The City of Los Angeles has long been a leader in the adoption and use of alternative fuels and clean fuel technologies and has been actively retiring its fleet of diesel-powered street sweepers and replacing them with CNG models since 2002. The 7th Street Sweeper Maintenance Facility is one of the primary street sweeper repair facilities operated by the City of Los Angeles, providing maintenance and repair service to seventy-nine (79) street sweepers. With the City converting its entire fleet of street sweepers to natural gas models, maintenance and repair facilities are being upgraded to allow for their safe repair as part of the City's Alternative Fuel Infrastructure program. Initial planning and design for the project began in 2005 with the Citys Department of Public Works-Bureau of Engineering handling all aspects of the design. A Request for Bid was issued in August 2006 with a contract awarded to the successful bidder, Golden Acquisition Corp. (dba EFS West), in February 2007. A pre-construction meeting was held on March 8, 2007 with physical construction beginning approximately two weeks later.
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The project is complete as of July 3, 2008.
The primary objective of this project was to upgrade and retrofit the facility to allow for the safe repair of street sweepers powered by clean-burning compressed natural gas (CNG). CNG, being a lighter-than-air gas, poses specific risks when vehicles are repaired indoors. Gas leaks, though extremely rare, can pose hazards when the gas becomes trapped within a building or other confined space.
The facility has been successfully upgraded and all systems are now functional. Modifications included: installation of gas detection and alarm systems; ventilation system upgrades, including installation of make up air units (MAUs) and exhaust vents; replacement of the existing heating system; upgrade of all electrical equipment to comply with approved safety standards and codes; installation of approved fire-rated doors; sealing of any gaps or openings in walls and ceilings; installation of fire sprinklers; and separating the natural gas vehicle area from other areas of the building. In addition, the contractor provided training to City staff of the operation and function of the new systems.
City of Los Angeles Department of Building & Safety; Southern California Gas Company;
EFS West (General Contractor)