155th Engineer Company

• Constituted 15 March 1987 in the South Dakota Army National Guard as the 155th Engineer Detachment
• Organized and Federally recognized 27 May 1987 at Rapid City
• Ordered into active Federal service 17 June 2002 at Rapid City; released from active Federal service 10 March 2003 and reverted to state control
• Reorganized and redesignated 1 September 2008 as the 155th Engineer Company

HOME STATION: Rapid City (less detachments at Winner, Platte, and Wagner)