Projects

The new $152 million courthouse features 15 courtrooms and encompasses 169,147-square-feet. It will be six stories above ground and include a basement level. The new courthouse replaces the existing courthouse and resolve operational efficiencies and ongoing savings through consolidation of current court services.

The Taxiway L improvement project will primarily consist of the removal of existing asphalt concrete surfaces, performing necessary excavation and grading, recompacting existing soil, constructing storm drain improvements, installing pavement markings and striping, taxiway edge lighting and signs, runway guard lights and construct new pavement sections: Portland Cement Concrete (PCC) pavements (P-501) over Cement Treated Base (P-301) on Cement Treated Subgrade (P-156).

Twining provided quality control services for this project which consisted of the installation of transformers at multiple chase banks throughout the Los Angeles County and Orange County.

This project consisted of utility upgrades and the expansion of Lockheed Martin’s Plant 10 in Palmdale.

The San Onofre nuclear plant with its instantly recognizable twin domes have entered retirement. The $5 billion decommissioning and demolition is considered one of the largest and most complex decommissioning projects in the country.

The County of San Diego is constructing 40 megawatts (MW) of battery energy storage located on approximately 4.22-acres off East Mission Road in the unincorporated community of Fallbrook. When completed, the storage facility will be the largest in the San Diego County region.

Heritage Field K-8 No.3 School is located within the Great Park planned community and will include the construction of the brand-new Kindergarten through Eighth Grade facility on an approximately 13-acre site consisting of seven separate buildings with site improvements. Buildings include administration, food service, gymnasium, multi-purpose, and classrooms. The estimated building footprint is approximately 102,230 square feet.

The Haynes Repowering Project modernized how residents of Los Angeles receive their electricity. By updating the technology at the Haynes Generating Station, the plant became more reliable and cleaner.

This project consisted of the construction of new 500kV and 230kV electric transmission lines between the existing Imperial Valley and Sycamore Canyon Substations, as well as the construction of a new Suncrest Substation. Additional system upgrades and modifications were also necessary in order to reliably operate the new lines. The entire project spans 117 miles between the El Centro area of Imperial County and southwest San Diego County.