ISI-Projects: Transportation

	San Francisco/Oakland Bay Bridge New East Span Skyway ISI is performing quality control ultrasonic welding inspection of the Pile Sleeve Footing Assembly. There are 160 piles, 4-6 piles per pier. This section of the Bay Bridge replacement project has a construction cost of $1.04 billion, the largest single construction contract ever awarded by the State of California. All work by ISI personnel requires Caltrans Certification for all inspection work and Caltrans approval of ISI's laboratory and laboratory technicians.
	San Francisco International Airport International Terminal - Structural Steel Welding Inspection Incorporating 30,000 tons of structural steel, the International Terminal is one the largest steel buildings on the West Coast. ISI inspectors supervised shop welding at eight different locations in Mexico, Canada, Oregon, and California, including the fabrication and welding of massive architectural trusses capable of supporting 1,000,000 lbs. On site, inspectors utilized automated ultrasonic testing (AUT). This new and highly regarded system provides a permanent record of the integrity of each weld, without the health concerns and work disruptions caused by radiography. For a movie and detailed description of AUT, click here.
	San Francisco International Airport Concourse H/ART BART Extension/Concourse H/ART Station was constructed as part of the Master Plan for the New International Terminal to bring together the new BART extension with a major aerial rapid transportation (ART) system for the San Francisco International Airport. The BART train arrives on the 5th level and passengers can transfer to the SFIA aerial transit system on the 7th level. The station is a four level 264,000 sq. ft. reinforced concrete structure supported on precast concrete piles. The seventh level canopy is designed with prescribed TK&Y node connections where SFIA requested ISI to inspect with automated ultrasonics in lieu of radiography. .
	San Francisco MUNI Third Street Light Rail Construction for Phase 1 of this project started in 2002 and will extend Muni Metro Light Rail service south from its current terminal at Fourth and King Streets.The line will cross the Fourth Street Bridge and run along Third Street and Bayshore Boulevard, ending at the Bayshore CalTrain Station in Visitacion Valley with 19 stops along its way. This phase is expected to open for service in 2005. ISI performed all soils, concrete, and welding-related QC testing and inspection services for the General Contractor. The construction scope of work included tracks, platforms, utilities, light poles and traffic signals. .