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National City Maintenance Facility
National City, California

This is a joint use campus type service facility serving both Amtrak passenger trains and Burlington Northern and Santa Fe Railway Company (BNSF) freight locomotives. The facility includes a service and inspection bay, locomotive service platforms, fuel and oil storage and a trainwash facility.

Electrical design provided a 12.47 KV primary electrical distribution system for the 30-acre facility including of primary electrical switchgear and metering with underground concrete encased duct banks for power distribution. Pad mount transformers were located at each facility, with building service switchgear and load centers for each facility. Emergency generators were provided at each facility to provide 100% backup.

The service and inspection bay is designed for cleaning and servicing passenger cars for Amtrak. The facility can house trainsets of up to seven passenger cars with front and rear locomotives. This area included two inspection pits with lighting and compressed air, and water fill and toilet dump stations.

The locomotive service platforms include elevated rail through an inspection pit area to provide access to the trucks and traction motors on the locomotives and an elevated platform for access to the engine compartment and cab. The platform provides dispensing facilities for diesel fuel, lube oil, compressor oil, and auxiliary alternator motor oil.

The facility design included a pneumatic traction sanding system. The system utilized the elevated platforms for access to the locomotives. Sand was stored in a 1,000 cubic foot bulk silo that was filled directly from sand delivery trucks. The system conveyed sand from the silo to the individual sand pumps and from the sand pumps to the locomotives. All transport systems used a dense phase transfer process.

Fuel is stored in four 30,000-gallon storage tanks and oils are stored in smaller tanks adjacent to the facility. All tanks are double-contained. Fuel and oil dispensing systems are all PLC controlled. The facility includes a fuel inventory management system which monitors all incoming fuel and fuel dispensed to the locomotives. All wash down water from the facility is collected and pumped to an oil /water separator prior to disposal in the sanitary sewer system.

The trainwash facility includes a wash bay and a separate equipment room. The wash bay included the chemical feed arch, brush wash, spot spray wash, rinse spray, rinse brushes, a final rinse and a spot free rinse. The system utilizes a wash water reclamation system which reuses about 70 percent of the wash water one each cycle. The wash system also includes a treatment process for odor control and wastewater disposal.