Hoosac Wind Project, MA
Hoosac Wind Project
The Hoosac Wind Project is located in the mountains of Western Massachusetts. The project includes nineteen 1.5 MW wind turbines consisting of a steel tower supported by 45 ft dia. reinforced-concrete mat foundations. During construction, the contractor identified issues with understrength concrete and retained SGH to investigate the problems, identify solutions, and assist with dispute resolution.
SGH performed the following work for the project:
- Performed finite-element analyses of as-constructed foundations to confirm adequacy with lower-than-specified concrete strength and avoid costly retrofit
- Performed petrographic examination of concrete cylinders to determine possible causes of understrength concrete
- Reviewed concrete mix-design submittals and quality assurance test results to identify flaws in either process that could have contributed to understrength concrete
- Prepared an expert report and testified at an arbitration, and successfully assisted the contractor in recovering costs due to delays
Repair & Rehabilitation
Key team members
Seabrook Station Nuclear Power Plant
The Nuclear Regulatory Commission (NRC) required Seabrook to investigate the implications of this finding and Seabrook subsequently retained SGH to assess the existing, safety-critical structures for the presence of ASR and the evaluate the effects of distress on the structural performance.
Solar Photovoltaic Panel Installations
The Cape & Vineyard Electric Cooperative (CVEC) is an electric cooperative comprised of seventeen towns on Cape Cod and Martha’s Vineyard. SGH assisted electrical contractors and investors for the CVEC projects by evaluating existing roofs to receive solar photovoltaic (PV) panels.