvement, Residential, Settlement

DC Water North East Boundary Trunk Sewer

Washington, DC

Project Contacts: Murat Engindeniz, Rasko Ojdrovic

In 2014, a five-story residence was constructed directly over DC Water’s North East Boundary Trunk Sewer (NEBTS) with only about 2 ft of soil between the bottom of the basement and the top of the 22-ft dia. masonry sewer. DC Water...

Services:Structural Investigation, Structural Rehabilitation

Markets:Water/Wastewater

Keywords:Composites-FRP / CFRP / GFRP, Cracking, Masonry-Brick, Pipe

The Carillon, 185 Massachusetts Avenue

Boston, MA

Project Contacts: Greggrey Cohen, Paul Millette

As required by the City of Boston, The Carillon’s condominium association undertook an inspection of the building’s facade. SGH performed the inspection, identifying cracks in the glass fiber-reinforced concrete (GFRC) panels along...

Services:Building Enclosure Rehabilitation, Structural Investigation, Structural Rehabilitation

Markets:Mixed-Use

Keywords:Composites-FRP / CFRP / GFRP, Concrete Rehabilitation, Condominium, Cracking, Facade Inspection, Mockup, Ordinance, Residential, Sealants and Coatings, Water Leakage

Palo Verde Nuclear Generating Station Pipelines

Tonopah, AZ

Project Contacts: Rasko Ojdrovic, Mehdi Zarghamee

Constructed in the early 1980s by the Arizona Public Service Company, the water reclamation supply system at Palo Verde Nuclear Generating Plant consists of thirty-six miles of prestressed concrete cylinder pipe (PCCP), with diameters ranging...

Services:Structural Investigation

Markets:Nuclear

Keywords:Condition Assessment, Corrosion, Cracking, Failure Risk Assessment, PCCP, Pipe, Pipeline, Risk Assessment

Montauk Lighthouse

Montauk, NY

Authorized by the Second Congress and President George Washington, construction of the Montauk Lighthouse at the eastern end of Long Island was completed in 1796. The octagonal lighthouse suffered from chronic leakage and numerous repairs...

Services:Building Enclosure Investigation, Structural Investigation

Markets:Cultural

Keywords:Cracking, Field Testing, Freeze-Thaw, Historic, Laboratory Testing and Analysis, Marine Engineering, Masonry-Load Bearing, National Register of Historic Places, Preservation Technology , Stone

Stroube Drain

Oxnard, CA

Project Contacts: James McDonald, James Parker, Phillip Sharff

After constructing the first 1.5 mi of the Stroube Drain cast-in-place, reinforced concrete box culvert, the owner discovered the design did not consider live loads for the most severe traffic orientation. The owner wanted to know if cracking...

Services:Structural Investigation

Markets:Water/Wastewater

Keywords:Concrete, Concrete-Reinforced, Condition Assessment, Cracking, Culvert, Culverts and Storm Drains, Expert Testimony, Storm Drains

National Guard Armory Buildings

MA

Project Contacts: Greggrey Cohen, Jeffrey Langlois

During February 2011, heavy snowfall with a sustained period of below-freezing temperatures resulted in significant snow accumulation in the northeast United States. SGH investigated reported fractures in glue-laminated (glulam) timber roof beams...

Services:Structural Investigation, Structural Rehabilitation

Markets:Government

Keywords:Cracking, Failure Investigation, Heavy Timber, Snow and Ice, Wood

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