Caltrain Centralized Equipment Maintenance and Operations Facility

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Coordinates: 37°20′22″N 121°54′35″W / 37.33944°N 121.90972°W / 37.33944; -121.90972

The facility, taken from a train looking north, just prior to the completion of construction.

The Caltrain Centralized Equipment Maintenance and Operations Facility (CEMOF) is a train maintenance yard and facility located to the north of San Jose Diridon station in San Jose. The $140 million maintenance station began construction in 2004 and opened on September 29, 2007.[1][2] The facility consolidates much of Caltrain's maintenance and operations into one location.[3]


Work on the USD $140 million project began in October 2004, with USD $105.8 million coming from federal funding and USD $8.2 million from state funding.[3] The construction phase of the facility lasted approximately three years from 2004 to September 29, 2007, when Caltrain held a grand opening ceremony.[2] The first shift of maintenance and operations crew did not move into the new shop until October 21, followed by the second and third shifts in November. The last component of this yard, the fueling storage and station,[4] was completed in Spring 2008.[3]


Caltrain's CEMOF replaced an old 22-acre (8.9 ha) Southern Pacific Railroad maintenance yard formerly located on the same site. The entire facility includes a central control building, a three floor, 58,800 square feet (5,500 m2) maintenance shop, a machine to wash trains, one 3,000 sq ft (279 m2) water treatment plant, a fueling station and railroad tracks for train storage.[3] About 150 people work at the maintenance site and three shifts of workers keep the facility staffed at all times.[5] The yard contains a 250-foot (76 m) tunnel for personnel to cross safely under the active train tracks.[3]

The maintenance hall contains a crane with a lifting capacity of 25,000 pounds (11,000 kg) and two 800 ft (244 m) service pits.[5] This new building is said to improve servicing conditions, safety, and efficiency; it allows mechanics to work indoors rather than outdoors.[6][7] In addition, Caltrain can perform maintenance tasks once conducted by out-of-state contractors,[4] such as wheel-truing.[3]

An automated train washing machine washes half of Caltrain's fleet each day or at least twice a week, up from twice a year before the facility.[3][5] The machine can clean a five-car train in about 25 minutes using water from two 35,000 US gallons (132,000 l) cisterns.[5] 80% of the water used in the cleaning process is reused to wash another train.[3] The washer is located to the northwest of the maintenance shop.[5]

Daily repair tasks are carried out in the Service & Inspection Area, an 80-foot (24 m)-high outdoor facility. There are two tracks that traverse the facility.[5] In Spring 2008, a 70,000 US gal (265,000 l) gallon fuel tank was installed there to facilitate on-site fueling.[citation needed] The Service & Inspection Area is located to the northeast of the three story repair shop.[5]

See also[edit]


  1. ^ Manekin, Michael (December 5, 2006). "Maintenance complex nearly done for Caltrain". Oakland Tribune  – via HighBeam (subscription required). Retrieved September 7, 2014. 
  2. ^ a b "CEMOF Grand Opening". San Jose Mercury News. Retrieved 2008-01-26. 
  3. ^ a b c d e f g h "CEMOF: Centralized Equipment, Maintenance and Operations Facility: Fact Sheet". Caltrain. Archived from the original on 2007-10-19. Retrieved 2008-01-26. 
  4. ^ a b "CEMOF Chronicle: Fall 2006" (PDF). Caltrain. Fall 2006. Archived from the original (PDF) on 2007-10-23. Retrieved 2008-01-27. 
  5. ^ a b c d e f g "CEMOF Chronicle: Fall 2007" (PDF). Caltrain. Fall 2007. Retrieved 2008-01-27. [dead link]
  6. ^ "The CEMOF Chronicle Summer 2006" (PDF). Caltrain. Summer 2006. Archived from the original (PDF) on 2007-10-23. Retrieved 2008-01-27. 
  7. ^ Lohse, Deborah (September 30, 2007). "Caltrain Shows Off New San Jose Maintenance Facility". San Jose Mercury News. Archived from the original on September 7, 2014. 

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