All of the Army's uniformed rail positions have been in the Reserve since the inactivation of the last active Army rail unit, the 1st Railway Detachment at Fort Eustis, on 30 Sep 78. These are the rail units that currently exist in USAR:
757th Transportation Battalion (Railway)
- Headquartered in Milwaukee, WI, with subordinate units located in Chicago and Granite City, IL, and Fort McCoy, WI. See the unit's website at:
http://www.usarc.army.mil/88thrsc/336_tc/757_tc/
It is organized and trained for overseas deployment.
1205th Transportation Railway Operating Battalion
- Headquartered in Middletown, CT, with elements also training at NWS Earle, NJ and elsewhere. The unit is much smaller than the 757th and is organized to support CONUS railway operations for the Surface Deployment and Distribution Command (formerly the Military Traffic Management Command), such as Military Ocean Terminal, Sunny Point (MOTSU), NC, located about 25 miles south of Wilmington, NC.
1355th Transportation Railway Operating Company
- Headquartered at MOTSU, it was formerly designated as Det 1 and later Section C, 1205th TROB, before becoming a separate unit. It supports rail operations at the base.
226th Transportation Company (Railway)
- Headquartered at Westover Air Reserve Base near Springfield, MA, it is attached for peacetime administrative purposes to the 1205th TROB, but when mobilized it would become part of the 757th Trans Bn (Rwy). It is organized and trained for overseas deployment.
In addition to these rail units, the Army Reserve has Garrision Support Units at those posts serving as "power projection platforms." The organization of GSUs varies from post to post, and two have a handful of rail positions:
4003rd GSU
- Fort Hood, TX
2174th GSU
- Fort Eustis, VA
Major organizational changes are coming in the Army Reserve in the near future, and these will, quite likely, affect rail units as well.
In addition to reservists, the Army employs civilians for its daily rail operation requirements. For a good overview of the location of all military rail operations (not just Army) and the equipment operated, see Shane Deemer's website at:
http://military.railfan.net/