Amtrak's New Northeast Corridor Workhorse

Siemens ACS-64 #600 at Sacramento Manufacturing Facility May 2013
Photo Credit: Siemens/Amtrak (for all images unless otherwise specified)

Last week Friday (Feb. 7) Amtrak's newest fleet member completed its inaugural run on the the busy Northeast Corridor line on Northeast Regional #171 from Boston South Station to Union Station, Washington D.C. The brand new Siemens ACS-64 (ACS stands for "American Cities Sprinter") electric locomotive at the head end of the train is the first of 70 of the type to be delivered to Amtrak over a period of roughly two years. The locomotives, which are assembled by Siemens in Sacramento, CA to satisfy the "Buy America" requirement for federal funding, will be delivered at a rate of approximately three per month, with the final units arriving sometime next year. 

ACS-64 engineer's compartment

In addition to eventually powering all Northeast Regional and long-distance trains on the Northeast Corridor (NEC) (which serves Washington D.C., Baltimore, Philadelphia, New York, Boston, and points in between), the new locomotives will also operate on the Keystone Corridor branch line between Philadelphia and Harrisburg, PA. 

The incoming locomotive units will replace the 20 EMD AEM-7 (DC), 29 EMD AEM-7 (AC), and 15 Bombardier/Alstom HHP-8 electric locomotives currently powering trains on the NEC, most having over 3.5 million miles on them. The Swedish-designed AEM-7 locomotives (nicknamed "toasters" and originally all DC units) were delivered to Amtrak between 1978 and 1988. Between 1999 and 2002, 29 of these locomotives were upgraded by Amtrak and Alstom  to "AC" units with greater amount of horsepower allowing them to haul longer trains.