Welcome to Fort Detrick

Fort Detrick is a U.S. Army Medical Command installation supporting a multi-governmental community that conducts biomedical research and development, medical materiel management, global telecommunications, and the study of foreign plant pathogens


Each branch of the U.S. military is represented among the approximately 10,000 military, federal, and contractor employees assigned here.


Fort Detrick serves five cabinet-level agencies:

  • Department of Defense
  • Department of Homeland Security
  • Department of Agriculture
  • Department of Health and Human Services
  • Department of Veterans Affairs


Fort Detrick’s Defense Department support also includes elements of the U.S. Navy, U.S. Marine Corps, U.S. Air Force and the Joint Chiefs of Staff. Beyond that, Fort Detrick supports several unified and major Army commands, U.S. Army Forces Command, U.S. Army Space Command, U.S. Army Network Enterprise Technology Command, and U.S. Army Medical Command.


Fort Detrick encompasses nearly 1,300 acres and includes Forest Glen Annex in Silver Spring Maryland.


The installation is located within the boundaries of the City of Frederick, which offers modern housing, schools, recreation areas, excellent utilities, and access to major metropolitan areas.


Fort Detrick is situated northwest of Baltimore, Maryland (46 miles), and north of Washington, D.C. (45 miles) in Frederick County, Maryland, which adjoins Virginia, West Virginia and Pennsylvania. The major highways that access the county are I-70, I-270, U.S. 15, U.S. 40, U.S. 40A, and U.S. 340.  Frederick County is easily accessible by automobile, air, train, and motor coach.  Reagan National, Dulles International, and Baltimore/Washington International airports are less than an hour from Frederick, which is also served by Frederick Municipal Airport.  A Greyhound Bus Service is also located in Frederick City.


There is a MARC commuter rail station in downtown Frederick. If you’re coming from Washington D.C., take I-270 North to Frederick, where it merges with U.S. Route 15 North. Take Exit 16 (Motter Ave), and follow the signs to Fort Detrick’s Nallin Farm Gate. The gate is located directly across from 7-Eleven on Amber Dr.


If you’re coming from Baltimore, take I-70 West to Frederick, and follow the signs to Route 15 North, Exit 53A. Take Exit 16 ( Motter Ave), and follow the signs to Fort Detrick’s Nallin Farm Gate. The gate is located directly across from 7-Eleven on Amber Dr.


Temperatures in the winter usually range between the upper 20s to low 40s, with nighttime temperatures occasionally dropping into the low teens. Typically, summers are hot and humid with temperatures in the 80s to low 90s during the day, and overnight lows in the upper 60s to low 70s. During inclement weather, there may be changes to the installation’s operating hours. Call the Fort Detrick Weather Line at (301) 619-7611 or (800) 256-7621 for updates.


Military and civilian personnel must render courtesy to the colors during Reveille and Retreat.  Reveille is sounded at 6 a.m., Monday through Friday.  Retreat is sounded Monday through Sunday at 5 p.m.  When Retreat is sounded, military, as well as civilians, should face the flag and stand at attention.  Vehicles must stop and all passengers should get out and face the flag. If the flag is not within sight, persons should face toward the music. When “To the Colors” is sounded, an appropriate salute should be rendered.

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